Secrets in This Chapter
Understanding the init Process
Understanding the Red Hat Linux initscripts
Scheduling Recurring Jobs
Looking at the /etc/crontab File
Backing Up on Tapes
Performing Automated Backups
Loading and Unloading Modules
Understanding the /etc/modules.conf File
Understanding Load Averages
Using sysctl to View and Set Kernel Parameters
Chapter 12 introduced the basics of systems and network administration on the Red Hat Linux system. In several other chapters, you learned many other systems-administration tasks, such as configuring X, setting up printers, connecting to the Internet, and managing Internet services. This chapter introduces you to a number of other important system-administration tasks that I do not cover elsewhere in this book.
This chapter starts with a description of how Red Hat Linux boots, so you know how to start and stop services automatically at boot time. Then, you learn about automating system tasks with the at command or the crontab facility of Linux. Next, this chapter focuses on another important systems-administration task-backing up and restoring files from backup storage media. Finally, the chapter discusses monitoring system performance.