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|
||||
|
||||
# DNS Server Algorithm & Flowchart
|
||||
|
||||
This document outlines the algorithm and flowchart for a DNS server implementation compliant with RFC 1035 (DNS) and RFC 4034 (DNSSEC).
|
||||
|
||||
---
|
||||
|
||||
## ✅ Server Algorithm
|
||||
|
||||
### 1. Server Initialization
|
||||
|
||||
1. Load configuration from environment variables.
|
||||
2. Initialize the logging system.
|
||||
3. Create SQLite database connection and initialize schema.
|
||||
4. Initialize cache with NS records.
|
||||
5. Start periodic cache cleanup task (every 5 minutes).
|
||||
6. Bind and listen on UDP and TCP sockets.
|
||||
|
||||
### 2. Query Handling Flow
|
||||
|
||||
#### Upon Receiving a DNS Query:
|
||||
|
||||
1. Validate DNS query packet.
|
||||
2. Parse header and extract domain name and query type.
|
||||
3. If query type is `DNSKEY` or `DS`, return signed records.
|
||||
4. Check DNS cache:
|
||||
- If **hit**, build and return response.
|
||||
- If **miss**, lookup in database:
|
||||
- If found, respond and cache it.
|
||||
- If not found:
|
||||
- If authoritative, return `NXDOMAIN`.
|
||||
- Else, forward to upstream resolvers.
|
||||
5. Add DNSSEC signatures if applicable.
|
||||
6. Send response to the client.
|
||||
|
||||
### 3. DNSSEC Signing Process
|
||||
|
||||
1. Load DNSSEC key from configured file.
|
||||
2. For each relevant record:
|
||||
- Generate `RRSIG`.
|
||||
- Encode signature (Base64).
|
||||
- Calculate key tag and signature expiration.
|
||||
3. Add `RRSIG` to the answer section.
|
||||
4. Include `DNSKEY` in the authority section if needed.
|
||||
|
||||
### 4. Response Generation Logic
|
||||
|
||||
1. Construct response header:
|
||||
- Set QR flag and response code.
|
||||
- Include Authoritative Answer (AA) if authoritative.
|
||||
2. Attach original question section.
|
||||
3. Populate:
|
||||
- **Answer** section: with resolved records.
|
||||
- **Authority** section: with NS and DS records.
|
||||
- **Additional** section: with glue records, DNSKEY if required.
|
||||
|
||||
---
|
||||
|
||||
## 📊 Flowchart
|
||||
|
||||
Below is the visual representation of the DNS query handling logic:
|
||||
|
||||
```
|
||||
|
||||
+---------------------+
|
||||
| Start DNS Server |
|
||||
+---------------------+
|
||||
|
|
||||
v
|
||||
+---------------------+
|
||||
| Receive DNS Query |
|
||||
+---------------------+
|
||||
|
|
||||
v
|
||||
+---------------------+
|
||||
| Parse Header and |
|
||||
| Extract Domain & |
|
||||
| Query Type |
|
||||
+---------------------+
|
||||
|
|
||||
+---------------------+
|
||||
| |
|
||||
v v
|
||||
+---------------------+ +---------------------+
|
||||
| Is Query Type | | Use Cache |
|
||||
| DNSKEY/DS? | | |
|
||||
+---------------------+ +---------------------+
|
||||
| |
|
||||
Yes | |
|
||||
v v
|
||||
+---------------------+ +---------------------+
|
||||
| Return | | Lookup in SQLite DB |
|
||||
| DNSSEC Record | | |
|
||||
+---------------------+ +---------------------+
|
||||
|
|
||||
v
|
||||
+---------------------+
|
||||
| Is Authoritative |
|
||||
| Zone? |
|
||||
+---------------------+
|
||||
|
|
||||
No |
|
||||
v
|
||||
+---------------------+
|
||||
| Return NXDOMAIN |
|
||||
+---------------------+
|
||||
|
|
||||
v
|
||||
+---------------------+
|
||||
| Add GSSEC |
|
||||
+---------------------+
|
||||
|
|
||||
v
|
||||
+---------------------+
|
||||
| Send Response |
|
||||
+---------------------+
|
||||
|
|
||||
v
|
||||
+---------------------+
|
||||
| End |
|
||||
+---------------------+
|
||||
|
||||
```
|
||||
|
||||
|
||||
## 🧩 Key Components
|
||||
|
||||
| Component | Purpose | Details |
|
||||
|----------------|----------------------------|------------------------------------------|
|
||||
| `DnsCache` | DNS Response Cache | Thread-safe HashMap with TTL |
|
||||
| `ServerConfig` | Server Configuration | Loaded via environment variables |
|
||||
| `rusqlite` | Record Storage | SQLite database backend |
|
||||
| `tokio` | Async I/O Runtime | UDP/TCP async handlers and tasks |
|
||||
| `DNSSEC` | Secure DNS Signing | RSA-SHA256 with Base64-encoded keys |
|
||||
|
||||
---
|
||||
|
||||
## ⚠️ Error Handling Strategy
|
||||
|
||||
- Custom `DnsError` enum via `thiserror`
|
||||
- Graceful shutdown via `SIGINT`
|
||||
- Cache cleanup every 5 minutes
|
||||
- Fallback to resolver forwarding
|
||||
- Detailed logging at every stage
|
||||
|
||||
---
|
||||
@@ -0,0 +1,128 @@
|
||||
# Contributor Covenant Code of Conduct
|
||||
|
||||
## Our Pledge
|
||||
|
||||
We as members, contributors, and leaders pledge to make participation in our
|
||||
community a harassment-free experience for everyone, regardless of age, body
|
||||
size, visible or invisible disability, ethnicity, sex characteristics, gender
|
||||
identity and expression, level of experience, education, socio-economic status,
|
||||
nationality, personal appearance, race, religion, or sexual identity
|
||||
and orientation.
|
||||
|
||||
We pledge to act and interact in ways that contribute to an open, welcoming,
|
||||
diverse, inclusive, and healthy community.
|
||||
|
||||
## Our Standards
|
||||
|
||||
Examples of behavior that contributes to a positive environment for our
|
||||
community include:
|
||||
|
||||
* Demonstrating empathy and kindness toward other people
|
||||
* Being respectful of differing opinions, viewpoints, and experiences
|
||||
* Giving and gracefully accepting constructive feedback
|
||||
* Accepting responsibility and apologizing to those affected by our mistakes,
|
||||
and learning from the experience
|
||||
* Focusing on what is best not just for us as individuals, but for the
|
||||
overall community
|
||||
|
||||
Examples of unacceptable behavior include:
|
||||
|
||||
* The use of sexualized language or imagery, and sexual attention or
|
||||
advances of any kind
|
||||
* Trolling, insulting or derogatory comments, and personal or political attacks
|
||||
* Public or private harassment
|
||||
* Publishing others' private information, such as a physical or email
|
||||
address, without their explicit permission
|
||||
* Other conduct which could reasonably be considered inappropriate in a
|
||||
professional setting
|
||||
|
||||
## Enforcement Responsibilities
|
||||
|
||||
Community leaders are responsible for clarifying and enforcing our standards of
|
||||
acceptable behavior and will take appropriate and fair corrective action in
|
||||
response to any behavior that they deem inappropriate, threatening, offensive,
|
||||
or harmful.
|
||||
|
||||
Community leaders have the right and responsibility to remove, edit, or reject
|
||||
comments, commits, code, wiki edits, issues, and other contributions that are
|
||||
not aligned to this Code of Conduct, and will communicate reasons for moderation
|
||||
decisions when appropriate.
|
||||
|
||||
## Scope
|
||||
|
||||
This Code of Conduct applies within all community spaces, and also applies when
|
||||
an individual is officially representing the community in public spaces.
|
||||
Examples of representing our community include using an official e-mail address,
|
||||
posting via an official social media account, or acting as an appointed
|
||||
representative at an online or offline event.
|
||||
|
||||
## Enforcement
|
||||
|
||||
Instances of abusive, harassing, or otherwise unacceptable behavior may be
|
||||
reported to the community leaders responsible for enforcement at
|
||||
mailto: sunil@thakares.com.
|
||||
All complaints will be reviewed and investigated promptly and fairly.
|
||||
|
||||
All community leaders are obligated to respect the privacy and security of the
|
||||
reporter of any incident.
|
||||
|
||||
## Enforcement Guidelines
|
||||
|
||||
Community leaders will follow these Community Impact Guidelines in determining
|
||||
the consequences for any action they deem in violation of this Code of Conduct:
|
||||
|
||||
### 1. Correction
|
||||
|
||||
**Community Impact**: Use of inappropriate language or other behavior deemed
|
||||
unprofessional or unwelcome in the community.
|
||||
|
||||
**Consequence**: A private, written warning from community leaders, providing
|
||||
clarity around the nature of the violation and an explanation of why the
|
||||
behavior was inappropriate. A public apology may be requested.
|
||||
|
||||
### 2. Warning
|
||||
|
||||
**Community Impact**: A violation through a single incident or series
|
||||
of actions.
|
||||
|
||||
**Consequence**: A warning with consequences for continued behavior. No
|
||||
interaction with the people involved, including unsolicited interaction with
|
||||
those enforcing the Code of Conduct, for a specified period of time. This
|
||||
includes avoiding interactions in community spaces as well as external channels
|
||||
like social media. Violating these terms may lead to a temporary or
|
||||
permanent ban.
|
||||
|
||||
### 3. Temporary Ban
|
||||
|
||||
**Community Impact**: A serious violation of community standards, including
|
||||
sustained inappropriate behavior.
|
||||
|
||||
**Consequence**: A temporary ban from any sort of interaction or public
|
||||
communication with the community for a specified period of time. No public or
|
||||
private interaction with the people involved, including unsolicited interaction
|
||||
with those enforcing the Code of Conduct, is allowed during this period.
|
||||
Violating these terms may lead to a permanent ban.
|
||||
|
||||
### 4. Permanent Ban
|
||||
|
||||
**Community Impact**: Demonstrating a pattern of violation of community
|
||||
standards, including sustained inappropriate behavior, harassment of an
|
||||
individual, or aggression toward or disparagement of classes of individuals.
|
||||
|
||||
**Consequence**: A permanent ban from any sort of public interaction within
|
||||
the community.
|
||||
|
||||
## Attribution
|
||||
|
||||
This Code of Conduct is adapted from the [Contributor Covenant][homepage],
|
||||
version 2.0, available at
|
||||
https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
|
||||
|
||||
Community Impact Guidelines were inspired by [Mozilla's code of conduct
|
||||
enforcement ladder](https://github.com/mozilla/diversity).
|
||||
|
||||
[homepage]: https://www.contributor-covenant.org
|
||||
|
||||
For answers to common questions about this code of conduct, see the FAQ at
|
||||
https://www.contributor-covenant.org/faq. Translations are available at
|
||||
https://www.contributor-covenant.org/translations.
|
||||
+253
@@ -0,0 +1,253 @@
|
||||
# Contributing to nx9-dns-server
|
||||
|
||||
Thank you for considering contributing to nx9-dns-server! This document provides guidelines and instructions to help you contribute effectively to this project.
|
||||
|
||||
## Table of Contents
|
||||
|
||||
- [Code of Conduct](#code-of-conduct)
|
||||
- [Getting Started](#getting-started)
|
||||
- [Project Setup](#project-setup)
|
||||
- [Development Environment](#development-environment)
|
||||
- [How to Contribute](#how-to-contribute)
|
||||
- [Reporting Bugs](#reporting-bugs)
|
||||
- [Suggesting Enhancements](#suggesting-enhancements)
|
||||
- [Code Contributions](#code-contributions)
|
||||
- [Pull Request Process](#pull-request-process)
|
||||
- [Style Guidelines](#style-guidelines)
|
||||
- [Rust Code Style](#rust-code-style)
|
||||
- [Commit Messages](#commit-messages)
|
||||
- [Documentation](#documentation)
|
||||
- [Priority Areas](#priority-areas)
|
||||
- [Community](#community)
|
||||
- [License](#license)
|
||||
|
||||
## Code of Conduct
|
||||
|
||||
By participating in this project, you are expected to uphold our [Code of Conduct](CODE_OF_CONDUCT.md). Please report unacceptable behavior to [project maintainers](mailto:maintainer@example.com).
|
||||
|
||||
## Getting Started
|
||||
|
||||
### Project Setup
|
||||
|
||||
1. **Fork the repository** on GitHub
|
||||
2. **Clone your fork**:
|
||||
```bash
|
||||
git clone https://github.com/your-username/nx9-dns-server.git
|
||||
cd nx9-dns-server
|
||||
```
|
||||
3. **Add the upstream remote**:
|
||||
```bash
|
||||
git remote add upstream https://github.com/thakares/nx9-dns-server.git
|
||||
```
|
||||
4. **Create a branch** for your work:
|
||||
```bash
|
||||
git checkout -b feature/your-feature-name
|
||||
```
|
||||
|
||||
### Development Environment
|
||||
|
||||
#### Requirements
|
||||
- Rust (stable, 1.70+)
|
||||
- SQLite 3.x
|
||||
- Cargo and standard Rust toolchain
|
||||
|
||||
#### Setup
|
||||
1. **Install dependencies**:
|
||||
```bash
|
||||
# For Debian/Ubuntu
|
||||
sudo apt-get install build-essential pkg-config libsqlite3-dev
|
||||
|
||||
# For Fedora/RHEL
|
||||
sudo dnf install gcc sqlite-devel pkgconfig
|
||||
|
||||
# For macOS with Homebrew
|
||||
brew install sqlite
|
||||
```
|
||||
|
||||
2. **Compile and run the project**:
|
||||
```bash
|
||||
cargo build
|
||||
cargo run
|
||||
```
|
||||
|
||||
3. **Run tests**:
|
||||
```bash
|
||||
cargo test
|
||||
```
|
||||
|
||||
## How to Contribute
|
||||
|
||||
### Reporting Bugs
|
||||
|
||||
Before submitting a bug report:
|
||||
- Check the [issue tracker](https://github.com/thakares/nx9-dns-server/issues) to see if the issue has already been reported
|
||||
- Make sure you're using the latest version of the software
|
||||
- Perform a quick search to see if the problem has already been addressed
|
||||
|
||||
When submitting a bug report:
|
||||
1. Use the bug report template provided
|
||||
2. Include a clear and descriptive title
|
||||
3. Describe the exact steps to reproduce the issue
|
||||
4. Provide specific examples to demonstrate the steps
|
||||
5. Describe the behavior you observed and what you expected to see
|
||||
6. Include relevant logs, screenshots, or other materials
|
||||
7. Mention your environment (OS, Rust version, etc.)
|
||||
|
||||
### Suggesting Enhancements
|
||||
|
||||
Enhancement suggestions are tracked as GitHub issues. When creating an enhancement suggestion:
|
||||
1. Use the feature request template provided
|
||||
2. Include a clear and descriptive title
|
||||
3. Provide a detailed description of the proposed functionality
|
||||
4. Explain why this enhancement would be useful to most users
|
||||
5. List any alternatives you've considered
|
||||
6. Include any mockups or examples if applicable
|
||||
|
||||
### Code Contributions
|
||||
|
||||
We're actively seeking contributions in these areas:
|
||||
|
||||
1. **Web UI Development**
|
||||
- Frontend components and integration with backend
|
||||
- UI/UX design for DNS management
|
||||
|
||||
2. **API Service**
|
||||
- RESTful API implementation
|
||||
- Authentication and permission handling
|
||||
- Request validation
|
||||
|
||||
3. **User Management**
|
||||
- Authentication systems
|
||||
- Role-based access control
|
||||
- User onboarding flows
|
||||
|
||||
4. **DNSSEC Improvements**
|
||||
- Key rotation automation
|
||||
- Signature verification tools
|
||||
- DNSSEC validation utilities
|
||||
|
||||
5. **Core DNS Improvements**
|
||||
- Performance optimizations
|
||||
- Additional record type support
|
||||
- Protocol extensions
|
||||
|
||||
6. **Documentation and Testing**
|
||||
- Improving guides and examples
|
||||
- Unit and integration tests
|
||||
- Benchmarking tools
|
||||
|
||||
## Pull Request Process
|
||||
|
||||
1. **Update your fork** with the latest from upstream:
|
||||
```bash
|
||||
git fetch upstream
|
||||
git merge upstream/main
|
||||
```
|
||||
|
||||
2. **Implement your changes** and commit them to your feature branch
|
||||
|
||||
3. **Run the test suite** to ensure your changes don't break existing functionality:
|
||||
```bash
|
||||
cargo test
|
||||
```
|
||||
|
||||
4. **Add or update tests** as needed for your new functionality
|
||||
|
||||
5. **Update documentation** including README.md if needed
|
||||
|
||||
6. **Submit a pull request** to the main repository:
|
||||
- Fill out the PR template completely
|
||||
- Reference any related issues (e.g., "Fixes #123")
|
||||
- Include a clear description of the changes and their motivation
|
||||
- Add screenshots or terminal output if relevant
|
||||
|
||||
7. **Code review process**:
|
||||
- Maintainers will review your PR
|
||||
- Address any requested changes or feedback
|
||||
- Once approved, maintainers will merge your PR
|
||||
|
||||
## Style Guidelines
|
||||
|
||||
### Rust Code Style
|
||||
|
||||
- Follow the [Rust API Guidelines](https://rust-lang.github.io/api-guidelines/)
|
||||
- Use `rustfmt` to format your code:
|
||||
```bash
|
||||
cargo fmt
|
||||
```
|
||||
- Use `clippy` to catch common mistakes and non-idiomatic code:
|
||||
```bash
|
||||
cargo clippy
|
||||
```
|
||||
- Follow the existing project style for consistency
|
||||
- Use meaningful variable and function names
|
||||
- Include comments for complex sections of code
|
||||
- Write comprehensive documentation for public API functions
|
||||
|
||||
### Commit Messages
|
||||
|
||||
- Use the present tense ("Add feature" not "Added feature")
|
||||
- Use the imperative mood ("Move cursor to..." not "Moves cursor to...")
