DNS Server in Rust

This repository contains the code for a DNS server implemented in Rust, as part of the tutorial Building a DNS Server in Rust . The tutorial covers:

• Understanding DNS requests and responses.
• Handling UDP packets in Rust.
• Parsing and constructing DNS packets.
• Implementing decompression of DNS packets.
• Forwarding DNS queries to resolvers.

📖 Tutorial

For a step-by-step guide, check out the full tutorial: Building a DNS Server in Rust: Part 1 of 2

🛠 Installation

Ensure you have Rust installed:

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

Clone this repository:

git clone https://github.com/Rust-Trends/dns-server-tutorial.git
cd dns-server-tutorial

🚀 Running the Server

Goto to the step you want to explore, e.g. step1, and start the DNS server on port 1053:

cd step1
cargo run

🔍 Testing with dig

To test your server, open another terminal and run:

dig @localhost -p 1053 www.rust-trends.com

🤝 Contributions

Feel free to open issues or submit pull requests to improve the project!

📜 License: MIT