How do I log someone's IP address?

[argus77]

Say I want to get everyone's IP address who accesses my site and log that IP with their activity in a log file. How would I go about this?

Thanks!

 

[argus77]

Let me clarify that by saying I want to log the IP using either JSPs or servlets, and write what information i want to a log file.

I can use request.getRemoteAddr() to get the IP, now how do I write it to a log file

Thanks!