|
||||
- Limit the first line to 72 characters or less
|
||||
- Reference issues and pull requests after the first line
|
||||
- Consider using a structured format:
|
||||
```
|
||||
[Component] Short summary (up to 72 chars)
|
||||
|
||||
More detailed explanation, if necessary. Wrap lines at around 72
|
||||
characters. Explain the problem this commit is solving. Focus on why
|
||||
you are making this change as opposed to how.
|
||||
|
||||
Fixes #123
|
||||
```
|
||||
|
||||
### Documentation
|
||||
|
||||
- Use proper grammatical sentences with punctuation
|
||||
- Keep documentation up-to-date with code changes
|
||||
- Include examples where appropriate
|
||||
- Document all public API functions, structs, and traits
|
||||
- Use Markdown formatting in doc comments and documentation files
|
||||
|
||||
## Priority Areas
|
||||
|
||||
We are particularly interested in contributions in these areas:
|
||||
|
||||
1. **Web UI Development**:
|
||||
- Creating a responsive, user-friendly interface for DNS management
|
||||
- Implementing dashboard components for monitoring DNS health
|
||||
- Building forms for record management with validation
|
||||
|
||||
2. **API Service**:
|
||||
- Implementing RESTful endpoints for DNS record CRUD operations
|
||||
- Adding authentication and authorization mechanisms
|
||||
- Developing batch operations for efficient record updates
|
||||
|
||||
3. **User Management**:
|
||||
- Building a role-based access control system
|
||||
- Implementing secure authentication flows
|
||||
- Creating administrative tools for user management
|
||||
|
||||
4. **Documentation**:
|
||||
- Improving guides and examples
|
||||
- Creating API documentation
|
||||
- Adding diagrams and architecture documentation
|
||||
|
||||
5. **Testing**:
|
||||
- Unit tests for core components
|
||||
- Integration tests for end-to-end validation
|
||||
- Building automated CI pipelines
|
||||
|
||||
## Community
|
||||
|
||||
- Join our [Discord server](https://discord.com/channels/1179651660184817714/1369586647393370253) for discussions
|
||||
- Follow the project on [Twitter](https://x.com/thakares)
|
||||
- Subscribe to our [mailing list](https://example.com/mailing-list) for updates
|
||||
|
||||
## License
|
||||
|
||||
By contributing to nx9-dns-server, you agree that your contributions will be licensed under the project's [GNU General Public License v3.0 (GPLv3)](LICENSE).
|
||||
|
||||
---
|
||||
|
||||
Thank you for your interest in improving nx9-dns-server! We appreciate your time and effort in contributing to this project.
|
||||
Generated
+1340
File diff suppressed because it is too large.
Load diff
+20
@@ -0,0 +1,20 @@
|
||||
# Cargo.toml
|
||||
[package]
|
||||
name = "nx9-dns-server"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
[dependencies]
|
||||
tokio = { version = "1.32", features = ["full"] }
|
||||
rusqlite = { version = "0.29", features = ["bundled"] }
|
||||
log = "0.4"
|
||||
env_logger = "0.10"
|
||||
thiserror = "1.0"
|
||||
hex = "0.4"
|
||||
base64 = "0.21"
|
||||
r2d2 = "0.8"
|
||||
r2d2_sqlite = "0.22"
|
||||
lru = "0.12"
|
||||
metrics = "0.21"
|
||||
metrics-exporter-prometheus = "0.12"
|
||||
chrono = "0.4"
|
||||
@@ -0,0 +1,57 @@
|
||||
# Build stage
|
||||
FROM rust:1.72-slim-bookworm AS builder
|
||||
|
||||
# Install necessary build dependencies
|
||||
RUN apt-get update && apt-get install -y \
|
||||
musl-tools \
|
||||
build-essential \
|
||||
pkg-config \
|
||||
libssl-dev \
|
||||
&& rm -rf /var/lib/apt/lists/*
|
||||
|
||||
# Add support for cross-compilation to Alpine
|
||||
RUN rustup target add x86_64-unknown-linux-musl
|
||||
|
||||
# Create a new empty project
|
||||
WORKDIR /app
|
||||
COPY . .
|
||||
|
||||
# Build the project with musl target
|
||||
RUN cargo build --target x86_64-unknown-linux-musl --release
|
||||
|
||||
# Runtime stage
|
||||
FROM alpine:3.18
|
||||
|
||||
# Install runtime dependencies
|
||||
RUN apk --no-cache add ca-certificates sqlite tzdata
|
||||
|
||||
# Create a non-root user for running the application
|
||||
RUN addgroup -S dns && adduser -S dnsuser -G dns
|
||||
|
||||
# Create necessary directories
|
||||
RUN mkdir -p /var/nx9-dns-server /var/log/nx9-dns-server /etc/nx9-dns-server
|
||||
RUN chown -R dnsuser:dns /var/nx9-dns-server /var/log/nx9-dns-server /etc/nx9-dns-server
|
||||
|
||||
# Copy the compiled binary
|
||||
COPY --from=builder /app/target/x86_64-unknown-linux-musl/release/dns_server /usr/local/bin/
|
||||
RUN chmod +x /usr/local/bin/dns_server
|
||||
|
||||
# Copy configuration files
|
||||
COPY --from=builder /app/conf/dns_records.sql /etc/nx9-dns-server/
|
||||
COPY --from=builder /app/conf/dns.db.sample /etc/nx9-dns-server/
|
||||
|
||||
# Expose DNS ports
|
||||
EXPOSE 53/udp 53/tcp
|
||||
# Expose Web UI port
|
||||
EXPOSE 8080/tcp
|
||||
# Expose API port
|
||||
EXPOSE 8081/tcp
|
||||
|
||||
# Set working directory
|
||||
WORKDIR /var/nx9-dns-server
|
||||
|
||||
# Switch to non-root user
|
||||
USER dnsuser
|
||||
|
||||
# Command to run the application
|
||||
CMD ["/usr/local/bin/dns_server"]
|
||||
@@ -0,0 +1,24 @@
|
||||
version: '3.8'
|
||||
|
||||
services:
|
||||
dns:
|
||||
image: nx9-dns-server:latest
|
||||
container_name: nx9-dns
|
||||
ports:
|
||||
- "53:53/udp"
|
||||
- "53:53/tcp"
|
||||
- "8080:8080"
|
||||
- "8081:8081"
|
||||
volumes:
|
||||
- ./data/dns.db:/var/nx9-dns-server/dns.db
|
||||
- ./keys:/etc/nx9-dns-server/keys
|
||||
- ./logs:/var/log/nx9-dns-server
|
||||
environment:
|
||||
- DNS_BIND=0.0.0.0:53
|
||||
- DNS_DB_PATH=/var/nx9-dns-server/dns.db
|
||||
- DNSSEC_KEY_FILE=/etc/nx9-dns-server/keys/Kanydomain.tld.key
|
||||
- DNS_FORWARDERS=8.8.8.8:53,1.1.1.1:53
|
||||
- DNS_NS_RECORDS=ns1.anydomain.tld.,ns2.anydomain.tld.
|
||||
- WEB_UI_BIND=0.0.0.0:8080
|
||||
- API_BIND=0.0.0.0:8081
|
||||
restart: unless-stopped
|
||||
+57
@@ -0,0 +1,57 @@
|
||||
# Build stage
|
||||
FROM rust:1.72-slim-bookworm AS builder
|
||||
|
||||
# Install necessary build dependencies
|
||||
RUN apt-get update && apt-get install -y \
|
||||
musl-tools \
|
||||
build-essential \
|
||||
pkg-config \
|
||||
libssl-dev \
|
||||
&& rm -rf /var/lib/apt/lists/*
|
||||
|
||||
# Add support for cross-compilation to Alpine
|
||||
RUN rustup target add x86_64-unknown-linux-musl
|
||||
|
||||
# Create a new empty project
|
||||
WORKDIR /app
|
||||
COPY . .
|
||||
|
||||
# Build the project with musl target
|
||||
RUN cargo build --target x86_64-unknown-linux-musl --release
|
||||
|
||||
# Runtime stage
|
||||
FROM alpine:3.18
|
||||
|
||||
# Install runtime dependencies
|
||||
RUN apk --no-cache add ca-certificates sqlite tzdata
|
||||
|
||||
# Create a non-root user for running the application
|
||||
RUN addgroup -S dns && adduser -S dnsuser -G dns
|
||||
|
||||
# Create necessary directories
|
||||
RUN mkdir -p /var/nx9-dns-server /var/log/nx9-dns-server /etc/nx9-dns-server
|
||||
RUN chown -R dnsuser:dns /var/nx9-dns-server /var/log/nx9-dns-server /etc/nx9-dns-server
|
||||
|
||||
# Copy the compiled binary
|
||||
COPY --from=builder /app/target/x86_64-unknown-linux-musl/release/dns_server /usr/local/bin/
|
||||
RUN chmod +x /usr/local/bin/dns_server
|
||||
|
||||
# Copy configuration files
|
||||
COPY --from=builder /app/conf/dns_records.sql /etc/nx9-dns-server/
|
||||
COPY --from=builder /app/conf/dns.db.sample /etc/nx9-dns-server/
|
||||
|
||||
# Expose DNS ports
|
||||
EXPOSE 53/udp 53/tcp
|
||||
# Expose Web UI port
|
||||
EXPOSE 8080/tcp
|
||||
# Expose API port
|
||||
EXPOSE 8081/tcp
|
||||
|
||||
# Set working directory
|
||||
WORKDIR /var/nx9-dns-server
|
||||
|
||||
# Switch to non-root user
|
||||
USER dnsuser
|
||||
|
||||
# Command to run the application
|
||||
CMD ["/usr/local/bin/dns_server"]
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 1.6 MiB |
@@ -0,0 +1,674 @@
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
Version 3, 29 June 2007
|
||||
|
||||
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
Preamble
|
||||
|
||||
The GNU General Public License is a free, copyleft license for
|
||||
software and other kinds of works.
|
||||
|
||||
The licenses for most software and other practical works are designed
|
||||
to take away your freedom to share and change the works. By contrast,
|
||||
the GNU General Public License is intended to guarantee your freedom to
|
||||
share and change all versions of a program--to make sure it remains free
|
||||
software for all its users. We, the Free Software Foundation, use the
|
||||
GNU General Public License for most of our software; it applies also to
|
||||
any other work released this way by its authors. You can apply it to
|
||||
your programs, too.
|
||||
|
||||
When we speak of free software, we are referring to freedom, not
|
||||
price. Our General Public Licenses are designed to make sure that you
|
||||
have the freedom to distribute copies of free software (and charge for
|
||||
them if you wish), that you receive source code or can get it if you
|
||||
want it, that you can change the software or use pieces of it in new
|
||||
free programs, and that you know you can do these things.
|
||||
|
||||
To protect your rights, we need to prevent others from denying you
|
||||
these rights or asking you to surrender the rights. Therefore, you have
|
||||
certain responsibilities if you distribute copies of the software, or if
|
||||
you modify it: responsibilities to respect the freedom of others.
|
||||
|
||||
For example, if you distribute copies of such a program, whether
|
||||
gratis or for a fee, you must pass on to the recipients the same
|
||||
freedoms that you received. You must make sure that they, too, receive
|
||||
or can get the source code. And you must show them these terms so they
|
||||
know their rights.
|
||||
|
||||
Developers that use the GNU GPL protect your rights with two steps:
|
||||
(1) assert copyright on the software, and (2) offer you this License
|
||||
giving you legal permission to copy, distribute and/or modify it.
|
||||
|
||||
For the developers' and authors' protection, the GPL clearly explains
|
||||
that there is no warranty for this free software. For both users' and
|
||||
authors' sake, the GPL requires that modified versions be marked as
|
||||
changed, so that their problems will not be attributed erroneously to
|
||||
authors of previous versions.
|
||||
|
||||
Some devices are designed to deny users access to install or run
|
||||
modified versions of the software inside them, although the manufacturer
|
||||
can do so. This is fundamentally incompatible with the aim of
|
||||
protecting users' freedom to change the software. The systematic
|
||||
pattern of such abuse occurs in the area of products for individuals to
|
||||
use, which is precisely where it is most unacceptable. Therefore, we
|
||||
have designed this version of the GPL to prohibit the practice for those
|
||||
products. If such problems arise substantially in other domains, we
|
||||
stand ready to extend this provision to those domains in future versions
|
||||
of the GPL, as needed to protect the freedom of users.
|
||||
|
||||
Finally, every program is threatened constantly by software patents.
|
||||
States should not allow patents to restrict development and use of
|
||||
software on general-purpose computers, but in those that do, we wish to
|
||||
avoid the special danger that patents applied to a free program could
|
||||
make it effectively proprietary. To prevent this, the GPL assures that
|
||||
patents cannot be used to render the program non-free.
|
||||
|
||||
The precise terms and conditions for copying, distribution and
|
||||
modification follow.
|
||||
|
||||
TERMS AND CONDITIONS
|
||||
|
||||
0. Definitions.
|
||||
|
||||
"This License" refers to version 3 of the GNU General Public License.
|
||||
|
||||
"Copyright" also means copyright-like laws that apply to other kinds of
|
||||
works, such as semiconductor masks.
|
||||
|
||||
"The Program" refers to any copyrightable work licensed under this
|
||||
License. Each licensee is addressed as "you". "Licensees" and
|
||||
"recipients" may be individuals or organizations.
|
||||
|
||||
To "modify" a work means to copy from or adapt all or part of the work
|
||||
in a fashion requiring copyright permission, other than the making of an
|
||||
exact copy. The resulting work is called a "modified version" of the
|
||||
earlier work or a work "based on" the earlier work.
|
||||
|
||||
A "covered work" means either the unmodified Program or a work based
|
||||
on the Program.
|
||||
|
||||
To "propagate" a work means to do anything with it that, without
|
||||
permission, would make you directly or secondarily liable for
|
||||
infringement under applicable copyright law, except executing it on a
|
||||
computer or modifying a private copy. Propagation includes copying,
|
||||
distribution (with or without modification), making available to the
|
||||
public, and in some countries other activities as well.
|
||||
|
||||
To "convey" a work means any kind of propagation that enables other
|
||||
parties to make or receive copies. Mere interaction with a user through
|
||||
a computer network, with no transfer of a copy, is not conveying.
|
||||
|
||||
An interactive user interface displays "Appropriate Legal Notices"
|
||||
to the extent that it includes a convenient and prominently visible
|
||||
feature that (1) displays an appropriate copyright notice, and (2)
|
||||
tells the user that there is no warranty for the work (except to the
|
||||
extent that warranties are provided), that licensees may convey the
|
||||
work under this License, and how to view a copy of this License. If
|
||||
the interface presents a list of user commands or options, such as a
|
||||
menu, a prominent item in the list meets this criterion.
|
||||
|
||||
1. Source Code.
|
||||
|
||||
The "source code" for a work means the preferred form of the work
|
||||
for making modifications to it. "Object code" means any non-source
|
||||
form of a work.
|
||||
|
||||
A "Standard Interface" means an interface that either is an official
|
||||
standard defined by a recognized standards body, or, in the case of
|
||||
interfaces specified for a particular programming language, one that
|
||||
is widely used among developers working in that language.
|
||||
|
||||
The "System Libraries" of an executable work include anything, other
|
||||
than the work as a whole, that (a) is included in the normal form of
|
||||
packaging a Major Component, but which is not part of that Major
|
||||
Component, and (b) serves only to enable use of the work with that
|
||||
Major Component, or to implement a Standard Interface for which an
|
||||
implementation is available to the public in source code form. A
|
||||
"Major Component", in this context, means a major essential component
|
||||
(kernel, window system, and so on) of the specific operating system
|
||||
(if any) on which the executable work runs, or a compiler used to
|
||||
produce the work, or an object code interpreter used to run it.
|
||||
|
||||
The "Corresponding Source" for a work in object code form means all
|
||||
the source code needed to generate, install, and (for an executable
|
||||
work) run the object code and to modify the work, including scripts to
|
||||
control those activities. However, it does not include the work's
|
||||
System Libraries, or general-purpose tools or generally available free
|
||||
programs which are used unmodified in performing those activities but
|
||||
which are not part of the work. For example, Corresponding Source
|
||||
includes interface definition files associated with source files for
|
||||
the work, and the source code for shared libraries and dynamically
|
||||
linked subprograms that the work is specifically designed to require,
|
||||
such as by intimate data communication or control flow between those
|
||||
subprograms and other parts of the work.
|
||||
|
||||
The Corresponding Source need not include anything that users
|
||||
can regenerate automatically from other parts of the Corresponding
|
||||
Source.
|
||||
|
||||
The Corresponding Source for a work in source code form is that
|
||||
same work.
|
||||
|
||||
2. Basic Permissions.
|
||||
|
||||
All rights granted under this License are granted for the term of
|
||||
copyright on the Program, and are irrevocable provided the stated
|
||||
conditions are met. This License explicitly affirms your unlimited
|
||||
permission to run the unmodified Program. The output from running a
|
||||
covered work is covered by this License only if the output, given its
|
||||
content, constitutes a covered work. This License acknowledges your
|
||||
rights of fair use or other equivalent, as provided by copyright law.
