Web3 DNS System with PoR, Rate Limiting, and Attack Simulation

Abstract

The Domain Name System (DNS) is an indispensable part of the internet’s infrastructure, allowing humans to enter human readable domain names into a computer and the computer will translate it to machine readable IP addresses. However, both the traditional DNS systems have several security, privacy, and scalability issues because of the centralized nature. This paper describes the design and implementation of a Web3 decentralized DNS system on top of the blockchain technology based on Ethereum smart contracts. The Web3 DNS system distributes domain registration, resolution and management in a way that is transparent and unbreakably secured, scalable and insanely fast. It’s a system with integrated criticals such as Proof of Request (PoR) for logging all actions and rate limiting to stop abusing the system. In this paper we explore the root components of the Web3 DNS system such as: domain management via a smart contract, PoR logging and rate limiting. This Web3 DNS is tested with the performance tests and compared to the traditional DNS systems for the handling of domain related transactions with improved security and decentralization. Furthermore, blockchain usage in the system leads to the immutable and transparent record of all actions, decreasing the danger of DNS hijacking and other evil activities. This work tries to bring a robust, transparent and censorship resistant alternative to existing DNS infrastructures. Future work will attempt to scale the system and enhance the capability of interoperating with existing, legacy DNS infrastructure.