DNS Resolution of Log Files with Numeric IP Addresses

[Charles W. Bailey, Jr.]

I'm looking for a program that will take a Web log with
numeric IP addresses, do a DNS lookup on them, and
write the resolved address back to the log file.  I am
interested in doing this so that there is a permanent 
record of the resolved address in a log file that can be 
analyzed at any future date without having to deal
with the problem that IP addresses constantly
change.  (I know that Web servers can do DNS
resolution as they write logs; that feature has been
turned off for performance reasons).

Ideally, this program would run under Windows XP
either in cmd or graphic mode.

Any ideas?

Thanks for your help.


Best Regards,
Charles

Charles W. Bailey, Jr., Assistant Dean for Digital Library
Planning and Development, University of Houston,
Library Administration, 114 University Libraries,
Houston, TX 77204-2000.  E-mail: cbailey at uh.edu.
Voice: (713) 743-9804.  Fax: (713) 743-9811.
http://info.lib.uh.edu/cwb/bailey.htm