|
||||
|
||||
You may make, run and propagate covered works that you do not
|
||||
convey, without conditions so long as your license otherwise remains
|
||||
in force. You may convey covered works to others for the sole purpose
|
||||
of having them make modifications exclusively for you, or provide you
|
||||
with facilities for running those works, provided that you comply with
|
||||
the terms of this License in conveying all material for which you do
|
||||
not control copyright. Those thus making or running the covered works
|
||||
for you must do so exclusively on your behalf, under your direction
|
||||
and control, on terms that prohibit them from making any copies of
|
||||
your copyrighted material outside their relationship with you.
|
||||
|
||||
Conveying under any other circumstances is permitted solely under
|
||||
the conditions stated below. Sublicensing is not allowed; section 10
|
||||
makes it unnecessary.
|
||||
|
||||
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
|
||||
|
||||
No covered work shall be deemed part of an effective technological
|
||||
measure under any applicable law fulfilling obligations under article
|
||||
11 of the WIPO copyright treaty adopted on 20 December 1996, or
|
||||
similar laws prohibiting or restricting circumvention of such
|
||||
measures.
|
||||
|
||||
When you convey a covered work, you waive any legal power to forbid
|
||||
circumvention of technological measures to the extent such circumvention
|
||||
is effected by exercising rights under this License with respect to
|
||||
the covered work, and you disclaim any intention to limit operation or
|
||||
modification of the work as a means of enforcing, against the work's
|
||||
users, your or third parties' legal rights to forbid circumvention of
|
||||
technological measures.
|
||||
|
||||
4. Conveying Verbatim Copies.
|
||||
|
||||
You may convey verbatim copies of the Program's source code as you
|
||||
receive it, in any medium, provided that you conspicuously and
|
||||
appropriately publish on each copy an appropriate copyright notice;
|
||||
keep intact all notices stating that this License and any
|
||||
non-permissive terms added in accord with section 7 apply to the code;
|
||||
keep intact all notices of the absence of any warranty; and give all
|
||||
recipients a copy of this License along with the Program.
|
||||
|
||||
You may charge any price or no price for each copy that you convey,
|
||||
and you may offer support or warranty protection for a fee.
|
||||
|
||||
5. Conveying Modified Source Versions.
|
||||
|
||||
You may convey a work based on the Program, or the modifications to
|
||||
produce it from the Program, in the form of source code under the
|
||||
terms of section 4, provided that you also meet all of these conditions:
|
||||
|
||||
a) The work must carry prominent notices stating that you modified
|
||||
it, and giving a relevant date.
|
||||
|
||||
b) The work must carry prominent notices stating that it is
|
||||
released under this License and any conditions added under section
|
||||
7. This requirement modifies the requirement in section 4 to
|
||||
"keep intact all notices".
|
||||
|
||||
c) You must license the entire work, as a whole, under this
|
||||
License to anyone who comes into possession of a copy. This
|
||||
License will therefore apply, along with any applicable section 7
|
||||
additional terms, to the whole of the work, and all its parts,
|
||||
regardless of how they are packaged. This License gives no
|
||||
permission to license the work in any other way, but it does not
|
||||
invalidate such permission if you have separately received it.
|
||||
|
||||
d) If the work has interactive user interfaces, each must display
|
||||
Appropriate Legal Notices; however, if the Program has interactive
|
||||
interfaces that do not display Appropriate Legal Notices, your
|
||||
work need not make them do so.
|
||||
|
||||
A compilation of a covered work with other separate and independent
|
||||
works, which are not by their nature extensions of the covered work,
|
||||
and which are not combined with it such as to form a larger program,
|
||||
in or on a volume of a storage or distribution medium, is called an
|
||||
"aggregate" if the compilation and its resulting copyright are not
|
||||
used to limit the access or legal rights of the compilation's users
|
||||
beyond what the individual works permit. Inclusion of a covered work
|
||||
in an aggregate does not cause this License to apply to the other
|
||||
parts of the aggregate.
|
||||
|
||||
6. Conveying Non-Source Forms.
|
||||
|
||||
You may convey a covered work in object code form under the terms
|
||||
of sections 4 and 5, provided that you also convey the
|
||||
machine-readable Corresponding Source under the terms of this License,
|
||||
in one of these ways:
|
||||
|
||||
a) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by the
|
||||
Corresponding Source fixed on a durable physical medium
|
||||
customarily used for software interchange.
|
||||
|
||||
b) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by a
|
||||
written offer, valid for at least three years and valid for as
|
||||
long as you offer spare parts or customer support for that product
|
||||
model, to give anyone who possesses the object code either (1) a
|
||||
copy of the Corresponding Source for all the software in the
|
||||
product that is covered by this License, on a durable physical
|
||||
medium customarily used for software interchange, for a price no
|
||||
more than your reasonable cost of physically performing this
|
||||
conveying of source, or (2) access to copy the
|
||||
Corresponding Source from a network server at no charge.
|
||||
|
||||
c) Convey individual copies of the object code with a copy of the
|
||||
written offer to provide the Corresponding Source. This
|
||||
alternative is allowed only occasionally and noncommercially, and
|
||||
only if you received the object code with such an offer, in accord
|
||||
with subsection 6b.
|
||||
|
||||
d) Convey the object code by offering access from a designated
|
||||
place (gratis or for a charge), and offer equivalent access to the
|
||||
Corresponding Source in the same way through the same place at no
|
||||
further charge. You need not require recipients to copy the
|
||||
Corresponding Source along with the object code. If the place to
|
||||
copy the object code is a network server, the Corresponding Source
|
||||
may be on a different server (operated by you or a third party)
|
||||
that supports equivalent copying facilities, provided you maintain
|
||||
clear directions next to the object code saying where to find the
|
||||
Corresponding Source. Regardless of what server hosts the
|
||||
Corresponding Source, you remain obligated to ensure that it is
|
||||
available for as long as needed to satisfy these requirements.
|
||||
|
||||
e) Convey the object code using peer-to-peer transmission, provided
|
||||
you inform other peers where the object code and Corresponding
|
||||
Source of the work are being offered to the general public at no
|
||||
charge under subsection 6d.
|
||||
|
||||
A separable portion of the object code, whose source code is excluded
|
||||
from the Corresponding Source as a System Library, need not be
|
||||
included in conveying the object code work.
|
||||
|
||||
A "User Product" is either (1) a "consumer product", which means any
|
||||
tangible personal property which is normally used for personal, family,
|
||||
or household purposes, or (2) anything designed or sold for incorporation
|
||||
into a dwelling. In determining whether a product is a consumer product,
|
||||
doubtful cases shall be resolved in favor of coverage. For a particular
|
||||
product received by a particular user, "normally used" refers to a
|
||||
typical or common use of that class of product, regardless of the status
|
||||
of the particular user or of the way in which the particular user
|
||||
actually uses, or expects or is expected to use, the product. A product
|
||||
is a consumer product regardless of whether the product has substantial
|
||||
commercial, industrial or non-consumer uses, unless such uses represent
|
||||
the only significant mode of use of the product.
|
||||
|
||||
"Installation Information" for a User Product means any methods,
|
||||
procedures, authorization keys, or other information required to install
|
||||
and execute modified versions of a covered work in that User Product from
|
||||
a modified version of its Corresponding Source. The information must
|
||||
suffice to ensure that the continued functioning of the modified object
|
||||
code is in no case prevented or interfered with solely because
|
||||
modification has been made.
|
||||
|
||||
If you convey an object code work under this section in, or with, or
|
||||
specifically for use in, a User Product, and the conveying occurs as
|
||||
part of a transaction in which the right of possession and use of the
|
||||
User Product is transferred to the recipient in perpetuity or for a
|
||||
fixed term (regardless of how the transaction is characterized), the
|
||||
Corresponding Source conveyed under this section must be accompanied
|
||||
by the Installation Information. But this requirement does not apply
|
||||
if neither you nor any third party retains the ability to install
|
||||
modified object code on the User Product (for example, the work has
|
||||
been installed in ROM).
|
||||
|
||||
The requirement to provide Installation Information does not include a
|
||||
requirement to continue to provide support service, warranty, or updates
|
||||
for a work that has been modified or installed by the recipient, or for
|
||||
the User Product in which it has been modified or installed. Access to a
|
||||
network may be denied when the modification itself materially and
|
||||
adversely affects the operation of the network or violates the rules and
|
||||
protocols for communication across the network.
|
||||
|
||||
Corresponding Source conveyed, and Installation Information provided,
|
||||
in accord with this section must be in a format that is publicly
|
||||
documented (and with an implementation available to the public in
|
||||
source code form), and must require no special password or key for
|
||||
unpacking, reading or copying.
|
||||
|
||||
7. Additional Terms.
|
||||
|
||||
"Additional permissions" are terms that supplement the terms of this
|
||||
License by making exceptions from one or more of its conditions.
|
||||
Additional permissions that are applicable to the entire Program shall
|
||||
be treated as though they were included in this License, to the extent
|
||||
that they are valid under applicable law. If additional permissions
|
||||
apply only to part of the Program, that part may be used separately
|
||||
under those permissions, but the entire Program remains governed by
|
||||
this License without regard to the additional permissions.
|
||||
|
||||
When you convey a copy of a covered work, you may at your option
|
||||
remove any additional permissions from that copy, or from any part of
|
||||
it. (Additional permissions may be written to require their own
|
||||
removal in certain cases when you modify the work.) You may place
|
||||
additional permissions on material, added by you to a covered work,
|
||||
for which you have or can give appropriate copyright permission.
|
||||
|
||||
Notwithstanding any other provision of this License, for material you
|
||||
add to a covered work, you may (if authorized by the copyright holders of
|
||||
that material) supplement the terms of this License with terms:
|
||||
|
||||
a) Disclaiming warranty or limiting liability differently from the
|
||||
terms of sections 15 and 16 of this License; or
|
||||
|
||||
b) Requiring preservation of specified reasonable legal notices or
|
||||
author attributions in that material or in the Appropriate Legal
|
||||
Notices displayed by works containing it; or
|
||||
|
||||
c) Prohibiting misrepresentation of the origin of that material, or
|
||||
requiring that modified versions of such material be marked in
|
||||
reasonable ways as different from the original version; or
|
||||
|
||||
d) Limiting the use for publicity purposes of names of licensors or
|
||||
authors of the material; or
|
||||
|
||||
e) Declining to grant rights under trademark law for use of some
|
||||
trade names, trademarks, or service marks; or
|
||||
|
||||
f) Requiring indemnification of licensors and authors of that
|
||||
material by anyone who conveys the material (or modified versions of
|
||||
it) with contractual assumptions of liability to the recipient, for
|
||||
any liability that these contractual assumptions directly impose on
|
||||
those licensors and authors.
|
||||
|
||||
All other non-permissive additional terms are considered "further
|
||||
restrictions" within the meaning of section 10. If the Program as you
|
||||
received it, or any part of it, contains a notice stating that it is
|
||||
governed by this License along with a term that is a further
|
||||
restriction, you may remove that term. If a license document contains
|
||||
a further restriction but permits relicensing or conveying under this
|
||||
License, you may add to a covered work material governed by the terms
|
||||
of that license document, provided that the further restriction does
|
||||
not survive such relicensing or conveying.
|
||||
|
||||
If you add terms to a covered work in accord with this section, you
|
||||
must place, in the relevant source files, a statement of the
|
||||
additional terms that apply to those files, or a notice indicating
|
||||
where to find the applicable terms.
|
||||
|
||||
Additional terms, permissive or non-permissive, may be stated in the
|
||||
form of a separately written license, or stated as exceptions;
|
||||
the above requirements apply either way.
|
||||
|
||||
8. Termination.
|
||||
|
||||
You may not propagate or modify a covered work except as expressly
|
||||
provided under this License. Any attempt otherwise to propagate or
|
||||
modify it is void, and will automatically terminate your rights under
|
||||
this License (including any patent licenses granted under the third
|
||||
paragraph of section 11).
|
||||
|
||||
However, if you cease all violation of this License, then your
|
||||
license from a particular copyright holder is reinstated (a)
|
||||
provisionally, unless and until the copyright holder explicitly and
|
||||
finally terminates your license, and (b) permanently, if the copyright
|
||||
holder fails to notify you of the violation by some reasonable means
|
||||
prior to 60 days after the cessation.
|
||||
|
||||
Moreover, your license from a particular copyright holder is
|
||||
reinstated permanently if the copyright holder notifies you of the
|
||||
violation by some reasonable means, this is the first time you have
|
||||
received notice of violation of this License (for any work) from that
|
||||
copyright holder, and you cure the violation prior to 30 days after
|
||||
your receipt of the notice.
|
||||
|
||||
Termination of your rights under this section does not terminate the
|
||||
licenses of parties who have received copies or rights from you under
|
||||
this License. If your rights have been terminated and not permanently
|
||||
reinstated, you do not qualify to receive new licenses for the same
|
||||
material under section 10.
|
||||
|
||||
9. Acceptance Not Required for Having Copies.
|
||||
|
||||
You are not required to accept this License in order to receive or
|
||||
run a copy of the Program. Ancillary propagation of a covered work
|
||||
occurring solely as a consequence of using peer-to-peer transmission
|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. Use with the GNU Affero General Public License.
|
||||
|
||||
Notwithstanding any other provision of this License, you have
|
||||
permission to link or combine any covered work with a work licensed
|
||||
under version 3 of the GNU Affero General Public License into a single
|
||||
combined work, and to convey the resulting work. The terms of this
|
||||
License will continue to apply to the part which is the covered work,
|
||||
but the special requirements of the GNU Affero General Public License,
|
||||
section 13, concerning interaction through a network will apply to the
|
||||
combination as such.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of
|
||||
the GNU General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the
|
||||
Program specifies that a certain numbered version of the GNU General
|
||||
Public License "or any later version" applies to it, you have the
|
||||
option of following the terms and conditions either of that numbered
|
||||
version or of any later version published by the Free Software
|
||||
Foundation. If the Program does not specify a version number of the
|
||||
GNU General Public License, you may choose any version ever published
|
||||
by the Free Software Foundation.
|
||||
|
||||
If the Program specifies that a proxy can decide which future
|
||||
versions of the GNU General Public License can be used, that proxy's
|
||||
public statement of acceptance of a version permanently authorizes you
|
||||
to choose that version for the Program.
|
||||
|
||||
Later license versions may give you additional or different
|
||||
permissions. However, no additional obligations are imposed on any
|
||||
author or copyright holder as a result of your choosing to follow a
|
||||
later version.
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. Limitation of Liability.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGES.
|
||||
|
||||
17. Interpretation of Sections 15 and 16.
|
||||
|
||||
If the disclaimer of warranty and limitation of liability provided
|
||||
above cannot be given local legal effect according to their terms,
|
||||
reviewing courts shall apply local law that most closely approximates
|
||||
an absolute waiver of all civil liability in connection with the
|
||||
Program, unless a warranty or assumption of liability accompanies a
|
||||
copy of the Program in return for a fee.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
state the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program does terminal interaction, make it output a short
|
||||
notice like this when it starts in an interactive mode:
|
||||
|
||||
<program> Copyright (C) <year> <name of author>
|
||||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, your program's commands
|
||||
might be different; for a GUI interface, you would use an "about box".
|
||||
|
||||
You should also get your employer (if you work as a programmer) or school,
|
||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||
For more information on this, and how to apply and follow the GNU GPL, see
|
||||
<https://www.gnu.org/licenses/>.
|
||||
|
||||
The GNU General Public License does not permit incorporating your program
|
||||
into proprietary programs. If your program is a subroutine library, you
|
||||
may consider it more useful to permit linking proprietary applications with
|
||||
the library. If this is what you want to do, use the GNU Lesser General
|
||||
Public License instead of this License. But first, please read
|
||||
<https://www.gnu.org/licenses/why-not-lgpl.html>.
|
||||
@@ -0,0 +1,575 @@
|
||||
# nx9-dns-server
|
||||
|
||||
**nx9-dns-server** is a high-performance, RFC-compliant authoritative DNS server implemented in Rust. It is designed for any domain (e.g., `anydomain.tld`), supporting a wide range of DNS record types, DNSSEC, and robust operational features. The server is optimized for reliability, security, and ease of deployment in production environments.
|
||||
|
||||
---
|
||||
|
||||
## Table of Contents
|
||||
|
||||
- [Features](#features)
|
||||
- [Architecture](#architecture)
|
||||
- [DNS Record Management](#dns-record-management)
|
||||
- [Web UI](#web-ui)
|
||||
- [API Service](#api-service)
|
||||
- [User Management](#user-management)
|
||||
- [DNSSEC Support](#dnssec-support)
|
||||
- [How to Create DNSSEC_KEY_FILE](#how-to-create-dnssec_key_file)
|
||||
- [Deployment](#deployment)
|
||||
- [Traditional Deployment](#traditional-deployment)
|
||||
- [Docker Deployment](#docker-deployment)
|
||||
- [Configuration](#configuration)
|
||||
- [Testing & Diagnostics](#testing--diagnostics)
|
||||
- [Roadmap](#roadmap)
|
||||
- [Contributing](#contributing)
|
||||
- [License](#license)
|
||||
- [Acknowledgements](#acknowledgements)
|
||||
|
||||
---
|
||||
|
||||
## Features
|
||||
|
||||
- **Authoritative DNS**: Serves authoritative responses for all queries to your domain (e.g., `anydomain.tld`).
