Has anyone here run multiple installations of Apache Web server on multiple ports, but using the same IP?

I need to install Apache 2.2 on a CentOS 4.2 box. It already has Apache 2.0 installed as part of CentOS default installation package. For some reason (mostly non-technical), I cannot touch the existing Apache, so my only choice is to install my own Apache.

I plan to use port other than 80, and access my website using my own specified port. However, I need to use the same hostname (same IP). My Apache will have its own prefix, and its own httpd.conf. Both my Apache and the existing one should run "side-by-side" --I'm not allowed to stop the existing Apache while my own is running.

It seems to be possible to do the things above. However, it is something I've never done before. Port and prefix aside, is there anything else I should keep my eyes on? Any advices and/or warnings?

It is certainly doable. Every Oracle instance installs its own copy of Apache and runs it on separate ports.

Since I don't typically set that up I can't give you much guidance on the how to especially since we're doing it Oracle's way but figured knowing it can be done is half the battle.

Perhaps this is what you are looking for:

http://mail-archives.apache.org/mod_...ail.yahoo.com>