Troubleshooting TCP/IP connections can be difficult, but now you have a set of powerful tools to track down and fix errors.
and arp are useful tools for finding addressing problems, which arise most commonly
when network parameters are entered incorrectly on a host.
You can recheck and modify these settings to ensure proper operation using
Check the man pages of each tool for more detailed information.
When you need to connect a computer over a modem, use Red Hat's GUI tools to simplify configuration.
You have seen many of the useful utilities Red Hat provides to make a productive Internet-enabled workstation.
Having completed this module, you should now be able to:
Describe the function of
ping command to troubleshoot connectivity problems
ifconfig command to resolve TCP/IP problems
arp -a command to resolve TCP/IP problems
route command to set your default gateway
Configure a modem to create a new PPP connection
Use the Dialup Configuration Tool to configure a PPP connection
Use RP3 to activate a PPP connection
The following terms were introduced in this module:
- Address Resolution Protocol: ARP is the method Ethernet computers use to assign IP addresses to Ethernet card addresses.
- Dial-up: Refers to modem connections to ISPs usually using the PPP protocol.
- Logical link: A type of file that is a reference to another real file.
The next module covers NIS client networking.
Before moving on to the next module, click the Quiz link below to check your understanding of TCP/IP and Linux networking.
Tcp Ip Linux Networking - Quiz