Need to log client IP address in clustered environment

[Toby Eggitt]

Hi all,

I need to log the client IP address of http requests made of a JBoss cluster.

In this case, the source of the http request is actually an F5 load balancer, but that device provides the original client IP as an http field. How can I get that information into the logfile?

I've tried to hunt down documentation, but have failed. If anyone can point me at relevant docs, that would be great. Or any clue would be helpful.

Many thanks in advance,
Cheers,
Toby.

[Kees Jan Koster]

Dear Toby,

Here is a discussion how to use the HTTP x-forwarded-for from code. The code snippet is designed for use behind an Apache httpd, but it will work for an F5 big ip, provided it is configured to insert that HTTP header when it load balances your HTTP requests.