Networks are complex computing environments. You must coordinate your computer's configuration with the setup of your network.
If errors in configuration do occur, Red Hat Linux provides the tools you need to find and correct the problems.
Accessing networks over modem lines requires the configuration of your modem, PPP interface, and dial-up connections.
Red Hat Linux also comes with graphical tools to make these configurations and connections happen easily.

After completing this module, you will be able to:

1. Describe the function of netstat, arp, and ifconfig
   
2. Use the ping command to troubleshoot connectivity problems
   
3. Use the ifconfig command to resolve TCP/IP problems
   
4. Use the arp -a command to resolve TCP/IP problems
   
5. Use the route command to set your default gateway
   
6. Configure a modem to create a new PPP connection
   
7. Use the Dialup Configuration Tool to configure a PPP connection
   
8. Use RP3 to activate a PPP connection

The next lesson describes the tools for network configuration and maintenance.