|
||||
- **Multi-Record Support**: Handles A, AAAA, MX, NS, SOA, PTR, TXT, and CNAME records.
|
||||
- **DNSSEC Ready**: Supports DNSSEC key management and secure record signing.
|
||||
- **High Performance**: Asynchronous networking (UDP/TCP) via Tokio for handling thousands of concurrent queries.
|
||||
- **RFC Compliance**: Strict adherence to DNS protocol standards for interoperability.
|
||||
- **Extensible Storage**: Uses SQLite for DNS record storage, allowing easy updates and migrations.
|
||||
- **Easy Deployment**: Includes deployment and update scripts for smooth operational workflows.
|
||||
- **Comprehensive Logging**: Integrates with `env_logger` for detailed runtime diagnostics.
|
||||
- **Web Interface**: (Coming soon) Administrative web UI for DNS record management.
|
||||
- **API Service**: (Coming soon) RESTful API service for programmatic DNS record management.
|
||||
- **User Management**: (Coming soon) Multi-user access control with role-based permissions.
|
||||
|
||||
---
|
||||
|
||||
## Architecture
|
||||
|
||||
- **Language**: Rust (2021 edition)
|
||||
- **Async Runtime**: [Tokio](https://tokio.rs/)
|
||||
- **Database**: SQLite via [rusqlite](https://crates.io/crates/rusqlite)
|
||||
- **Logging**: [log](https://crates.io/crates/log) and [env_logger](https://crates.io/crates/env_logger)
|
||||
- **Error Handling**: [thiserror](https://crates.io/crates/thiserror)
|
||||
- **DNSSEC**: Built-in support for key loading and RRSIG/DS/DNSKEY records
|
||||
- **Web Framework**: (Coming soon) [Rocket](https://rocket.rs/) or [Axum](https://github.com/tokio-rs/axum) for UI and API endpoints
|
||||
- **Authentication**: (Coming soon) JWT-based authentication and role-based authorization
|
||||
- **Containerization**: Docker support with Alpine Linux for minimal footprint
|
||||
- **Cross-Compilation**: Support for building from Debian to Alpine Linux (musl) target
|
||||
|
||||
---
|
||||
|
||||
## DNS Record Management
|
||||
|
||||
DNS records are managed in an SQLite database (`dns.db`). The schema supports multiple records per domain and type, and can be easily updated using SQL scripts.
|
||||
|
||||
**Example schema (`dns_records.sql`):**
|
||||
```sql
|
||||
CREATE TABLE IF NOT EXISTS dns_records (
|
||||
domain TEXT NOT NULL,
|
||||
record_type TEXT NOT NULL,
|
||||
value TEXT NOT NULL,
|
||||
ttl INTEGER DEFAULT 3600,
|
||||
PRIMARY KEY (domain, record_type, value)
|
||||
) WITHOUT ROWID;
|
||||
```
|
||||
|
||||
**Sample records:**
|
||||
```sql
|
||||
INSERT OR REPLACE INTO dns_records VALUES
|
||||
('anydomain.tld', 'A', '203.0.113.10', 3600),
|
||||
('anydomain.tld', 'MX', '10 mail.anydomain.tld', 3600),
|
||||
('anydomain.tld', 'NS', 'ns1.anydomain.tld', 3600),
|
||||
('anydomain.tld', 'NS', 'ns2.anydomain.tld', 3600),
|
||||
('anydomain.tld', 'SOA', 'ns1.anydomain.tld hostmaster.anydomain.tld 1 10800 3600 604800 86400', 3600),
|
||||
('anydomain.tld', 'TXT', '"v=spf1 a mx ~all"', 3600),
|
||||
('www.anydomain.tld', 'A', '203.0.113.10', 3600);
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Web UI
|
||||
|
||||
> 🚧 **Under Development - Seeking Contributors!** 🚧
|
||||
>
|
||||
> We're actively looking for community contributions to our Web UI implementation. If you have experience with Rust web frameworks (Rocket/Axum) and modern frontend technologies (React/Vue/Svelte), please consider contributing!
|
||||
|
||||
The planned Web UI will provide:
|
||||
|
||||
- **Dashboard**: Visual overview of DNS zone statistics and recent queries
|
||||
- **Record Management**: Intuitive interface for creating, viewing, updating, and deleting DNS records
|
||||
- **DNSSEC Management**: UI for key generation, rotation, and signature verification
|
||||
- **Audit Logging**: Visual timeline of all record changes with user attribution
|
||||
- **Responsive Design**: Mobile-friendly interface for management on any device
|
||||
|
||||
**Tech Stack (Proposed):**
|
||||
- Backend: Rust with Rocket or Axum
|
||||
- Frontend: TypeScript with React or Svelte
|
||||
- Authentication: JWT-based with session management
|
||||
|
||||
**Contribution Areas:**
|
||||
- UI/UX design mockups
|
||||
- Frontend component development
|
||||
- API integration
|
||||
- Automated testing
|
||||
- Documentation
|
||||
|
||||
If interested in contributing, please open an issue discussing your implementation approach before submitting PRs.
|
||||
|
||||
---
|
||||
|
||||
## API Service
|
||||
|
||||
> 🚧 **Under Development - Seeking Contributors!** 🚧
|
||||
>
|
||||
> We're building a RESTful API service for programmatic DNS record management. Contributors with experience in API design and Rust web services are welcome!
|
||||
|
||||
The DNS record management API will provide:
|
||||
|
||||
- **Full CRUD Operations**: Create, read, update, and delete DNS records via REST endpoints
|
||||
- **Batch Operations**: Support for bulk record changes in a single request
|
||||
- **Validation**: Strict validation of record syntax and domain integrity
|
||||
- **Rate Limiting**: Protection against API abuse
|
||||
- **Authentication**: Secure token-based authentication with scoped permissions
|
||||
- **Webhooks**: (Planned) Event notifications for record changes
|
||||
|
||||
**Planned Endpoints:**
|
||||
```
|
||||
GET /api/v1/zones # List all zones
|
||||
POST /api/v1/zones # Create new zone
|
||||
GET /api/v1/zones/{zone} # Get zone details
|
||||
PUT /api/v1/zones/{zone} # Update zone properties
|
||||
DELETE /api/v1/zones/{zone} # Remove zone
|
||||
|
||||
GET /api/v1/zones/{zone}/records # List all records in zone
|
||||
POST /api/v1/zones/{zone}/records # Create new record
|
||||
GET /api/v1/zones/{zone}/records/{id} # Get record details
|
||||
PUT /api/v1/zones/{zone}/records/{id} # Update record
|
||||
DELETE /api/v1/zones/{zone}/records/{id} # Remove record
|
||||
|
||||
POST /api/v1/zones/{zone}/records/batch # Batch create/update/delete
|
||||
```
|
||||
|
||||
If you're interested in contributing to the API service, please refer to our API design document in the project wiki.
|
||||
|
||||
---
|
||||
|
||||
## User Management
|
||||
|
||||
> 🚧 **Under Development - Community Input Requested!** 🚧
|
||||
>
|
||||
> We're designing a user management system and need input from the community on requirements and features.
|
||||
|
||||
Planned user management features:
|
||||
|
||||
- **Multi-User Support**: Multiple administrator and operator accounts
|
||||
- **Role-Based Access Control**: Granular permissions for different user roles
|
||||
- **Authentication Options**: Local accounts and potential OAuth/LDAP integration
|
||||
- **Audit Trail**: Comprehensive logging of all user actions
|
||||
- **Password Policies**: Configurable password requirements and rotation policies
|
||||
- **Two-Factor Authentication**: Additional security layer for administrative access
|
||||
- **API Tokens**: Management of scoped API tokens for programmatic access
|
||||
|
||||
**User Roles (Proposed):**
|
||||
- **Administrator**: Full system access
|
||||
- **Operator**: Can manage DNS records but not system settings
|
||||
- **Viewer**: Read-only access to records and statistics
|
||||
- **API Client**: Programmatic access via API tokens
|
||||
|
||||
**We welcome community input on:**
|
||||
- Authentication mechanisms
|
||||
- Additional role definitions and permission scopes
|
||||
- UI/UX design for user management interfaces
|
||||
- Enterprise integration requirements
|
||||
|
||||
Please open an issue with the tag `user-management` to share your feedback and requirements.
|
||||
|
||||
---
|
||||
|
||||
## DNSSEC Support
|
||||
|
||||
- **Key Management**: DNSSEC keys are loaded from environment-configured paths.
|
||||
- **Record Signing**: Supports RRSIG, DS, and DNSKEY records for secure, signed DNS responses.
|
||||
- **Preprocessing**: Key files can be preprocessed using provided scripts before deployment.
|
||||
|
||||
---
|
||||
|
||||
## How to Create `DNSSEC_KEY_FILE`
|
||||
|
||||
To enable DNSSEC for `nx9-dns-server`, you need to generate a DNSSEC key pair and provide the public key file to the server via the `DNSSEC_KEY_FILE` environment variable. Here's how you can do it using [BIND's dnssec-keygen tool](https://bind9.readthedocs.io/en/latest/reference.html#dnssec-keygen):
|
||||
|
||||
### 1. Install `dnssec-keygen`
|
||||
|
||||
On most Linux systems, you can install it via the package manager:
|
||||
|
||||
```bash
|
||||
sudo apt-get install bind9-dnsutils # Debian/Ubuntu
|
||||
# or
|
||||
sudo yum install bind-utils # CentOS/RHEL
|
||||
```
|
||||
|
||||
### 2. Generate DNSSEC Key Pair
|
||||
|
||||
Run the following command to generate a 2048-bit RSA key for your domain (replace `anydomain.tld` with your actual domain):
|
||||
|
||||
```bash
|
||||
dnssec-keygen -a RSASHA256 -b 2048 -n ZONE anydomain.tld
|
||||
```
|
||||
|
||||
- This will produce two files in your current directory:
|
||||
- `K.+008+.key` (public key)
|
||||
- `K.+008+.private` (private key)
|
||||
|
||||
### 3. Set the `DNSSEC_KEY_FILE` Environment Variable
|
||||
|
||||
Copy the public key file (`.key`) to your server's key directory (e.g., `/var/nx9-dns-server/`):
|
||||
|
||||
```bash
|
||||
cp Kanydomain.tld.+008+24550.key /var/nx9-dns-server/
|
||||
```
|
||||
|
||||
Then, set the environment variable in your deployment environment or systemd service:
|
||||
|
||||
```bash
|
||||
export DNSSEC_KEY_FILE="/var/nx9-dns-server/Kanydomain.tld.+008+24550.key"
|
||||
```
|
||||
|
||||
Or in your systemd unit file:
|
||||
```
|
||||
Environment="DNSSEC_KEY_FILE=/var/nx9-dns-server/Kanydomain.tld.+008+24550.key"
|
||||
```
|
||||
|
||||
### 4. (Optional) Preprocess the Key
|
||||
|
||||
If your deployment uses a preprocessing script (as referenced in your `deploy.sh`), run:
|
||||
|
||||
```bash
|
||||
sudo chmod +x /var/nx9-dns-server/preprocess-key.sh
|
||||
sudo -u dnsuser /var/nx9-dns-server/preprocess-key.sh
|
||||
```
|
||||
This may normalize the key format or permissions as required by your server.
|
||||
|
||||
### 5. Restart the DNS Server
|
||||
|
||||
After setting the key file, restart your DNS server to load the new key:
|
||||
|
||||
```bash
|
||||
sudo systemctl restart dns-server.service
|
||||
```
|
||||
|
||||
### 6. Verify DNSSEC is Working
|
||||
|
||||
Use the provided `dnscheck.sh` script or `dig` to verify DNSSEC records:
|
||||
|
||||
```bash
|
||||
bash dnscheck.sh
|
||||
# or manually:
|
||||
dig @localhost anydomain.tld DNSKEY +dnssec
|
||||
```
|
||||
|
||||
**Note:**
|
||||
- Keep your `.private` key file secure and never expose it publicly.
|
||||
- Only the `.key` (public) file should be referenced by the server.
|
||||
- The server will load and use the public key for signing DNS responses.
|
||||
|
||||
---
|
||||
|
||||
## Deployment
|
||||
|
||||
### Traditional Deployment
|
||||
|
||||
Deployment is automated and robust, using the provided [`deploy.sh`](deploy.sh) script. This script handles permissions, key preprocessing, SOA updates, binary replacement, and service management.
|
||||
|
||||
**Typical deployment steps:**
|
||||
```bash
|
||||
#!/bin/bash
|
||||
|
||||
set -e
|
||||
|
||||
SRC_BIN="/home/youruser/apps/your-ddns/dns_server"
|
||||
DEST_DIR="/var/nx9-dns-server"
|
||||
DEST_BIN="$DEST_DIR/dns_server"
|
||||
PREPROCESS_SCRIPT="$DEST_DIR/preprocess-key.sh"
|
||||
SOA_UPDATE_SCRIPT="$DEST_DIR/soa-update.sh"
|
||||
|
||||
echo "🔐 Fixing permissions and running preprocess..."
|
||||
sudo chmod +x "$PREPROCESS_SCRIPT"
|
||||
sudo -u dnsuser "$PREPROCESS_SCRIPT"
|
||||
|
||||
echo "🛠 Updating SOA record..."
|
||||
sudo chown dnsuser:dnsuser "$SOA_UPDATE_SCRIPT"
|
||||
sudo chmod +x "$SOA_UPDATE_SCRIPT"
|
||||
sudo -u dnsuser "$SOA_UPDATE_SCRIPT"
|
||||
|
||||
echo "📄 Verifying processed.key content..."
|
||||
sudo cat "$DEST_DIR/processed.key"
|
||||
|
||||
echo "🛑 Stopping DNS server..."
|
||||
sudo systemctl stop dns-server.service
|
||||
|
||||
echo "📦 Deploying new dns_server binary..."
|
||||
sudo cp "$SRC_BIN" "$DEST_BIN"
|
||||
sudo chown dnsuser:dnsuser "$DEST_DIR"
|
||||
|
||||
echo "🔁 Reloading systemd and restarting service..."
|
||||
sudo systemctl daemon-reload
|
||||
sudo systemctl restart dns-server.service
|
||||
|
||||
echo "📈 Checking service status..."
|
||||
sudo systemctl status dns-server.service
|
||||
```
|
||||
See [`deploy.sh`](deploy.sh) for the full deployment script.
|
||||
|
||||
### Docker Deployment
|
||||
|
||||
We provide a Docker-based deployment option using Alpine Linux for a minimal and secure container.
|
||||
|
||||
#### Dockerfile
|
||||
|
||||
```Dockerfile
|
||||
# Build stage
|
||||
FROM rust:1.72-slim-bookworm AS builder
|
||||
|
||||
# Install necessary build dependencies
|
||||
RUN apt-get update && apt-get install -y \
|
||||
musl-tools \
|
||||
build-essential \
|
||||
pkg-config \
|
||||
libssl-dev \
|
||||
&& rm -rf /var/lib/apt/lists/*
|
||||
|
||||
# Add support for cross-compilation to Alpine
|
||||
RUN rustup target add x86_64-unknown-linux-musl
|
||||
|
||||
# Create a new empty project
|
||||
WORKDIR /app
|
||||
COPY . .
|
||||
|
||||
# Build the project with musl target
|
||||
RUN cargo build --target x86_64-unknown-linux-musl --release
|
||||
|
||||
# Runtime stage
|
||||
FROM alpine:3.18
|
||||
|
||||
# Install runtime dependencies
|
||||
RUN apk --no-cache add ca-certificates sqlite tzdata
|
||||
|
||||
# Create a non-root user for running the application
|
||||
RUN addgroup -S dns && adduser -S dnsuser -G dns
|
||||
|
||||
# Create necessary directories
|
||||
RUN mkdir -p /var/nx9-dns-server /var/log/nx9-dns-server /etc/nx9-dns-server
|
||||
RUN chown -R dnsuser:dns /var/nx9-dns-server /var/log/nx9-dns-server /etc/nx9-dns-server
|
||||
|
||||
# Copy the compiled binary
|
||||
COPY --from=builder /app/target/x86_64-unknown-linux-musl/release/dns_server /usr/local/bin/
|
||||
RUN chmod +x /usr/local/bin/dns_server
|
||||
|
||||
# Copy configuration files
|
||||
COPY --from=builder /app/conf/dns_records.sql /etc/nx9-dns-server/
|
||||
COPY --from=builder /app/conf/dns.db.sample /etc/nx9-dns-server/
|
||||
|
||||
# Expose DNS ports
|
||||
EXPOSE 53/udp 53/tcp
|
||||
# Expose Web UI port
|
||||
EXPOSE 8080/tcp
|
||||
# Expose API port
|
||||
EXPOSE 8081/tcp
|
||||
|
||||
# Set working directory
|
||||
WORKDIR /var/nx9-dns-server
|
||||
|
||||
# Switch to non-root user
|
||||
USER dnsuser
|
||||
|
||||
# Command to run the application
|
||||
CMD ["/usr/local/bin/dns_server"]
|
||||
```
|
||||
|
||||
#### Building the Docker Image
|
||||
|
||||
```bash
|
||||
# Clone the repository
|
||||
git clone https://github.com/thakares/nx9-dns-server.git
|
||||
cd nx9-dns-server
|
||||
|
||||
# Build the Docker image
|
||||
docker build -t nx9-dns-server:latest .
