This essential guide covers all aspects of Linux system administration, from user maintenance, backups, filesystem housekeeping, storage management, and network setup to hardware and software troubleshooting and some application management. It's both a practical daily reference manual for sysadmins and IT pros and a handy study guide for those taking Linux certification exams. You'll turn to it frequently, not only because of the sheer volume of valuable information it provides but because of the real-world examples within and the clear, useful way the information is presented. With this book at your side, you'll be able to:

Install Linux and perform initial setup duties, such as connecting to a network

Navigate the Linux filesystem via the command line

Install software from repositories and source and satisfy dependencies

Set permissions on files and directories

Create, modify, and remove user accounts

Set up networking

Format and mount filesystems

Perform basic troubleshooting on hardware and software

Create and manage logical volumes

Work with SELinux

Manage a firewall and iptables

Shut down, reboot, and recover a system

Perform backups and restores