Different types of domain names (DNS)

On the basis of this domain name, the next level domain name can be established, for example, the domain name of the school homepage is www.imau.edu.cn, and the domain name of the service portal is i.imau.edu.cn. In this way, when visiting the school homepage and service portal, you don't need to remember the IP addresses of these two websites, just remember the domain name, and you can know that the website belongs to Inner Mongolia Agricultural University when you see that the domain name ends in imau.edu.cn.

Domain name service is provided through a domain name server. At present, Inner Mongolia Agricultural University provides two domain name servers: dns.imau.edu.cn(202. 207. 48. 3)? Primary domain name server; ns.imau.edu.cn？ ( 202.207.48.4 ) ? Secondary domain name server.