Posted by Kevin A. on 14 June 2012 11:15 AM
Before you begin, you may wish to review the cPanel Apache Configuration Guide.
You can also stop other services, but these have the highest memory usage. You can check available memory with the "free" command:
You'll need at least 150-200 MB free.
Once you have freed enough memory, you can run the EasyApache utility.
You'll see an option to load several "pre-configured" settings. In general, you'll want to use your existing configuration, Previously Saved Config.
To move around, the Up and down arrows will scroll, the tab key will switch between sections, and space bar will select/deselect.
Select the version of Apache you wish to run, 1.3/2.0/2.2. (latest version is always preferred)
You'll then have the option to select the PHP version you want. Version 4 has been discontinued by the PHP Group (no more updates, including security fixes, will ever be provided), so version 5 is very highly recommended. It offers significant speed improvements over prior versions. You may select either or both. If you want to run multiple versions of PHP. (Again latest version is preferred for PHP Security and stablility)
There are also many other common options already selected for you, leave these selected.