It appears you are not a Professional System Administrator (or similar). Questions about software that runs on a "server" (a pretty meaningless classification in the broad scheme of things) aren't automatically on-topic on [Server Fault](http://serverfault.com).

Please have a look through our [FAQ](http://serverfault.com/faq). Once done, take a look at [Super User](http://superuser.com) and [Unix & Linux](http://unix.stackexchange.com), as these sites are more appropriate for user questions.

Any question that can be simply answered by "Read the Friendly Manual" and pointing to a semi-obvious spot in the documentation is off-topic for [Server Fault](http://serverfault.com).