running multiple instances

listening on different ports

[foy]

hey there. hope you all had a nice and refreshing weekend ;)

so, I'm running one default apache instance on my machine (listening on port 80) and want to add a second instance which should simply listen on port 8080 (not a proxy) and forward all incoming connections to a specified DocRoot.

First of all: I've never done that before and am testing.
I've read somewhere that this could be done by simply copying the httpd.conf to anotherfile.conf and alterning the Portlisten directives as well as the vhost configuration.

But... whatever I'm doing, when I try to access the server via browser using format [ip.adress:8080...] it says connection refused. The firewall is properly configured.

Is there anything more I do have to configure?
One more thing I should mention: I have Plesk running which has created some <Virtualhost directives for the external domain (standart values for port 80). Do I have to alter these includes maybe?

Thanks in advance