Learning Basic Administration Linux, like other UNIX systems, (Web space)
Learning Basic Administration Linux, like other UNIX systems, was intended for use by more than one person at a time. Multiuser features enable many people to have accounts on a single Linux system, with their data kept secure from others. Multitasking enables many people to run programs on the computer at the same time. Sophisticated networking protocols and applications make it possible for a Linux system to extend its capabilities to network users and computers around the world. The person assigned to manage all of this stuff is called the system administrator. Even if you are the only person using a Linux system, system administration is still set up to be separate from other computer use. To do most administrative tasks, you need to be logged in as the root user (also called the superuser) or temporarily get root permission. Users other than root cannot change, or in some cases even see, some of the configuration information for a Linux system. In particular, security features such as stored passwords are protected from general view. This chapter describes the general principles of Linux system administration. In particular, this chapter examines some of the basic tools you need to administer your Linux system. It also helps teach you how to work with file systems and monitor the setup and performance of your Linux system. Graphical Administration Tools Many Linux systems come with simplified graphical tools for administering Linux. If you are a casual user, these tools often let you do everything you need to administer your system without editing configuration files or running shell commands. Let s examine some of the Web-based administration tools that are available to use with most Linux systems. C4H A P T E R . . . . In This Chapter Doing graphical administration Using the root login Understanding administrative commands, config files, and log files Creating user accounts Configuring hardware Managing file systems and disk space Monitoring system performance . . . .
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