|
||||
```
|
||||
|
||||
#### Running the Container
|
||||
|
||||
```bash
|
||||
# Run with basic configuration
|
||||
docker run -d --name nx9-dns \
|
||||
-p 53:53/udp -p 53:53/tcp \
|
||||
-p 8080:8080 -p 8081:8081 \
|
||||
-v /path/to/dns.db:/var/nx9-dns-server/dns.db \
|
||||
-v /path/to/keys:/etc/nx9-dns-server/keys \
|
||||
-e DNS_BIND=0.0.0.0:53 \
|
||||
-e DNS_DB_PATH=/var/nx9-dns-server/dns.db \
|
||||
-e DNSSEC_KEY_FILE=/etc/nx9-dns-server/keys/Kanydomain.tld.key \
|
||||
-e WEB_UI_BIND=0.0.0.0:8080 \
|
||||
-e API_BIND=0.0.0.0:8081 \
|
||||
nx9-dns-server:latest
|
||||
```
|
||||
|
||||
#### Using Docker Compose
|
||||
|
||||
For more complex deployments, a `docker-compose.yml` file is recommended:
|
||||
|
||||
```yaml
|
||||
version: '3.8'
|
||||
|
||||
services:
|
||||
dns:
|
||||
image: nx9-dns-server:latest
|
||||
container_name: nx9-dns
|
||||
ports:
|
||||
- "53:53/udp"
|
||||
- "53:53/tcp"
|
||||
- "8080:8080"
|
||||
- "8081:8081"
|
||||
volumes:
|
||||
- ./data/dns.db:/var/nx9-dns-server/dns.db
|
||||
- ./keys:/etc/nx9-dns-server/keys
|
||||
- ./logs:/var/log/nx9-dns-server
|
||||
environment:
|
||||
- DNS_BIND=0.0.0.0:53
|
||||
- DNS_DB_PATH=/var/nx9-dns-server/dns.db
|
||||
- DNSSEC_KEY_FILE=/etc/nx9-dns-server/keys/Kanydomain.tld.key
|
||||
- DNS_FORWARDERS=8.8.8.8:53,1.1.1.1:53
|
||||
- DNS_NS_RECORDS=ns1.anydomain.tld.,ns2.anydomain.tld.
|
||||
- WEB_UI_BIND=0.0.0.0:8080
|
||||
- API_BIND=0.0.0.0:8081
|
||||
restart: unless-stopped
|
||||
```
|
||||
|
||||
To run with Docker Compose:
|
||||
|
||||
```bash
|
||||
docker-compose up -d
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Configuration
|
||||
|
||||
Configuration is environment-driven and highly flexible.
|
||||
|
||||
**Key environment variables:**
|
||||
- `DNS_BIND`: Bind address (default: `0.0.0.0:53`)
|
||||
- `DNS_DB_PATH`: Path to the SQLite database (default: `dns.db`)
|
||||
- `DNSSEC_KEY_FILE`: Path to DNSSEC key file
|
||||
- `DNS_FORWARDERS`: Comma-separated list of upstream DNS resolvers
|
||||
- `DNS_NS_RECORDS`: Comma-separated list of NS records
|
||||
- `DNS_CACHE_TTL`: Cache TTL in seconds
|
||||
- `WEB_UI_BIND`: Bind address for web interface (default: `127.0.0.1:8080`)
|
||||
- `API_BIND`: Bind address for API service (default: `127.0.0.1:8081`)
|
||||
- `AUTH_SECRET`: Secret key for JWT token signing
|
||||
- `ADMIN_PASSWORD`: Initial admin password (only used if no users exist)
|
||||
|
||||
**Example:**
|
||||
```bash
|
||||
export DNS_BIND="0.0.0.0:53"
|
||||
export DNS_DB_PATH="/var/nx9-dns-server/dns.db"
|
||||
export DNSSEC_KEY_FILE="/var/nx9-dns-server/Kanydomain.tld.+008+24550.key"
|
||||
export DNS_FORWARDERS="8.8.8.8:53,1.1.1.1:53"
|
||||
export DNS_NS_RECORDS="ns1.anydomain.tld.,ns2.anydomain.tld."
|
||||
export WEB_UI_BIND="0.0.0.0:8080"
|
||||
export API_BIND="0.0.0.0:8081"
|
||||
export AUTH_SECRET="your-secure-random-string-here"
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Testing & Diagnostics
|
||||
|
||||
A suite of shell scripts is provided for diagnostics and record verification:
|
||||
|
||||
- **dnscheck.sh**: Runs a series of `dig` queries for all major record types and DNSSEC.
|
||||
- **dns_dump.sh**: Dumps all record types for a given domain.
|
||||
- **api_test.sh**: (Coming soon) Tests the API endpoints with sample requests.
|
||||
- **performance_test.sh**: (Coming soon) Benchmarks server performance under load.
|
||||
|
||||
**Example usage:**
|
||||
```bash
|
||||
bash dnscheck.sh
|
||||
bash dns_dump.sh anydomain.tld
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Roadmap
|
||||
|
||||
Our planned features and improvements:
|
||||
|
||||
### Short-term (1-3 months)
|
||||
- [x] Core DNS server functionality
|
||||
- [x] DNSSEC implementation
|
||||
- [ ] Web UI development (in progress)
|
||||
- [ ] RESTful API service (in progress)
|
||||
- [ ] User management system (planning)
|
||||
- [ ] Docker container support
|
||||
|
||||
### Medium-term (3-6 months)
|
||||
- [ ] Clustered deployment support
|
||||
- [ ] Metrics and monitoring integration (Prometheus)
|
||||
- [ ] Zone transfer (AXFR/IXFR) support
|
||||
- [ ] Dynamic DNS update protocol (RFC 2136)
|
||||
- [ ] DNSSEC key rotation automation
|
||||
- [ ] Kubernetes Helm charts for enterprise deployment
|
||||
|
||||
### Long-term (6+ months)
|
||||
- [ ] Secondary/slave DNS server support
|
||||
- [ ] Geo-based DNS responses
|
||||
- [ ] DNS over HTTPS (DoH) support
|
||||
- [ ] DNS over TLS (DoT) support
|
||||
- [ ] Record templating system
|
||||
|
||||
---
|
||||
|
||||
## Contributing
|
||||
|
||||
Contributions, bug reports, and feature requests are welcome! Please open issues or pull requests via GitHub.
|
||||
|
||||
### Priority Contribution Areas
|
||||
We're actively seeking contributions in these areas:
|
||||
|
||||
1. **Web UI Development**: Frontend components and integration with the backend
|
||||
2. **API Service**: RESTful API implementation for DNS record management
|
||||
3. **User Management**: Authentication, authorization, and user interface
|
||||
4. **Documentation**: Improving guides and examples
|
||||
5. **Testing**: Unit tests, integration tests, and automated CI pipelines
|
||||
|
||||
### How to Contribute
|
||||
1. Fork the repository
|
||||
2. Create a feature branch: `git checkout -b feature/amazing-feature`
|
||||
3. Commit your changes: `git commit -m 'Add some amazing feature'`
|
||||
4. Push to the branch: `git push origin feature/amazing-feature`
|
||||
5. Open a Pull Request
|
||||
|
||||
Please see [CONTRIBUTING.md](CONTRIBUTING.md) for detailed contribution guidelines.
|
||||
|
||||
---
|
||||
|
||||
## License
|
||||
|
||||
This project is licensed under the [GNU General Public License v3.0 (GPLv3)](LICENSE).
|
||||
|
||||
---
|
||||
|
||||
## Acknowledgements
|
||||
|
||||
- [Tokio](https://tokio.rs/) for async runtime
|
||||
- [rusqlite](https://crates.io/crates/rusqlite) for SQLite integration
|
||||
- [dig](https://linux.die.net/man/1/dig) for DNS diagnostics
|
||||
- Community contributors and supporters
|
||||
|
||||
---
|
||||
|
||||
**nx9-dns-server** is developed and maintained by Sunil Purushottam Thakare <sunil@thakares.com>.
|
||||
For more information, see the source code or contact the maintainer via GitHub.
|
||||
|
||||
---
|
||||
|
||||
**Tip:**
|
||||
Replace `anydomain.tld` with your actual domain throughout the configuration and database files.
|
||||
@@ -0,0 +1,35 @@
|
||||
#!/bin/bash
|
||||
|
||||
set -e # Exit on error
|
||||
|
||||
echo "🔧 Making preprocess-key.sh executable..."
|
||||
sudo chmod +x /var/nx9-dns-server/preprocess-key.sh
|
||||
|
||||
echo "👤 Running preprocess-key.sh as dnsuser..."
|
||||
sudo -u dnsuser /var/nx9-dns-server/preprocess-key.sh
|
||||
|
||||
echo "🔧 Setting ownership and permissions for soa-update.sh..."
|
||||
sudo chown dnsuser:dnsuser /var/nx9-dns-server/soa-update.sh
|
||||
sudo chmod +x /var/nx9-dns-server/soa-update.sh
|
||||
|
||||
echo "👤 Running soa-update.sh as dnsuser..."
|
||||
sudo -u dnsuser /var/nx9-dns-server/soa-update.sh
|
||||
|
||||
echo "📄 Checking output of processed.key..."
|
||||
sudo cat /var/nx9-dns-server/processed.key
|
||||
|
||||
echo "🛑 Stopping dns-server.service..."
|
||||
sudo systemctl stop dns-server.service
|
||||
|
||||
echo "📦 Deploying compiled binary to /var/nx9-dns-server..."
|
||||
sudo cp /home/sunil/apps/nx9-bzo-ddns/dns_server /var/nx9-dns-server/dns_server
|
||||
|
||||
echo "👤 Fixing ownership of /var/nx9-dns-server..."
|
||||
sudo chown dnsuser:dnsuser /var/nx9-dns-server
|
||||
|
||||
echo "🔄 Reloading systemd daemon and restarting service..."
|
||||
sudo systemctl daemon-reload
|
||||
sudo systemctl restart dns-server.service
|
||||
|
||||
echo "📡 Checking status of dns-server.service..."
|
||||
sudo systemctl status dns-server.service
|
||||
@@ -0,0 +1,35 @@
|
||||
#!/bin/bash
|
||||
set -e
|
||||
|
||||
# Paths
|
||||
SRC_BIN="/home/<user-name>/apps/nx9-dns-server/dns_server"
|
||||
DEST_DIR="/var/nx9-dns-server"
|
||||
DEST_BIN="$DEST_DIR/nx9-dns_server"
|
||||
PREPROCESS_SCRIPT="$DEST_DIR/preprocess-key.sh"
|
||||
SOA_UPDATE_SCRIPT="$DEST_DIR/soa-update.sh"
|
||||
|
||||
echo "🔐 Fixing permissions and running preprocess..."
|
||||
sudo chmod +x "$PREPROCESS_SCRIPT"
|
||||
sudo -u dnsuser "$PREPROCESS_SCRIPT"
|
||||
|
||||
echo "🛠 Updating SOA record..."
|
||||
sudo chown dnsuser:dnsuser "$SOA_UPDATE_SCRIPT"
|
||||
sudo chmod +x "$SOA_UPDATE_SCRIPT"
|
||||
sudo -u dnsuser "$SOA_UPDATE_SCRIPT"
|
||||
|
||||
echo "📄 Verifying processed.key content..."
|
||||
sudo cat "$DEST_DIR/processed.key"
|
||||
|
||||
echo "🛑 Stopping DNS server..."
|
||||
sudo systemctl stop dns-server.service
|
||||
|
||||
echo "📦 Deploying new dns_server binary..."
|
||||
sudo cp "$SRC_BIN" "$DEST_BIN"
|
||||
sudo chown dnsuser:dnsuser "$DEST_DIR"
|
||||
|
||||
echo "🔁 Reloading systemd and restarting service..."
|
||||
sudo systemctl daemon-reload
|
||||
sudo systemctl restart dns-server.service
|
||||
|
||||
echo "📈 Checking service status..."
|
||||
sudo systemctl status dns-server.service
|
||||
@@ -0,0 +1,9 @@
|
||||
#!/bin/bash
|
||||
DOMAIN=$1
|
||||
RECORDS="A AAAA MX TXT CNAME NS SOA PTR"
|
||||
|
||||
for TYPE in $RECORDS; do
|
||||
echo "== $TYPE records for $DOMAIN =="
|
||||
dig $DOMAIN $TYPE
|
||||
echo
|
||||
done
|
||||
@@ -0,0 +1,36 @@
|
||||
-- dns.query - SQL commands to populate DNS records
|
||||
BEGIN TRANSACTION;
|
||||
|
||||
-- First modify the table schema to allow multiple NS records
|
||||
CREATE TABLE IF NOT EXISTS dns_records (
|
||||
domain TEXT NOT NULL,
|
||||
record_type TEXT NOT NULL,
|
||||
value TEXT NOT NULL,
|
||||
ttl INTEGER DEFAULT 3600,
|
||||
PRIMARY KEY (domain, record_type, value)
|
||||
) WITHOUT ROWID;
|
||||
|
||||
-- Copy existing data to new table
|
||||
INSERT INTO dns_records_new SELECT * FROM dns_records;
|
||||
|
||||
-- Replace the old table
|
||||
DROP TABLE dns_records;
|
||||
ALTER TABLE dns_records_new RENAME TO dns_records;
|
||||
|
||||
-- Now insert all DNS records
|
||||
INSERT OR REPLACE INTO dns_records VALUES
|
||||
('33.61.254.60.in-addr.arpa', 'PTR', 'ns1.yourdomain.tld', 3600),
|
||||
('admin.yourdomain.tld', 'A', '60.254.61.33', 3600),
|
||||
('api.yourdomain.tld', 'A', '60.254.61.33', 3600),
|
||||
('yourdomain.tld', 'A', '60.254.61.33', 3600),
|
||||
('yourdomain.tld', 'MX', '10 mail.yourdomain.tld', 3600),
|
||||
('yourdomain.tld', 'NS', 'ns1.yourdomain.tld', 3600),
|
||||
('yourdomain.tld', 'NS', 'ns2.yourdomain.tld', 3600), -- This will now work with the new schema
|
||||
('yourdomain.tld', 'SOA', 'ns1.yourdomain.tld hostmaster.yourdomain.tld 1 10800 3600 604800 86400', 3600),
|
||||
('yourdomain.tld', 'TXT', '"v=spf1 a mx ~all"', 3600),
|
||||
('ddns.yourdomain.tld', 'A', '60.254.61.33', 3600),
|
||||
('ns1.yourdomain.tld', 'A', '60.254.61.33', 3600),
|
||||
('ns2.yourdomain.tld', 'A', '60.254.61.33', 3600),
|
||||
('www.yourdomain.tld', 'A', '60.254.61.33', 3600);
|
||||
|
||||
COMMIT;
|
||||
@@ -0,0 +1,33 @@
|
||||
[Unit]
|
||||
Description=NX9 DNS Server
|
||||
After=network.target
|
||||
|
||||
[Service]
|
||||
User=dnsuser
|
||||
Group=dnsuser
|
||||
WorkingDirectory=/var/nx9-dns-server
|
||||
ExecStart=/var/dns-server/nx9-dns_server # Run directly, skip wrapper
|
||||
Restart=always
|
||||
Environment=DNS_BIND=0.0.0.0:53
|
||||
Environment=DNS_ENABLE_IPV6=1
|
||||
Environment=DNS_MAX_PACKET_SIZE=4096
|
||||
Environment=DNS_DB_PATH=/var/nx9-dns-server/dns.db
|
||||
Environment=DNS_NS_RECORDS=ns1.yourdomain.tld.,ns2.yourdomain.tld.
|
||||
Environment=DNS_AUTHORITATIVE=1
|
||||
Environment=DNS_CACHE_TTL=300
|
||||
Environment=RUST_LOG=info
|
||||
Environment=DNS_DEFAULT_DOMAIN=yourdomain.tld
|
||||
Environment=DNS_DEFAULT_IP=<YOUR-PUBLIC-IP4>
|
||||
Environment="DNS_RECURSIVE=1" # Enable recursive resolution
|
||||
Environment="DNS_CACHE_SIZE=10000"
|
||||
Environment="DNS_FORWARDERS=8.8.8.8:53,1.1.1.1:53,9.9.9.9:53"
|
||||
|
||||
CapabilityBoundingSet=CAP_NET_BIND_SERVICE
|
||||
AmbientCapabilities=CAP_NET_BIND_SERVICE
|
||||
ReadWritePaths=/var/nx9-dns-server
|
||||
ProtectSystem=full
|
||||
LimitNOFILE=65536
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
|
||||
@@ -0,0 +1,22 @@
|
||||
# Create a file at /var/nx9-dns-server/dns_wrapper.sh
|
||||
#!/bin/bash
|
||||
# Log start with timestamp
|
||||
echo "Starting DNS server at $(date)" >> /var/log/nx9-dns_server_wrapper.log
|
||||
|
||||
# Export all environment variables explicitly
|
||||
export DNS_DB_PATH=/var/nx9-dns-server/dns.db
|
||||
export DNS_BIND=0.0.0.0:53
|
||||
export DNS_ENABLE_IPV6=1
|
||||
export DNS_MAX_PACKET_SIZE=4096
|
||||
export DNS_NS_RECORDS=ns1.yourdomain.tld.,ns2.yourdomain.tld.
