User's Manual

Section 3.13:Firewall Configuration 43
Note
Do not use the numbers as seen in this sample configuration. These values
will not work for your own network configuration. If you are not sure what
values to enter, contact your network administrator for assistance.
If you have a fully qualified domain name for the network device, enter it in the Hostname field.
Tip
Even if your computer is not part of a network, you can enter a hostname
for your system. If you do not take this opportunity to enter in a name, your
system will be known as localhost.
Finally, enter the Gateway and Primary DNS (and if applicable the Secondary DNS and Ternary
DNS
) addresses.
3.13 Firewall Configuration
Red Hat Linux offers firewall protection for enhanced system security. A firewall exists between your
computer and the network, and determines which resources on your computer remote users on the
network can access. A properly configured firewall can greatly increase the security of your system.
Choose the appropriate security level for your system.