If you have added a networking interface to your machine since installing Red Hat Linux, or you didn't configure your ethernet card at install time, you can configure it with a few clicks of a mouse. Begin by clicking on Interfaces in the main panel. This will bring up a window of configured devices with a row of available options, see figure 8.6.
Figure 8.6: Configured Interfaces
To add a device, first click the Add button then select the type of interface you want to configure from the box that appears. (Figure 8.7)
Figure 8.7: Choose Interface Type