Lesson 12
TCP-IP Configuration Conclusion
What are the key points to know about TCP-IP Configuration?
In this module you learned:
TCP-IP Key terms
- How to set up the three key elements of TCP/IP configuration on a UNIX machine
- How to use the resolv.conf file
- How to use the nsswitch.conf file
- How to use the /etc/hosts file to arrange for name service
- How to use the ifconfig command to configure interfaces
- How to use the route command to manipulate the routing table
- The significance of the ARP cache, and how to examine it using arp
In this module, we introduced the following terms:
Linux Commands - Domain Name Service (DNS) : Domain Name Service: resolves domain names to IP addresses
- Ethernet: A LAN developed by Xerox in 1976. Ethernet became a widely implemented network from which the IEEE 802.3 standard for contention networks was developed. It uses a bus topology and the original Ethernet relies on CSMA/CD to regulate traffic on the linux-network-administration communication line.
- Gateway: A machine which links two networks.
- Loopback address: 127.0.0.1. This address is used for diagnostics.
- Netmask : A 32-bit bit mask which shows how an Internet address is to be divided into network, subnet and host parts.
- Network Information Database: The NID (Network Information Database) provides a means to synchronize account information across computer systems.
- Point-to-point protocol (PPP): A protocol for connecting to the Internet. PPP provides error checking and compression of the IP and TCP headers.
- Resolver library: The TCP/IP protocol library software that formats requests to be sent to the Dolinux-network-administration Name Server for hostname to Internet address conversion.
- TCP/IP: TCP/IP is the network protocol suite used by the Internet and most local area networks.
- Telnet: A TCP/IP application that is used for remote terminal access and can be used to administer a UNIX machine.
In this module, we discussed the following commands:
| Command | Purpose |
| arp | View and manipulate the ARP cache |
| dmesg | Display boot messages |
| hostname | Set the host name |
| ifconfig | Configure an interface |
| netstat -nr | Dump the routing table |
| ping | Check for network connectivity |
| route | View and manipulate the routing table |
| uname | Return host name |
DNS Resolver Library - Quiz
Click the Quiz link below to take a short multiple-choice quiz on the material covered in this module.
DNS Resolver Library - Quiz
DNS Resolver Library - Quiz
