Key Research On Technologies Of DNS Detection In Complex Cyberspace

With the continuous progress of Internet technology and the continuous development of Internet scale,the number of resolution lines sent to DNS resolver by various mobile terminals and traditional computers has multiplied,and many network security problems have become increasingly prominent.Because DNS domain name resolution system plays a very important role in the Internet,we can study how to obtain the specific DNS server and its service status through some or many methods,and then serve the DNS network security,providing accurate and detailed basic data for it.In this paper,we use network measurement technology,through active measurement and passive measurement,to explore the current domestic DNS.Whether the traditional DNS message is not encrypted transmission,or now the emerging DNS transmission message after encryption is measured in an all-round way,so as to get the domestic DNS distribution deployment and the distribution topology of DNS related facilities.Through the measurement of traditional DNS and encrypted DNS in China,this paper summarizes the current development of DNS in China,evaluates the development trend of DNS in China,and focuses on the situation assessment analysis and Prospect of Jiangsu Province and Nanjing city.At the same time,through the detection of DNS in China,we can get the general situation of the current deployment of DNS in China,and give some suggestions for the better development of DNS in China.