How to trace IP back to provider 1

[garwain]

How would I trace an IP address back to the ISP that leased it out? I am seeing an unfamiliar address accessing certain pages on one of my websites.

 

[cyoung]

you can use whois to do this. There is a switch to tell it to lookup the owner of an IP address (man whois)

Hope this helps!

 

[RobJordan]

maybe this will work for you?

traceroute [ip address] Robert G. Jordan

Robert@JORDAN2000.com

http://www.JORDAN2000.com/scripts

Unix Sys Admin
Chicago, Illinois U.S.A.

 

[DumTech]

Or you may want 'dig -x y.y.y.y' followed by a 'whois' on the domain the dig turns up. Matt
matt@paperlove.org
If I can help, I will.