IP address refers to Internet protocol address, which is the abbreviation of IP address. IP address is a unified address format provided by IP protocol, which assigns a logical address to each network and each host on the Internet to shield the difference of physical addresses.

DNS server address is a distributed database on the Internet, which maps domain names and IP addresses. It enables users to access the Internet more conveniently without having to remember the IP strings that can be read directly by the machine. The process of finally getting the IP address corresponding to the host name is called domain name resolution.

The difference between ip address and dns server address is that ip address refers to the unique IP address of a single host, while DNS server address is the address used for domain name resolution.