can I install apache tomcat 6 and apache http web server on the same machine (Ubuntu 11.10) without problems ?
tomcat to serve GeoServer
apache web serve to serve static files
Yes, you can. They are installed on a different places. But if you would like to run them together in the same time, you need to use different listening port of the webserver.
Apache HTTP Server is installed to listen on port 80, the default webserver port (use
So in default configurations the webservers do not clashes.