Changing the Apache ports has some sideeffects. That is why we do not recommend to change the Apache ports if not really really needed. In almost all cases there are better solutions to get Apache running.

There are only a few reasons where i would recommend to change the default Apache ports:

• Another webserver is and will still be your prefered default webserver on your system
• the blocking application really needs the default webserver ports because your system is protected like fort knox

If you really want to change the Apache ports, here are the steps to be done.