Check Domain Name Server information

We switched the IP address for a server, and it was working on campus, but not off campus.  Needed to use a DNS off campus to test this. 
Used  NSLOOKUP command with this format:

NSLOOKUP  <domain you want to check>  <outside DNS>

In Windows, goto CMD window, from Apple, goto Terminal window

example:


C:>nslookup  check.this.domain.edu 8.8.8.8
Server:  google-public-dns-a.google.com
Address:  8.8.8.8

Non-authoritative answer:
Name:    check.this.domain.edu
Address:  74.217.nnn.nnn

More details of nslookup from CMD prompt in windows.