Setup guide

DescriptionNetworking Configuration File
Contains global networking settings./etc/sysconfig/network
Contains interface-specific configuration.
/etc/sysconfig/network-scripts/ifcfg-<xxx>, where
<xxx> specifies your ethernet adapter
Contains DNS server information./etc/resolv.conf
■ Enable multicasting if you are planning to access the system from a remote workstation.
To enable multicasting, open the /etc/sysconfig/network file in a text editor, add a GATEWAY keyword,
and specify the gateway IP address. Obtain the necessary information from your network administrator.
NOTE If you do not define a gateway in /etc/sysconfig/network, you must define default routes associated with
specific interfaces in /etc/sysconfig/network-scripts/ifcfg-<xxx>, where <xxx> specifies your ethernet adapter.
Note that a default route specified in the network file overrides any ifcfg-<xxx> routes. Contact your system
administrator to determine the best way to enable multicasting for your network.
28 | Chapter 4 Installing Red Hat Enterprise Linux