Red Hat Linux Troubleshooting

Course Description

Troubleshooting is both an art and a science. An instinct and a technique. In Red Hat Linux Troubleshooting (RH242), system administrators will learn techniques for troubleshooting a Linux system and how to use the troubleshooting tools available on Red Hat Enterprise Linux. This course is a four-day, heavily lab-oriented class designed to help the student learn or improve troubleshooting skills. Students will gain troubleshooting experience by debugging live, virtualized systems.

Skills Gained

A Red Hat Enterprise Linux system administrator who can identify, diagnose, and resolve problems on a Red Hat Enterprise Linux system, and who can take preventative action to avoid problems.

Who Can Benefit

Linux system administrators who understand how to install and configure a Red Hat Enterprise Linux system and who wish to deepen their understanding of troubleshooting on Linux.

Prerequisites

* Red Hat System Administration I and II or RHCSA Rapid Track Course * RHCSA certification holder or equivalent experience * Have system administration knowledge under Red Hat Enterprise Linux, including: o Installation o Service management (using service and chkconfig, for example) o Basic system monitoring (using ps and top, and perhaps meminfo and the /proc file system) o File system management (using fdisk and mkfs) o Basic troubleshooting (including managing log files and perhaps the use of hardware probing tools, such as ethtool and lspci)

Syllabus

* Introduction to troubleshooting techniques, including being prepared * Troubleshooting hardware, including listing, testing, and analyzing devices * Troubleshooting applications, including diagnosing performance problems and investigating application and OS interactions * Troubleshooting disks and file systems, including LVM, LUKS, ext3/4, and unauthorized changes * Troubleshooting the network, including configuring, testing, and diagnosing problems with basic and advanced configurations * Security, including working effectively with (and not against) security tools like SELinux, authentication, and firewall * Making the most of Red Hat support resources