A Study on a Full-node Problem of the Domain Name System based on Ethereum

Domain Name System(DNS) is a crucial component for us to access the Internet. However, it is vulnerable to several attacks such as DNS Cache Poisoning Attack and DNS DDoS Attack. Because of the high security promised by the Blockchain technology, we investigate the domain name systems based on blockchain, and focus on Ethereum Name Service(ENS). In this paper, we propose an ENS-oriented light node in order to solve the Full-node problem which means each participant has to hold a large amount data.