Managing Dns Settings - Red Hat LINUX 7.2 - OFFICIAL LINUX CUSTOMIZATION GUIDE Manual

Section 6.3:Managing DNS Settings 85
obtain an IP address via DHCP. Consult your Internet provider for details. After configuring the Eth-
ernet device, add an xDSL device. From the tab, select the appropriate Ethernet device to
Provider
use to establish your connection.
6.2.5 CIPE
CIPE stands for Crypto IP Encapsulation. It is used to configure an IP tunneling device. For example,
CIPE can be used to grant access from the outside world into a Virtual Private Network (VPN). If you
need to setup a CIPE device, contact your system administrator for the correct values.
6.2.6 Wireless
The tabs for Wireless configuration are similar to the tabs for an Ethernet device, except there is an
extra tab called Wireless Settings . This tab allows you to configure the network ID, mode, frequency,
channel, transmit rate, and key for the wireless device.
6.2.7 Token Ring
The Token Ring device configuration is similar to the Ethernet device configuration. There is an
additional tab.
Hardware Device

6.3 Managing DNS Settings

The tab allows you to configure the system's hostname, domain, name servers, and search do-
DNS
main. Name servers are used to look up other hosts on the network. Note, the name servers section
does not configure the system to be a name server.
The tab allows you to add, edit, or remove hosts from the /etc/hosts file. This file contains
Hosts
IP addresses and the hostnames to which the IP addresses should be resolved.
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.
To add an entry to the /etc/hosts file, click Add in the Hosts tab, provide the requested informa-
tion, and click . Click to write the entry to the file.
OK Apply