geting server name(ipaddress)

hi,
can any one say how to get the server name if we know the ipaddress

ie nslookup gives ipaddress if server name is given

in the same way can i have server name if i know ipaddress

thanks & regards
babu :o

Assuming the server name is in DNS, you should be able to use nslookup or dig to get the server name from the ip address. Not all servers are in DNS though.

Carl