RH142 - Red Hat Linux Troubleshooting

Course Description

Troubleshooting is both an art and a science. An instinct and a technique. In Linux Troubleshooting Techniques and Tools (RH142VT), 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 learn or improve troubleshooting skills. Students will gain troubleshooting experience by debugging live systems.

Skills Gained

Red Hat virtual training is real-time training conducted by instructors in an online environment. These courses feature the same industry-respected content as the corresponding classroom-based courses. Training online provides an ideal combination of flexibility, cost savings, and knowledge transfer in convenient, six-hour increments over a week period.

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
• System administration knowledge under Red Hat Enterprise Linux.

This knowledge includes: installation, service management (using service and chkconfig, for example), basic system monitoring (using ps and top, and perhaps meminfo and the /proc filesystem), filesystem management (using fdisk and mkfs), and basic troubleshooting (including managing log files and perhaps the use of hardware probing tools such as ethtool and lspci).

Syllabus

• Introduction to troubleshooting techniques
• Troubleshooting boot issues: working with advanced GRUB features, rescue and GRUB CDs, advanced ext2/ ext3 filesystem repair, rescuing RAID and LVM volumes
• Troubleshooting hardware: listing, testing, and analyzing devices
• Troubleshooting applications: diagnosing performance problems and investigating application/OS interactions
• Troubleshooting the network: configuration, testing, and diagnosing problems with basic and advanced configurations
• Security: working effectively with (and not against) security tools, including SELinux, SSL, and authentication
• Making the most of Red Hat support resources