Linux(R) Troubleshooting for System Administrators and Power Users (Hewlett-Packard Professional Books (Paperback))

Linux(R) Troubleshooting for System Administrators and Power Users (Hewlett-Packard Professional Books (Paperback))

Summary:

This book not only teaches you how to troubleshoot Linux, it shows you how the system works–so you can attack any problem at its root. Should you reinstall if Linux does not boot? Or can you save time by troubleshooting the problem? Can you enhance performance when Linux hangs or runs slowly? Can you overcome problems with printing or accessing a network? This book provides easy-to-follow examples and an extensive look at the tools, commands, and scripts that make Linux run properly.

* A troubleshooting guide for all Linux users: Focuses on common problems with start-up, printing, login, the network, security, and more
* Restore Linux when boot, startup, or shutdown fails–and reinstall Linux properly when all troubleshooting fails
* Explains how to use some of the most popular Linux performance tools, including top, sar, vmstat, iostat, and free
* Handle storage problems and CPU slamming to ensure high Linux performance
* Solve hardware device problems by deciphering error messages and using the lspci tool
* Use backup/recover commands and tape libraries to create proper backups
* Identify and correct remote and network printing problems using spooler commands

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The cron and at commands are familiar to most Linux users. These commands are used to schedule jobs to run at a later time. This chapter explains how the cron/at subsystem works and where to look when jobs don't run. The cron, at, batch, and anacron facilities are explained in detail. The kcron graphical cron interface is discussed. Numerous examples are provided to demonstrate how to resolve the most common problems. The troubleshooting techniques help build good general troubleshooting skills that can be applied to many other Linux problems.