|
||||
export DNS_AUTHORITATIVE=1
|
||||
export DNS_CACHE_TTL=300
|
||||
export RUST_LOG=info
|
||||
export DNS_DEFAULT_DOMAIN=yourdomain.tld
|
||||
export DNS_DEFAULT_IP=<YOUR-PUBLIC-IP4>
|
||||
|
||||
# Print environment for debugging
|
||||
env >> /var/log/nx9-dns-server_wrapper.log
|
||||
|
||||
# Run the DNS server
|
||||
/var/dns-server/nx9-dns-server
|
||||
+44
@@ -0,0 +1,44 @@
|
||||
#!/bin/bash
|
||||
|
||||
DOMAIN="yourdomain.tld"
|
||||
DNS_SERVER="192.168.1.200" # your LAN Server Address
|
||||
|
||||
echo "=== DNS Diagnostic Report for $DOMAIN using $DNS_SERVER ==="
|
||||
echo
|
||||
|
||||
# DNSKEY with DNSSEC
|
||||
echo ">>> DNSKEY (with DNSSEC):"
|
||||
dig @"$DNS_SERVER" "$DOMAIN." DNSKEY +dnssec
|
||||
echo
|
||||
|
||||
# DS record
|
||||
echo ">>> DS Record:"
|
||||
dig @"$DNS_SERVER" "$DOMAIN." DS
|
||||
echo
|
||||
|
||||
# NS record
|
||||
echo ">>> NS Record:"
|
||||
dig @"$DNS_SERVER" "$DOMAIN." NS
|
||||
echo
|
||||
|
||||
# MX record
|
||||
echo ">>> MX Record:"
|
||||
dig @"$DNS_SERVER" "$DOMAIN." MX
|
||||
echo
|
||||
|
||||
# SOA record
|
||||
echo ">>> SOA Record:"
|
||||
dig @"$DNS_SERVER" "$DOMAIN." SOA
|
||||
echo
|
||||
|
||||
# A record
|
||||
echo ">>> A Record:"
|
||||
dig @"$DNS_SERVER" "$DOMAIN." A
|
||||
echo
|
||||
|
||||
# Optional: check AAAA (IPv6) record
|
||||
echo ">>> AAAA (IPv6) Record:"
|
||||
dig @"$DNS_SERVER" "$DOMAIN." AAAA
|
||||
echo
|
||||
|
||||
echo "=== End of DNS Report ==="
|
||||
@@ -0,0 +1,24 @@
|
||||
version: '3.8'
|
||||
|
||||
services:
|
||||
dns:
|
||||
image: nx9-dns-server:latest
|
||||
container_name: nx9-dns
|
||||
ports:
|
||||
- "53:53/udp"
|
||||
- "53:53/tcp"
|
||||
- "8080:8080"
|
||||
- "8081:8081"
|
||||
volumes:
|
||||
- ./data/dns.db:/var/nx9-dns-server/dns.db
|
||||
- ./keys:/etc/nx9-dns-server/keys
|
||||
- ./logs:/var/log/nx9-dns-server
|
||||
environment:
|
||||
- DNS_BIND=0.0.0.0:53
|
||||
- DNS_DB_PATH=/var/nx9-dns-server/dns.db
|
||||
- DNSSEC_KEY_FILE=/etc/nx9-dns-server/keys/Kanydomain.tld.key
|
||||
- DNS_FORWARDERS=8.8.8.8:53,1.1.1.1:53
|
||||
- DNS_NS_RECORDS=ns1.anydomain.tld.,ns2.anydomain.tld.
|
||||
- WEB_UI_BIND=0.0.0.0:8080
|
||||
- API_BIND=0.0.0.0:8081
|
||||
restart: unless-stopped
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 1.6 MiB |
@@ -0,0 +1,26 @@
|
||||
#!/bin/bash
|
||||
|
||||
INPUT_FILE="/var/nx9-dns-server/Kyourdomain.+nnn+nnnnn.key"
|
||||
OUTPUT_FILE="/var/nx9-dns-server/processed.key"
|
||||
|
||||
# Extract and clean the DNSKEY record
|
||||
DNSKEY_RECORD=$(grep -E '^[^;].*IN[[:space:]]+DNSKEY' "$INPUT_FILE" | head -1)
|
||||
|
||||
if [ -z "$DNSKEY_RECORD" ]; then
|
||||
echo "Error: No valid DNSKEY record found" >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Format: "domain. IN DNSKEY flags protocol algorithm key"
|
||||
echo "$DNSKEY_RECORD" | awk '{
|
||||
# Remove comments and extra spaces
|
||||
gsub(/;.*$/, "");
|
||||
gsub(/[[:space:]]+/, " ");
|
||||
# Reconstruct with clean base64
|
||||
printf "%s %s %s %s %s %s ", $1, $2, $3, $4, $5, $6;
|
||||
# Print key without any whitespace
|
||||
for (i=7; i<=NF; i++) printf "%s", $i;
|
||||
print "";
|
||||
}' > "$OUTPUT_FILE"
|
||||
|
||||
exit 0
|
||||
@@ -0,0 +1,17 @@
|
||||
#!/bin/bash
|
||||
DB_PATH="/var/nx9-dns-server/dns.db"
|
||||
ZONE="yourdomain.tld"
|
||||
|
||||
# Get today's date and an incremental suffix
|
||||
DATE=$(date +%Y%m%d)
|
||||
SERIAL_SUFFIX="01"
|
||||
NEW_SERIAL="${DATE}${SERIAL_SUFFIX}"
|
||||
|
||||
# Update SOA value
|
||||
sqlite3 "$DB_PATH" <<EOF
|
||||
UPDATE dns_records
|
||||
SET value = 'ns1.yourdomain.tld hostmaster.yourdomain.tld $NEW_SERIAL 10800 3600 604800 86400'
|
||||
WHERE domain = '$ZONE' AND record_type = 'SOA';
|
||||
EOF
|
||||
|
||||
echo "SOA record updated with serial: $NEW_SERIAL"
|
||||
+102
@@ -0,0 +1,102 @@
|
||||
//! DNS cache implementation.
|
||||
//!
|
||||
//! This module provides a simple in-memory cache for DNS records to improve
|
||||
//! performance by avoiding repeated database lookups for frequently accessed domains.
|
||||
#![allow(dead_code)]
|
||||
#[allow(unused_variables)]
|
||||
|
||||
use std::{
|
||||
collections::HashMap,
|
||||
sync::{Arc, Mutex, OnceLock},
|
||||
time::{Duration, SystemTime},
|
||||
};
|
||||
use log::debug;
|
||||
|
||||
/// Interval for cleaning up expired cache entries (in seconds).
|
||||
pub const CACHE_CLEANUP_INTERVAL: Duration = Duration::from_secs(300);
|
||||
|
||||
/// Global cache instance.
|
||||
pub static CACHE: OnceLock<DnsCache> = OnceLock::new();
|
||||
|
||||
/// An entry in the DNS cache.
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct CacheEntry {
|
||||
/// The IP address for the domain.
|
||||
pub ip: String,
|
||||
|
||||
/// When this entry was added to the cache.
|
||||
pub inserted: SystemTime,
|
||||
|
||||
/// Time-to-live in seconds.
|
||||
pub ttl: u64,
|
||||
}
|
||||
|
||||
/// Cache for DNS records to improve performance.
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct DnsCache {
|
||||
/// Map of domain names to cache entries.
|
||||
pub entries: Arc<Mutex<HashMap<String, CacheEntry>>>,
|
||||
|
||||
/// List of NS records for zones this server is authoritative for.
|
||||
pub ns_records: Vec<String>,
|
||||
}
|
||||
|
||||
impl DnsCache {
|
||||
/// Create a new DNS cache.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `ns_records` - List of NS records for zones this server is authoritative for.
|
||||
///
|
||||
/// # Returns
|
||||
/// A new `DnsCache` instance.
|
||||
pub fn new(ns_records: Vec<String>) -> Self {
|
||||
Self {
|
||||
entries: Arc::new(Mutex::new(HashMap::new())),
|
||||
ns_records,
|
||||
}
|
||||
}
|
||||
|
||||
/// Get a cached IP address for a domain.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `domain` - The domain name to look up.
|
||||
///
|
||||
/// # Returns
|
||||
/// An `Option` containing the IP address and TTL if found and not expired.
|
||||
pub fn get(&self, domain: &str) -> Option<(String, u64)> {
|
||||
let cache = self.entries.lock().unwrap();
|
||||
if let Some(entry) = cache.get(domain) {
|
||||
if entry.inserted.elapsed().map(|d| d.as_secs() <= entry.ttl).unwrap_or(true) {
|
||||
return Some((entry.ip.clone(), entry.ttl));
|
||||
}
|
||||
}
|
||||
None
|
||||
}
|
||||
|
||||
/// Add or update a domain in the cache.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `domain` - The domain name to cache.
|
||||
/// * `ip` - The IP address for the domain.
|
||||
/// * `ttl` - Time-to-live in seconds.
|
||||
pub fn set(&self, domain: String, ip: String, ttl: u64) {
|
||||
let mut cache = self.entries.lock().unwrap();
|
||||
cache.insert(
|
||||
domain,
|
||||
CacheEntry {
|
||||
ip,
|
||||
inserted: SystemTime::now(),
|
||||
ttl,
|
||||
},
|
||||
);
|
||||
}
|
||||
|
||||
/// Remove expired entries from the cache.
|
||||
pub fn cleanup(&self) {
|
||||
let mut cache = self.entries.lock().unwrap();
|
||||
cache.retain(|_, entry| {
|
||||
entry.inserted.elapsed().map(|d| d.as_secs() <= entry.ttl).unwrap_or(true)
|
||||
});
|
||||
debug!("Cache cleanup completed");
|
||||
}
|
||||
}
|
||||
+117
@@ -0,0 +1,117 @@
|
||||
//! Configuration for the DNS server.
|
||||
//!
|
||||
//! This module defines the configuration structure and methods to load
|
||||
//! configuration from environment variables.
|
||||
#![allow(dead_code)]
|
||||
#[allow(unused_variables)]
|
||||
|
||||
use std::{env, fs, net::SocketAddr};
|
||||
use log::{error, info};
|
||||
|
||||
use crate::errors::DnsError;
|
||||
|
||||
/// Default TTL for DNS records in seconds.
|
||||
pub const DEFAULT_TTL: u64 = 600;
|
||||
|
||||
/// Maximum size of DNS packets in bytes.
|
||||
pub const MAX_PACKET_SIZE: usize = 4096;
|
||||
|
||||
/// Server configuration loaded from environment variables.
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct ServerConfig {
|
||||
/// Address to bind the DNS server to.
|
||||
pub bind_addr: SocketAddr,
|
||||
|
||||
/// Path to the SQLite database file.
|
||||
pub db_path: String,
|
||||
|
||||
/// Time-to-live for cached DNS records.
|
||||
pub cache_ttl: u64,
|
||||
|
||||
/// Whether to enable IPv6 support.
|
||||
pub enable_ipv6: bool,
|
||||
|
||||
/// Maximum size of DNS packets.
|
||||
pub max_packet_size: usize,
|
||||
|
||||
/// Whether this server is authoritative for its zones.
|
||||
pub authoritative: bool,
|
||||
|
||||
/// List of NS records for zones this server is authoritative for.
|
||||
pub ns_records: Vec<String>,
|
||||
|
||||
/// Default domain for the server.
|
||||
pub default_domain: String,
|
||||
|
||||
/// Default IP address for the server.
|
||||
pub default_ip: String,
|
||||
|
||||
/// List of upstream DNS servers to forward queries to.
|
||||
pub forwarders: Vec<SocketAddr>,
|
||||
|
||||
/// List of DS records for DNSSEC.
|
||||
pub ds_records: Vec<String>,
|
||||
|
||||
/// List of DNSKEY records for DNSSEC.
|
||||
pub dnskey_records: Vec<String>,
|
||||
}
|
||||
|
||||
impl ServerConfig {
|
||||
/// Load server configuration from environment variables.
|
||||
///
|
||||
/// # Returns
|
||||
/// A `Result` containing either the loaded `ServerConfig` or a `DnsError`.
|
||||
pub fn from_env() -> Result<Self, DnsError> {
|
||||
let bind_addr = env::var("DNS_BIND")
|
||||
.unwrap_or_else(|_| "0.0.0.0:53".into())
|
||||
.parse()
|
||||
.map_err(|_| DnsError::Config("Invalid DNS_BIND address".into()))?;
|
||||
|
||||
let forwarders = env::var("DNS_FORWARDERS")
|
||||
.unwrap_or_else(|_| "8.8.8.8:53,1.1.1.1:53,9.9.9.9:53".into())
|
||||
.split(',')
|
||||
.filter_map(|s| s.trim().parse().ok())
|
||||
.collect();
|
||||
|
||||
let key_path = env::var("DNSSEC_KEY_FILE").unwrap_or_else(|_| "Kbzo.in.+008+24550.key".to_string());
|
||||
let dnskey_records = match fs::read_to_string(&key_path) {
|
||||
Ok(content) => {
|
||||
info!("Loaded DNSSEC key from {}", key_path);
|
||||
vec![content.trim().to_string()]
|
||||
},
|
||||
Err(e) => {
|
||||
error!("Failed to load DNSSEC key from {}: {}", key_path, e);
|
||||
vec![]
|
||||
}
|
||||
};
|
||||
|
||||
Ok(Self {
|
||||
bind_addr,
|
||||
db_path: env::var("DNS_DB_PATH").unwrap_or_else(|_| "dns.db".into()),
|
||||
cache_ttl: env::var("DNS_CACHE_TTL")
|
||||
.ok()
|
||||
.and_then(|v| v.parse().ok())
|
||||
.unwrap_or(DEFAULT_TTL),
|
||||
enable_ipv6: env::var("DNS_ENABLE_IPV6")
|
||||
.map(|v| v == "1" || v.eq_ignore_ascii_case("true"))
|
||||
.unwrap_or(false),
|
||||
max_packet_size: env::var("DNS_MAX_PACKET_SIZE")
|
||||
.ok()
|
||||
.and_then(|v| v.parse().ok())
|
||||
.unwrap_or(MAX_PACKET_SIZE),
|
||||
authoritative: env::var("DNS_AUTHORITATIVE")
|
||||
.map(|v| v == "1" || v.eq_ignore_ascii_case("true"))
|
||||
.unwrap_or(false),
|
||||
ns_records: env::var("DNS_NS_RECORDS")
|
||||
.map(|v| v.split(',').map(|s| s.trim().to_string()).collect())
|
||||
.unwrap_or_else(|_| vec!["ns1.yourdomain.tld.".into(), "ns2.yourdomain.tld.".into()]),
|
||||
default_domain: env::var("DNS_DEFAULT_DOMAIN").unwrap_or_else(|_| "bzo.in".into()),
|
||||
default_ip: env::var("DNS_DEFAULT_IP").unwrap_or_else(|_| "<your-public-ip4-here>".into()),
|
||||
ds_records: vec![
|
||||
"yourdomain.tld. IN DS 24550 8 2 1F21CA282945434EE0662805430599CB2A6C479D9F934087150901CE2DA580A0".to_string()
|
||||
],
|
||||
dnskey_records,
|
||||
forwarders,
|
||||
})
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,224 @@
|
||||
//! Database operations for the DNS server.
|
||||
//!
|
||||
//! This module provides functions for interacting with the SQLite database
|
||||
//! that stores DNS records and zone information.
|
||||
|
||||
use rusqlite::{params, Connection};
|
||||
|
||||
use crate::errors::DnsError;
|
||||
use crate::config::ServerConfig;
|
||||
|
||||
/// Information about a DNS zone.
