I'm assuming that you have Apache 2 installed. I recommend having a read through the documents online at
http://httpd.apache.org/docs/2.0/. Then have a look for your Apache documents with:
Code:
find / -type d -name htdocs
The main Apache directory is just above the htdocs directory. Have a look for the httpd.conf file and change it based on what you read on the Apache site. The httpd.conf file can be found with:
Code:
find / -type f -name httpd.conf
The document root for Apache is often at /var/www/html