Installation guide

Chapter 6. Network Configuration 83
After configuring the wireless device, it appears in the device list as shown in Figure 6-13.
Figure 6-13. Wireless Device
Be sure to click Apply to save the changes.
After adding the wireless device, you can edit its configuration by selecting the device from
the device list and clicking Edit. For example, you can configure the device to activate at
boot time.
When the device is added, it is not activated, as seen by its Inactive status. To activate the
device, select if from the device list, and click the Activate button.
6.9. 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
file, the name servers are not used. If your network contains computers whose IP addresses
are not listed in DNS, it is recommended that you add them to the /etc/hosts file.
To add an entry to the /etc/hosts file, click Add in the Hosts tab, provide the requested
information, and click OK. Click Apply to write the entry to the file.
Warning
Do not remove the localhost entry.