Red Hat Linux 6.2: The Official Red Hat Linux Reference Guide
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# Naming Your Computer

The `Hostname Configuration` dialog prompts you to enter a name for your computer (called a hostname).

Figure 10-26. Hostname Configuration Dialog

If you have a network card in your computer, enter a fully-qualified domain name in this format:

``hostname`.`domain.name``

In this example, ``hostname`` is the name you've chosen for your computer and ``domain.name`` is the TCP/IP domain. (A domain name may contain more nodes: for example, eastcoast.mainserver.redhat.com and westcoast.mainserver.redhat.com.)

Even if your computer is not part of a network, you can enter a hostname for your system. Take this opportunity to enter in a name; if you do not, your system will be known as `localhost`.

| Tip
| To change your hostname once you have rebooted your system, first become root. In a terminal at the root prompt, type hostname `newname`, where `newname` is what you want the hostname to be. If you just want to have the hostname echoed onto the display, type hostname and it will display the system's hostname.

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