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct ZoneInfo {
|
||||
/// The domain name of the zone.
|
||||
pub name: String,
|
||||
|
||||
/// List of NS records for the zone.
|
||||
pub ns_records: Vec<String>,
|
||||
|
||||
/// SOA record for the zone, if available.
|
||||
pub soa_record: Option<String>,
|
||||
}
|
||||
|
||||
/// Initialize the DNS database.
|
||||
///
|
||||
/// Creates the database schema if it doesn't exist and populates it with default records
|
||||
/// if the database is empty.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `db_path` - Path to the SQLite database file.
|
||||
/// * `default_domain` - Default domain name to use for initial records.
|
||||
/// * `default_ip` - Default IP address to use for initial records.
|
||||
///
|
||||
/// # Returns
|
||||
/// A `Result` indicating success or failure.
|
||||
pub fn init_db(db_path: &str, default_domain: &str, default_ip: &str) -> Result<(), DnsError> {
|
||||
let conn = Connection::open(db_path)?;
|
||||
|
||||
// Updated schema to allow multiple NS records
|
||||
conn.execute(
|
||||
"CREATE TABLE IF NOT EXISTS dns_records (
|
||||
domain TEXT NOT NULL,
|
||||
record_type TEXT NOT NULL CHECK(record_type IN (
|
||||
'A','AAAA','MX','TXT','NS','CNAME','PTR','SOA',
|
||||
'SRV','CAA','NAPTR','DS','DNSKEY','RRSIG','NSEC',
|
||||
'TLSA','SSHFP'
|
||||
)),
|
||||
value TEXT NOT NULL,
|
||||
ttl INTEGER DEFAULT 3600,
|
||||
PRIMARY KEY (domain, record_type, value) -- Now allows multiple NS records
|
||||
) WITHOUT ROWID",
|
||||
[],
|
||||
)?;
|
||||
|
||||
let count: i64 = conn.query_row("SELECT COUNT(*) FROM dns_records", [], |row| row.get(0))?;
|
||||
|
||||
if count == 0 && !default_ip.is_empty() {
|
||||
let mail_domain = format!("mail.{}", default_domain);
|
||||
let ns1 = format!("ns1.{}", default_domain);
|
||||
let ns2 = format!("ns2.{}", default_domain);
|
||||
let soa_record = format!("{} hostmaster.{} 1 10800 3600 604800 86400", ns1, default_domain);
|
||||
|
||||
conn.execute_batch(
|
||||
&format!(
|
||||
r#"
|
||||
INSERT OR IGNORE INTO dns_records VALUES('{0}', 'A', ?, 3600);
|
||||
INSERT OR IGNORE INTO dns_records VALUES('www.{0}', 'A', ?, 3600);
|
||||
INSERT OR IGNORE INTO dns_records VALUES('api.{0}', 'A', ?, 3600);
|
||||
INSERT OR IGNORE INTO dns_records VALUES('mail.{0}', 'A', ?, 3600);
|
||||
INSERT OR IGNORE INTO dns_records VALUES('ns1.{0}', 'A', ?, 3600);
|
||||
INSERT OR IGNORE INTO dns_records VALUES('ns2.{0}', 'A', ?, 3600);
|
||||
INSERT OR IGNORE INTO dns_records VALUES('{0}', 'MX', '10 {1}', 3600);
|
||||
INSERT OR IGNORE INTO dns_records VALUES('{0}', 'TXT', '\"v=spf1 a mx ~all\"', 3600);
|
||||
INSERT OR IGNORE INTO dns_records VALUES('{0}', 'NS', '{2}', 3600);
|
||||
INSERT OR IGNORE INTO dns_records VALUES('{0}', 'NS', '{3}', 3600);
|
||||
INSERT OR IGNORE INTO dns_records VALUES('{0}', 'SOA', '{4}', 3600);
|
||||
"#,
|
||||
default_domain, mail_domain, ns1, ns2, soa_record
|
||||
),
|
||||
)?;
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Look up DNS records for a domain.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `db_path` - Path to the SQLite database file.
|
||||
/// * `domain` - Domain name to look up.
|
||||
///
|
||||
/// # Returns
|
||||
/// A vector of tuples containing (value, ttl, record_type) for each record found.
|
||||
pub fn lookup_records(db_path: &str, domain: &str) -> Vec<(String, u64, String)> {
|
||||
let conn = Connection::open(db_path);
|
||||
match conn {
|
||||
Ok(conn) => {
|
||||
match conn.prepare(
|
||||
"SELECT value, ttl, record_type FROM dns_records WHERE domain = ?"
|
||||
) {
|
||||
Ok(mut stmt) => {
|
||||
match stmt.query_map(params![domain], |row| {
|
||||
Ok((
|
||||
row.get(0).unwrap_or_default(),
|
||||
row.get(1).unwrap_or_default(),
|
||||
row.get(2).unwrap_or_default(),
|
||||
))
|
||||
}) {
|
||||
Ok(rows) => rows.filter_map(Result::ok).collect(),
|
||||
Err(_) => Vec::new(),
|
||||
}
|
||||
}
|
||||
Err(_) => Vec::new(),
|
||||
}
|
||||
}
|
||||
Err(_) => Vec::new(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Get information about all zones for which this server is authoritative.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `db_path` - Path to the SQLite database file.
|
||||
///
|
||||
/// # Returns
|
||||
/// A vector of `ZoneInfo` structs containing information about each zone.
|
||||
pub fn get_authoritative_zones(db_path: &str) -> Vec<ZoneInfo> {
|
||||
let mut zones = Vec::new();
|
||||
|
||||
if let Ok(conn) = Connection::open(db_path) {
|
||||
// Find all domains with NS records (these are zones)
|
||||
if let Ok(mut stmt) = conn.prepare(
|
||||
"SELECT DISTINCT domain FROM dns_records WHERE record_type = 'NS'"
|
||||
) {
|
||||
if let Ok(rows) = stmt.query_map([], |row| {
|
||||
Ok(row.get::<_, String>(0)?)
|
||||
}) {
|
||||
for domain_result in rows {
|
||||
if let Ok(domain) = domain_result {
|
||||
let mut zone_info = ZoneInfo {
|
||||
name: domain.clone(),
|
||||
ns_records: Vec::new(),
|
||||
soa_record: None,
|
||||
};
|
||||
|
||||
// Get NS records for this zone
|
||||
if let Ok(mut ns_stmt) = conn.prepare(
|
||||
"SELECT value FROM dns_records WHERE domain = ? AND record_type = 'NS'"
|
||||
) {
|
||||
if let Ok(ns_rows) = ns_stmt.query_map([&domain], |row| {
|
||||
Ok(row.get::<_, String>(0)?)
|
||||
}) {
|
||||
zone_info.ns_records = ns_rows.filter_map(Result::ok).collect();
|
||||
}
|
||||
}
|
||||
|
||||
// Get SOA record if exists
|
||||
if let Ok(mut soa_stmt) = conn.prepare(
|
||||
"SELECT value FROM dns_records WHERE domain = ? AND record_type = 'SOA' LIMIT 1"
|
||||
) {
|
||||
if let Ok(mut soa_rows) = soa_stmt.query_map([&domain], |row| {
|
||||
Ok(row.get::<_, String>(0)?)
|
||||
}) {
|
||||
zone_info.soa_record = soa_rows.next().and_then(|r| r.ok());
|
||||
}
|
||||
}
|
||||
|
||||
zones.push(zone_info);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Add default zone information from config
|
||||
if zones.is_empty() {
|
||||
if let Ok(config) = ServerConfig::from_env() {
|
||||
let default_zone = ZoneInfo {
|
||||
name: config.default_domain.clone(),
|
||||
ns_records: config.ns_records.clone(),
|
||||
soa_record: Some(format!(
|
||||
"{} hostmaster.{} 1 10800 3600 604800 86400",
|
||||
config.ns_records.first().unwrap_or(&String::from("ns1.example.com.")),
|
||||
config.default_domain
|
||||
)),
|
||||
};
|
||||
zones.push(default_zone);
|
||||
}
|
||||
}
|
||||
|
||||
zones
|
||||
}
|
||||
|
||||
/// Find the closest parent zone for a given domain.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `domain` - Domain name to find the parent zone for.
|
||||
/// * `zones` - List of zones to search in.
|
||||
///
|
||||
/// # Returns
|
||||
/// An `Option` containing the closest parent zone, if found.
|
||||
pub fn find_closest_parent_zone(domain: &str, zones: &[ZoneInfo]) -> Option<ZoneInfo> {
|
||||
let domain_parts: Vec<&str> = domain.split('.').collect();
|
||||
|
||||
// Try progressively shorter parent domains
|
||||
for i in 0..domain_parts.len() {
|
||||
let candidate = domain_parts[i..].join(".");
|
||||
|
||||
// Exact match
|
||||
if let Some(zone) = zones.iter().find(|z| z.name == candidate) {
|
||||
return Some(zone.clone());
|
||||
}
|
||||
}
|
||||
|
||||
// Check if domain is a subdomain of any zone we're authoritative for
|
||||
for zone in zones {
|
||||
if domain.ends_with(&format!(".{}", zone.name)) {
|
||||
return Some(zone.clone());
|
||||
}
|
||||
}
|
||||
|
||||
// If no match found, return None - we are not authoritative for this domain
|
||||
None
|
||||
}
|
||||
+1229
File diff suppressed because it is too large.
Load diff
@@ -0,0 +1,39 @@
|
||||
//! Error types for the DNS server
|
||||
#![allow(dead_code)]
|
||||
#[allow(unused_variables)]
|
||||
|
||||
use std::io;
|
||||
use rusqlite;
|
||||
use thiserror::Error;
|
||||
|
||||
/// Errors that can occur in the DNS server
|
||||
#[derive(Debug, Error)]
|
||||
pub enum DnsError {
|
||||
/// I/O errors from the underlying system
|
||||
#[error("I/O error: {0}")]
|
||||
Io(#[from] io::Error),
|
||||
|
||||
/// Database errors from SQLite operations
|
||||
#[error("Database error: {0}")]
|
||||
Db(#[from] rusqlite::Error),
|
||||
|
||||
/// Protocol errors related to DNS message format or content
|
||||
#[error("Protocol error: {0}")]
|
||||
Protocol(String),
|
||||
|
||||
/// Configuration errors from invalid settings
|
||||
#[error("Configuration error: {0}")]
|
||||
Config(String),
|
||||
|
||||
/// Parse errors from string to number conversions
|
||||
#[error("Parse error: {0}")]
|
||||
Parse(#[from] std::num::ParseIntError),
|
||||
|
||||
/// Base64 decoding errors
|
||||
#[error("Base64 error: {0}")]
|
||||
Base64(String),
|
||||
|
||||
/// Shutdown signal received
|
||||
#[error("Shutdown signal received")]
|
||||
Shutdown,
|
||||
}
|
||||
@@ -0,0 +1,39 @@
|
||||
//! Error types for the DNS server.
|
||||
//!
|
||||
//! This module defines the error types used throughout the DNS server implementation.
|
||||
#![allow(dead_code)]
|
||||
#[allow(unused_variables)]
|
||||
|
||||
use thiserror::Error;
|
||||
|
||||
/// Represents errors that can occur in the DNS server.
|
||||
#[derive(Error, Debug)]
|
||||
pub enum DnsError {
|
||||
/// I/O errors from the standard library.
|
||||
#[error("I/O error: {0}")]
|
||||
Io(#[from] std::io::Error),
|
||||
|
||||
/// Database errors from rusqlite.
|
||||
#[error("Database error: {0}")]
|
||||
Db(#[from] rusqlite::Error),
|
||||
|
||||
/// Errors related to DNS protocol parsing or formatting.
|
||||
#[error("Invalid DNS packet: {0}")]
|
||||
Protocol(String),
|
||||
|
||||
/// Configuration errors.
|
||||
#[error("Configuration error: {0}")]
|
||||
Config(String),
|
||||
|
||||
/// Integer parsing errors.
|
||||
#[error("Parse error: {0}")]
|
||||
Parse(#[from] std::num::ParseIntError),
|
||||
|
||||
/// Base64 decoding errors.
|
||||
#[error("Base64 error: {0}")]
|
||||
Base64(String),
|
||||
|
||||
/// Shutdown signal received.
|
||||
#[error("Shutdown signal received")]
|
||||
Shutdown,
|
||||
}
|
||||
+190
@@ -0,0 +1,190 @@
|
||||
//! Request handlers for the DNS server.
|
||||
//!
|
||||
//! This module provides functions for handling DNS requests over UDP and TCP.
|
||||
#![allow(dead_code)]
|
||||
#[allow(unused_variables)]
|
||||
|
||||
use std::net::SocketAddr;
|
||||
use std::sync::Arc;
|
||||
use log::{debug, error, info, warn};
|
||||
use tokio::{
|
||||
io::AsyncReadExt,
|
||||
net::{TcpListener, TcpStream, UdpSocket},
|
||||
task,
|
||||
};
|
||||
|
||||
use crate::errors::DnsError;
|
||||
use crate::config::ServerConfig;
|
||||
use crate::utils::extract_domain;
|
||||
use crate::dns::{
|
||||
build_not_implemented_response, build_nxdomain_response, generate_dns_response,
|
||||
send_tcp_response,
|
||||
};
|
||||
|
||||
/// Run the UDP DNS server.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `config` - The server configuration.
|
||||
///
|
||||
/// # Returns
|
||||
/// A `Result` indicating success or failure.
|
||||
pub async fn run_udp_server(config: ServerConfig) -> Result<(), DnsError> {
|
||||
let socket = UdpSocket::bind(config.bind_addr).await?;
|
||||
info!("UDP DNS server listening on {}", config.bind_addr);
|
||||
let socket = Arc::new(socket);
|
||||
let mut buf = vec![0u8; config.max_packet_size];
|
||||
|
||||
loop {
|
||||
match socket.recv_from(&mut buf).await {
|
||||
Ok((amt, src)) => {
|
||||
let query = buf[..amt].to_vec();
|
||||
let socket = socket.clone();
|
||||
let config = config.clone();
|
||||
task::spawn(async move {
|
||||
if let Err(e) = handle_udp_query(query, src, socket, config).await {
|
||||
warn!("UDP query error: {}", e);
|
||||
}
|
||||
});
|
||||
}
|
||||
Err(e) => error!("UDP receive error: {}", e),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Handle a UDP DNS query.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `query` - The DNS query.
|
||||
/// * `src` - The source address of the query.
|
||||
/// * `socket` - The UDP socket to send the response on.
|
||||
/// * `config` - The server configuration.
|
||||
///
|
||||
/// # Returns
|
||||
/// A `Result` indicating success or failure.
|
||||
pub async fn handle_udp_query(
|
||||
query: Vec<u8>,
|
||||
src: SocketAddr,
|
||||
socket: Arc<UdpSocket>,
|
||||
config: ServerConfig,
|
||||
) -> Result<(), DnsError> {
|
||||
if query.len() < 12 {
|
||||
debug!("Received malformed query from {}", src);
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
let opcode = (query[2] & 0x78) >> 3;
|
||||
if opcode != 0 {
|
||||
if let Some(response) = build_not_implemented_response(&query, config.authoritative) {
|
||||
socket.send_to(&response, src).await?;
|
||||
}
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
let domain = match extract_domain(&query) {
|
||||
Some(d) => d,
|
||||
None => {
|
||||
info!("Failed to extract domain from query");
|
||||
return Ok(());
|
||||
}
|
||||
};
|
||||
|
||||
debug!("UDP query for {} from {}", domain, src);
|
||||
info!("Processing query for domain: {}", domain);
|
||||
|
||||
let response = match generate_dns_response(&query, domain.clone(), &config).await {
|
||||
Ok(resp) => resp,
|
||||
Err(_) => {
|
||||
build_nxdomain_response(&query, config.authoritative)
|
||||
.ok_or(DnsError::Protocol("NXDOMAIN".into()))?
|
||||
}
|
||||
};
|
||||
|
||||
socket.send_to(&response, src).await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Run the TCP DNS server.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `config` - The server configuration.
|
||||
///
|
||||
/// # Returns
|
||||
/// A `Result` indicating success or failure.
|
||||
pub async fn run_tcp_server(config: ServerConfig) -> Result<(), DnsError> {
|
||||
let listener = TcpListener::bind(config.bind_addr).await?;
|
||||
info!("TCP DNS server listening on {}", config.bind_addr);
|
||||
|
||||
loop {
|
||||
match listener.accept().await {
|
||||
Ok((stream, addr)) => {
|
||||
let config = config.clone();
|
||||
task::spawn(async move {
|
||||
if let Err(e) = handle_tcp_connection(stream, addr, config).await {
|
||||
warn!("TCP connection error: {}", e);
|
||||
}
|
||||
});
|
||||
}
|
||||
Err(e) => error!("TCP accept error: {}", e),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Handle a TCP DNS connection.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `stream` - The TCP stream.
|
||||
/// * `addr` - The client address.
|
||||
/// * `config` - The server configuration.
|
||||
///
|
||||
/// # Returns
|
||||
/// A `Result` indicating success or failure.
|
||||
pub async fn handle_tcp_connection(
|
||||
mut stream: TcpStream,
|
||||
addr: SocketAddr,
|
||||
config: ServerConfig,
|
||||
) -> Result<(), DnsError> {
|
||||
// Read the 2-byte length prefix
|
||||
let mut len_buf = [0u8; 2];
|
||||
stream.read_exact(&mut len_buf).await?;
|
||||
let len = u16::from_be_bytes(len_buf) as usize;
|
||||
|
||||
// Read the DNS query
|
||||
let mut query = vec![0u8; len];
|
||||
stream.read_exact(&mut query).await?;
|
||||
|
||||
if query.len() < 12 {
|
||||
debug!("Received malformed TCP query from {}", addr);
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
let opcode = (query[2] & 0x78) >> 3;
|
||||
if opcode != 0 {
|
||||
if let Some(response) = build_not_implemented_response(&query, config.authoritative) {
|
||||
send_tcp_response(&mut stream, &response).await?;
|
||||
}
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
let domain = match extract_domain(&query) {
|
||||
Some(d) => d,
|
||||
None => {
|
||||
info!("Failed to extract domain from TCP query");
|
||||
return Ok(());
|
||||
}
|
||||
};
|
||||
|
||||
debug!("TCP query for {} from {}", domain, addr);
|
||||
info!("Processing TCP query for domain: {}", domain);
|
||||
|
||||
let response = match generate_dns_response(&query, domain.clone(), &config).await {
|
||||
Ok(resp) => resp,
|
||||
Err(_) => {
|
||||
build_nxdomain_response(&query, config.authoritative)
|
||||
.ok_or(DnsError::Protocol("NXDOMAIN".into()))?
|
||||
}
|
||||
};
|
||||
|
||||
// Send the response (local/cache answer)
|
||||
send_tcp_response(&mut stream, &response).await?;
|
||||
Ok(())
|
||||
}
|
||||
+23
@@ -0,0 +1,23 @@
|
||||
//! NX9 DNS Server Library
|
||||
//!
|
||||
//! This library provides functionality for a DNS server implementation.
|
||||
//! It handles DNS queries over UDP and TCP, supports various record types,
|
||||
//! and can forward queries to upstream DNS servers.
|
||||
|
||||
#![allow(dead_code)]
|
||||
#[allow(unused_variables)]
|
||||
|
||||
// Define modules
|
||||
pub mod errors;
|
||||
pub mod config;
|
||||
pub mod cache;
|
||||
pub mod db;
|
||||
pub mod dns;
|
||||
pub mod handlers;
|
||||
pub mod utils;
|
||||
mod error;
|
||||
|
||||
// Re-export commonly used items
|
||||
pub use errors::DnsError;
|
||||
pub use config::ServerConfig;
|
||||
pub use cache::DnsCache;
|
||||
+69
@@ -0,0 +1,69 @@
|
||||
//! NX9 DNS Server
|
||||
//!
