Introducing UNIX and Linux

Maintaining your Linux OS

Overview
Basic management
      Passwords
      Checking storage space
      Checking processes
      Managing users
      Shutting down and restarting your computer
      Automating tasks
Linux file management
      File compression and archiving tools
      File managers
      File splitters
Linux networking
      Getting started
      MAC and IP addresses
      Domain names
      Adding a Linux host to an existing network
      Building a private network
      Configuring the network interface
Security
Uninstalling Linux
Summary

Domain names

IP addresses are not easy to remember and therefore computers are usually referred to using their domain name. You will be familiar with the use of domain names when accessing sites on the Internet. These domain names are mapped to IP addresses through a Domain Name Service (a DNS).

The domain name for the IP address 137.205.227.85 is cement.dcs.warwick.ac.uk. The host machine cement maps to the host portion 85 in the IP address; the 227 part of the network portion of the IP address corresponds to the dcs (Department of Computer Science) network; the 137.205 part of the IP address maps to warwick.ac.uk. The University of Warwick may not own all the class B 137.205 network addresses; the slice of addresses they own is coordinated by UKERNA - the organisation that administers all of the .ac and .gov domain names in the UK.