Every Red Hat Linux distribution includes networking support and tools that can be used to configure your network. In this section you’ll learn how to configure a computer for connection to an internal and external network. Even if the computer is not connected to outside networks, an internal network functionality is required for some applications. This address is known as the loopback and its IP address is 127.0.0.1.
You should check that this network interface is working before configuring your network cards. To do this, you can use the ifconfig utility to get some information. If you type ifconfig at a console prompt, you will be shown your current network interface configuration. Make sure the loopback (IP address 127.0.0.1) is working before you begin to configure your network cards. If your loopback is configured, the ifconfig shows a device called lo with the address 127.0.0.1.
You should check that this network interface is working before configuring your network cards. To do this, you can use the ifconfig utility to get some information. If you type ifconfig at a console prompt, you will be shown your current network interface configuration. Make sure the loopback (IP address 127.0.0.1) is working before you begin to configure your network cards. If your loopback is configured, the ifconfig shows a device called lo with the address 127.0.0.1.
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