The Domain Name System (DNS) is essentially the telephone book of the Internet. This service is what guides your computer to a website when you type the address--www.Techwalla.com, for instance--into your Internet browser. If you did not have a DNS server directing your Internet, you would have to manually enter the IP address of every website you wanted to visit. DNS servers, like all servers on the Internet, have a fixed IP address as well, and finding that address is quite simple.
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Click the Start menu and select \"Run.\"
Type \"cmd\" into the text box that appears and press \"Enter.\"
Type \"cd/\" into the command prompt window that appears, then press \"Enter.\"
Type \"C:>ipconfig /all\" and press \"Enter.\" This will present a screen full of information, including the primary and secondary DNS server addresses down near the bottom, which look like a series of numbers separated by dots as in 192.168.1.2, for example.