|
||||
//! A DNS server implementation that supports various record types and can forward
|
||||
//! queries to upstream DNS servers.
|
||||
//!
|
||||
//! Author: Sunil Purushottam Thakare
|
||||
#![allow(dead_code)]
|
||||
#[allow(unused_variables)]
|
||||
|
||||
use log::info;
|
||||
use tokio::{signal, task};
|
||||
|
||||
use nx9_dns_server::{
|
||||
cache::{CACHE, CACHE_CLEANUP_INTERVAL},
|
||||
config::ServerConfig,
|
||||
db::init_db,
|
||||
errors::DnsError,
|
||||
handlers::{run_tcp_server, run_udp_server},
|
||||
};
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> Result<(), DnsError> {
|
||||
// Initialize the logger
|
||||
env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("info"))
|
||||
.format_timestamp_micros()
|
||||
.init();
|
||||
|
||||
// Load configuration from environment variables
|
||||
let config = ServerConfig::from_env()?;
|
||||
|
||||
// Initialize cache with NS records from config
|
||||
let cache = CACHE.get_or_init(|| nx9_dns_server::cache::DnsCache::new(config.ns_records.clone()));
|
||||
|
||||
// Initialize the database
|
||||
init_db(&config.db_path, &config.default_domain, &config.default_ip)?;
|
||||
|
||||
// Set up cache cleanup task
|
||||
let cache_cleanup = task::spawn({
|
||||
let cache = cache.clone();
|
||||
async move {
|
||||
let mut interval = tokio::time::interval(CACHE_CLEANUP_INTERVAL);
|
||||
loop {
|
||||
interval.tick().await;
|
||||
cache.cleanup();
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
// Set up shutdown signal handler
|
||||
let shutdown_signal = async {
|
||||
signal::ctrl_c().await.expect("Failed to listen for shutdown signal");
|
||||
info!("Shutdown signal received");
|
||||
};
|
||||
|
||||
// Start UDP and TCP servers
|
||||
let udp_server = run_udp_server(config.clone());
|
||||
let tcp_server = run_tcp_server(config.clone());
|
||||
|
||||
// Wait for either a shutdown signal or server error
|
||||
tokio::select! {
|
||||
_ = shutdown_signal => {
|
||||
info!("Initiating graceful shutdown...");
|
||||
cache_cleanup.abort();
|
||||
Ok(())
|
||||
},
|
||||
res = udp_server => res,
|
||||
res = tcp_server => res,
|
||||
}
|
||||
}
|
||||
+427
@@ -0,0 +1,427 @@
|
||||
//! Utility functions for DNS operations.
|
||||
//!
|
||||
//! This module provides helper functions for parsing and encoding DNS data.
|
||||
#![allow(dead_code)]
|
||||
#[allow(unused_variables)]
|
||||
|
||||
use std::str;
|
||||
use chrono::{NaiveDateTime, TimeZone, Utc};
|
||||
|
||||
use crate::errors::DnsError;
|
||||
|
||||
/// Extract the domain name from a DNS query packet.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `query` - The DNS query packet.
|
||||
///
|
||||
/// # Returns
|
||||
/// An `Option` containing the domain name if successfully extracted.
|
||||
pub fn extract_domain(query: &[u8]) -> Option<String> {
|
||||
if query.len() < 12 {
|
||||
return None; // DNS header is 12 bytes
|
||||
}
|
||||
|
||||
let mut pos = 12; // Start after header
|
||||
let mut domain = String::new();
|
||||
|
||||
// Extract QNAME (domain)
|
||||
loop {
|
||||
if pos >= query.len() {
|
||||
return None;
|
||||
}
|
||||
|
||||
let len = query[pos] as usize;
|
||||
if len == 0 {
|
||||
break; // End of QNAME
|
||||
}
|
||||
pos += 1;
|
||||
|
||||
if pos + len > query.len() {
|
||||
return None; // Invalid length
|
||||
}
|
||||
|
||||
if !domain.is_empty() {
|
||||
domain.push('.');
|
||||
}
|
||||
|
||||
let label = match str::from_utf8(&query[pos..pos + len]) {
|
||||
Ok(l) => l,
|
||||
Err(_) => return None, // Invalid UTF-8
|
||||
};
|
||||
domain.push_str(label);
|
||||
pos += len;
|
||||
}
|
||||
|
||||
// Skip QTYPE and QCLASS (4 bytes)
|
||||
pos += 4;
|
||||
|
||||
// Verify we have enough data for at least QTYPE/QCLASS
|
||||
if pos > query.len() {
|
||||
return None;
|
||||
}
|
||||
|
||||
Some(domain)
|
||||
}
|
||||
|
||||
/// Extract the query type from a DNS query packet.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `query` - The DNS query packet.
|
||||
///
|
||||
/// # Returns
|
||||
/// An `Option` containing the query type as a u16 if successfully extracted.
|
||||
pub fn extract_query_type(query: &[u8]) -> Option<u16> {
|
||||
if query.len() < 12 {
|
||||
return None; // DNS header is 12 bytes
|
||||
}
|
||||
|
||||
let mut pos = 12; // Start after header
|
||||
|
||||
// Skip QNAME
|
||||
loop {
|
||||
if pos >= query.len() {
|
||||
return None;
|
||||
}
|
||||
|
||||
let len = query[pos] as usize;
|
||||
if len == 0 {
|
||||
pos += 1;
|
||||
break; // End of QNAME
|
||||
}
|
||||
|
||||
pos += len + 1;
|
||||
}
|
||||
|
||||
// Get QTYPE (2 bytes after QNAME)
|
||||
if pos + 1 < query.len() {
|
||||
Some(((query[pos] as u16) << 8) | query[pos + 1] as u16)
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
|
||||
/// Encode a domain name in DNS wire format.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `name` - The domain name to encode.
|
||||
///
|
||||
/// # Returns
|
||||
/// A vector of bytes containing the encoded domain name.
|
||||
pub fn encode_dns_name(name: &str) -> Vec<u8> {
|
||||
let mut out = Vec::new();
|
||||
for part in name.trim_end_matches('.').split('.') {
|
||||
if part.len() > 63 {
|
||||
continue; // Skip invalid labels
|
||||
}
|
||||
out.push(part.len() as u8);
|
||||
out.extend_from_slice(part.as_bytes());
|
||||
}
|
||||
out.push(0); // Null terminator
|
||||
out
|
||||
}
|
||||
|
||||
/// Parse a signature time in YYYYMMDDHHMMSS format to seconds since epoch.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `s` - The signature time string.
|
||||
///
|
||||
/// # Returns
|
||||
/// A `Result` containing the parsed time as a u32 or an error.
|
||||
pub fn parse_sig_time(s: &str) -> Result<u32, DnsError> {
|
||||
let dt = NaiveDateTime::parse_from_str(s, "%Y%m%d%H%M%S")
|
||||
.map_err(|e| DnsError::Config(format!("Invalid sigtime: {e}")))?;
|
||||
Ok(Utc.from_utc_datetime(&dt).timestamp() as u32)
|
||||
}
|
||||
|
||||
/// Check if a DNS query packet has an OPT record (EDNS).
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `query` - The DNS query packet.
|
||||
///
|
||||
/// # Returns
|
||||
/// A boolean indicating whether the query has an OPT record.
|
||||
pub fn has_opt_record(query: &[u8]) -> bool {
|
||||
if query.len() < 12 {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Get ARCOUNT (number of additional records)
|
||||
let arcount = ((query[10] as u16) << 8) | query[11] as u16;
|
||||
if arcount == 0 {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Skip header
|
||||
let mut pos = 12;
|
||||
|
||||
// Skip question section
|
||||
// First skip QNAME
|
||||
loop {
|
||||
if pos >= query.len() {
|
||||
return false;
|
||||
}
|
||||
let len = query[pos] as usize;
|
||||
if len == 0 {
|
||||
pos += 1;
|
||||
break;
|
||||
}
|
||||
pos += len + 1;
|
||||
}
|
||||
|
||||
// Skip QTYPE and QCLASS
|
||||
pos += 4;
|
||||
|
||||
// Skip answer and authority sections
|
||||
let ancount = ((query[6] as u16) << 8) | query[7] as u16;
|
||||
let nscount = ((query[8] as u16) << 8) | query[9] as u16;
|
||||
|
||||
for _ in 0..(ancount + nscount) {
|
||||
// Skip name
|
||||
if pos >= query.len() {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Handle compression pointers
|
||||
if (query[pos] & 0xC0) == 0xC0 {
|
||||
pos += 2; // Skip compression pointer
|
||||
} else {
|
||||
// Skip labels
|
||||
loop {
|
||||
if pos >= query.len() {
|
||||
return false;
|
||||
}
|
||||
let len = query[pos] as usize;
|
||||
if len == 0 {
|
||||
pos += 1;
|
||||
break;
|
||||
}
|
||||
pos += len + 1;
|
||||
}
|
||||
}
|
||||
|
||||
// Skip TYPE, CLASS, TTL, RDLENGTH, RDATA
|
||||
if pos + 10 > query.len() {
|
||||
return false;
|
||||
}
|
||||
let rdlength = ((query[pos + 8] as usize) << 8) | query[pos + 9] as usize;
|
||||
pos += 10 + rdlength;
|
||||
}
|
||||
|
||||
// Check additional records for OPT
|
||||
for _ in 0..arcount {
|
||||
if pos >= query.len() {
|
||||
return false;
|
||||
}
|
||||
|
||||
// OPT record has empty (root) name
|
||||
if query[pos] == 0 {
|
||||
// Check if TYPE is OPT (41)
|
||||
if pos + 2 < query.len() && query[pos + 1] == 0 && query[pos + 2] == 41 {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
// Skip this record
|
||||
if pos + 10 >= query.len() { break; }
|
||||
let rdlength = ((query[pos + 8] as usize) << 8) | query[pos + 9] as usize;
|
||||
pos += 10 + rdlength;
|
||||
}
|
||||
|
||||
false // No OPT record found
|
||||
}
|
||||
|
||||
/// Extract the EDNS payload size from a DNS query packet.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `query` - The DNS query packet.
|
||||
///
|
||||
/// # Returns
|
||||
/// An `Option` containing the EDNS payload size if found.
|
||||
pub fn extract_edns_payload_size(query: &[u8]) -> Option<u16> {
|
||||
if query.len() < 12 {
|
||||
return None;
|
||||
}
|
||||
|
||||
// Get ARCOUNT (number of additional records)
|
||||
let arcount = ((query[10] as u16) << 8) | query[11] as u16;
|
||||
if arcount == 0 {
|
||||
return None;
|
||||
}
|
||||
|
||||
// Skip header
|
||||
let mut pos = 12;
|
||||
|
||||
// Skip question section
|
||||
// First skip QNAME
|
||||
loop {
|
||||
if pos >= query.len() {
|
||||
return None;
|
||||
}
|
||||
let len = query[pos] as usize;
|
||||
if len == 0 {
|
||||
pos += 1;
|
||||
break;
|
||||
}
|
||||
pos += len + 1;
|
||||
}
|
||||
|
||||
// Skip QTYPE and QCLASS
|
||||
pos += 4;
|
||||
|
||||
// Skip answer and authority sections
|
||||
let ancount = ((query[6] as u16) << 8) | query[7] as u16;
|
||||
let nscount = ((query[8] as u16) << 8) | query[9] as u16;
|
||||
|
||||
for _ in 0..(ancount + nscount) {
|
||||
// Skip name
|
||||
if pos >= query.len() {
|
||||
return None;
|
||||
}
|
||||
|
||||
// Handle compression pointers
|
||||
if (query[pos] & 0xC0) == 0xC0 {
|
||||
pos += 2; // Skip compression pointer
|
||||
} else {
|
||||
// Skip labels
|
||||
loop {
|
||||
if pos >= query.len() {
|
||||
return None;
|
||||
}
|
||||
let len = query[pos] as usize;
|
||||
if len == 0 {
|
||||
pos += 1;
|
||||
break;
|
||||
}
|
||||
pos += len + 1;
|
||||
}
|
||||
}
|
||||
|
||||
// Skip TYPE, CLASS, TTL, RDLENGTH, RDATA
|
||||
if pos + 10 > query.len() {
|
||||
return None;
|
||||
}
|
||||
let rdlength = ((query[pos + 8] as usize) << 8) | query[pos + 9] as usize;
|
||||
pos += 10 + rdlength;
|
||||
}
|
||||
|
||||
// Check additional records for OPT
|
||||
for _ in 0..arcount {
|
||||
if pos >= query.len() {
|
||||
return None;
|
||||
}
|
||||
|
||||
// OPT record has empty (root) name
|
||||
if query[pos] == 0 {
|
||||
// Check if TYPE is OPT (41)
|
||||
if pos + 5 < query.len() && query[pos + 1] == 0 && query[pos + 2] == 41 {
|
||||
// Extract UDP payload size (CLASS field in OPT record)
|
||||
return Some(((query[pos + 3] as u16) << 8) | query[pos + 4] as u16);
|
||||
}
|
||||
}
|
||||
|
||||
// Skip this record
|
||||
if pos + 10 >= query.len() { break; }
|
||||
let rdlength = ((query[pos + 8] as usize) << 8) | query[pos + 9] as usize;
|
||||
pos += 10 + rdlength;
|
||||
}
|
||||
|
||||
None // No OPT record found
|
||||
}
|
||||
|
||||
/// Extract the DO (DNSSEC OK) bit from a DNS query packet.
|
||||
///
|
||||
/// # Arguments
|
||||
/// * `query` - The DNS query packet.
|
||||
///
|
||||
/// # Returns
|
||||
/// A boolean indicating whether the DO bit is set.
|
||||
pub fn extract_do_bit(query: &[u8]) -> bool {
|
||||
if query.len() < 12 {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Get ARCOUNT (number of additional records)
|
||||
let arcount = ((query[10] as u16) << 8) | query[11] as u16;
|
||||
if arcount == 0 {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Skip header
|
||||
let mut pos = 12;
|
||||
|
||||
// Skip question section
|
||||
// First skip QNAME
|
||||
loop {
|
||||
if pos >= query.len() {
|
||||
return false;
|
||||
}
|
||||
let len = query[pos] as usize;
|
||||
if len == 0 {
|
||||
pos += 1;
|
||||
break;
|
||||
}
|
||||
pos += len + 1;
|
||||
}
|
||||
|
||||
// Skip QTYPE and QCLASS
|
||||
pos += 4;
|
||||
|
||||
// Skip answer and authority sections
|
||||
let ancount = ((query[6] as u16) << 8) | query[7] as u16;
|
||||
let nscount = ((query[8] as u16) << 8) | query[9] as u16;
|
||||
|
||||
for _ in 0..(ancount + nscount) {
|
||||
// Skip name
|
||||
if pos >= query.len() {
|
||||
return false;
|
||||
}
|
||||
|
||||
// Handle compression pointers
|
||||
if (query[pos] & 0xC0) == 0xC0 {
|
||||
pos += 2; // Skip compression pointer
|
||||
} else {
|
||||
// Skip labels
|
||||
loop {
|
||||
if pos >= query.len() {
|
||||
return false;
|
||||
}
|
||||
let len = query[pos] as usize;
|
||||
if len == 0 {
|
||||
pos += 1;
|
||||
break;
|
||||
}
|
||||
pos += len + 1;
|
||||
}
|
||||
}
|
||||
|
||||
// Skip TYPE, CLASS, TTL, RDLENGTH, RDATA
|
||||
if pos + 10 > query.len() {
|
||||
return false;
|
||||
}
|
||||
let rdlength = ((query[pos + 8] as usize) << 8) | query[pos + 9] as usize;
|
||||
pos += 10 + rdlength;
|
||||
}
|
||||
|
||||
// Check additional records for OPT
|
||||
for _ in 0..arcount {
|
||||
if pos >= query.len() {
|
||||
return false;
|
||||
}
|
||||
|
||||
// OPT record has empty (root) name
|
||||
if query[pos] == 0 {
|
||||
// Check if TYPE is OPT (41)
|
||||
if pos + 7 < query.len() && query[pos + 1] == 0 && query[pos + 2] == 41 {
|
||||
// Check DO bit (bit 15 of TTL field, which is used for flags in OPT)
|
||||
return (query[pos + 6] & 0x80) != 0;
|
||||
}
|
||||
}
|
||||
|
||||
// Skip this record
|
||||
if pos + 10 >= query.len() { break; }
|
||||
let rdlength = ((query[pos + 8] as usize) << 8) | query[pos + 9] as usize;
|
||||
pos += 10 + rdlength;
|
||||
}
|
||||
|
||||
false // No OPT record found or no DO bit set
|
||||
}
|
||||
@@ -0,0 +1,13 @@
|
||||
#!/bin/bash
|
||||
export DNS_BIND=0.0.0.0:53
|
||||
export DNS_ENABLE_IPV6=1
|
||||
export DNS_MAX_PACKET_SIZE=4096
|
||||
export DNS_DB_PATH=/var/nx9-dns-server/dns.db
|
||||
export DNS_NS_RECORDS=ns1.yourdomain.tld.,ns2.yourdomain.tld.
|
||||
export DNS_AUTHORITATIVE=1
|
||||
export DNS_CACHE_TTL=300
|
||||
export RUST_LOG=info
|
||||
export DNS_DEFAULT_DOMAIN=yourdomain.tld
|
||||
export DNS_DEFAULT_IP=<YOUR-PUBLIC-IP4>
|
||||
|
||||
exec /var/dns-server/nx9-dns_server
|
||||
Reference in new issue
Block a user