PixelDNS

PixelDNS is a fully functional DNS server built from scratch in Java, inspired by the Codecrafters "Build Your Own DNS Server" guide. This project aims to provide a deeper understanding of DNS protocols and server implementation by creating a custom DNS server from the ground up.

Features

• Custom DNS Server: A DNS server implemented in Java, capable of handling DNS queries and responses.
• Question and Answer Handling: Supports parsing and responding to DNS queries with appropriate DNS answers.
• Configurable: Easy to configure and run with different DNS resolver IPs and ports.
• Built with Maven: Managed and built using Maven for dependency management and packaging.

Prerequisites

Before you start, ensure you have the following installed:

• Java JDK 17 or the version you prefer.
• Maven for building the project.

Installation

1. Clone the Repository:

   git clone https://github.com/ABHIGYAN-MOHANTA/PixelDNS
   cd PixelDNS

2. Compile the Project:

   By default, the project is set to use Java 17. To compile with a different Java version, use:

   chmod +x ./compile.sh
   ./compile.sh <java-version>

   Replace <java-version> with the desired version, e.g., 22, 17.

Usage

1. Run the DNS Server:

   To start the DNS server, use the run.sh script and provide the resolver IP and port as arguments:

   chmod +x ./pixel_dns.sh
   ./pixel_dns.sh

   This command will start the DNS server, listening on port 2053 and forwarding queries to the specified resolver.

2. Run the Release JAR:

   If you prefer to use the pre-built release JAR from GitHub, you can download it and run the server

    java -jar pixel_dns-1.2.jar "127.0.0.1:2053"

Configuration

The server listens for DNS queries on port 2053 by default. You can change this port in the Main.java and pixel_dns.sh file if needed.

Troubleshooting

• Java Version Issues: Ensure that the Java version specified in pom.xml and the version you use to run the project match.
• Exceptions: Check for exceptions and error messages in the terminal to debug issues related to DNS queries or network problems.

Contributing

Feel free to fork the repository and submit pull requests with improvements or bug fixes. Contributions are welcome!

Acknowledgments

• Codecrafters: For the insightful guide on building a DNS server.
• Maven: For making dependency management and build automation seamless.