12.10. Managing Hosts

The Hosts tab allows you to add, edit, or remove hosts from the /etc/hosts file. This file contains IP addresses and their corresponding hostnames.

When your system tries to resolve a hostname to an IP address or determine the hostname for an IP address, it refers to the /etc/hosts file before using the name servers (if you are using the default Red Hat Linux configuration). If the IP address is listed in the /etc/hosts/etc/hosts file.

To add an entry to the /etc/hosts file, go to the Hosts tab, click the New button on the toolbar, provide the requested information, and click OK. Select File => Save or press [Ctrl]-[S] to save the changes to the /etc/hosts file. The network or network services do not need to be restarted since the current version of the file is referred to each time an address is resolved.

	Warning
	Do not remove the localhost

	Tip
	To change lookup order, edit the /etc/host.conf file. The line order hosts, bind specifies that the /etc/hosts takes precedence over the name servers. Changing the line to order bind, hosts in the /etc/hosts file.