[ Thanks to John
Gowin for this link. ]
“So, you want to set up a Apache server using more than one
domain name and only one IP address. No problem!! Well, I say no
problem, but it took me a while to figure it out and I’m here to
tell you what I learned to save you some time and trouble. I am
using Apache2 on a Red Hat 8.0 system, however I will keep this as
generic as possible without leaving out any of the details. First,
we will edit the Apache httpd.conf by hand using your favorite text
editor, then I will show you how to do it with a GUI called
apacheconf. To go straight to the apacheconf instructions, click
here. Depending on your Linux distribution, you should find the
httpd.conf file in /etc/httpd/conf or /etc/apache/conf.“First things first. Be sure to copy your clean or working
httpd.conf file to a safe place on your server. This provides you
with a back-up if you mangle the copy of your httpd.conf file that
you are working on. Just move the clean or working copy of your
httpd.conf file back into your configuration directory and you’re
back in business. Take it from me, that little tip has pulled me
out of more jams than I can count…!”