How to find the reverse on a IP address?

[Jason Williams]

Morning everyone.

I'm having a major brain freeze this morning. I dont recall how to find the 
reverse for an IP address?

I need to do some testing with a few IP addresses, to ensure they have 
valid reverse's set, but dont recall how to check them.

If I remember, you could do it with both 'nslookup' and 'dig' correct?

Anyone have a moment to help me out here? In the meantime, it's man page 
time...

I appreciate the help.

Jason