Overview

The Red Hat Enterprise Linux Diagnostics and Troubleshooting course (RH342) provides system administrators with the tools and techniques they need to successfully diagnose, and fix, a variety of potential issues. Students will work through hands-on problems in various subsystems to diagnose and fix common issues.

Students will learn how to apply the scientific method to a structured form of troubleshooting. This approach is then used troubleshooting various types of problems, including boot issues, hardware issues, storage issues, RPM issues, network issues, third-party application issues, security issues, and kernel issues. At the end of the course students can complete various comprehensive review labs to test their skills.

Course summary

• Use the scientific method to approach troubleshooting
• Troubleshoot boot issues
• Troubleshoot security issues
• Troubleshoot storage issues
• Troubleshoot network issues

Duration

 4 days

Outcomes

1.      Impact on the organization

This course is intended to develop the skills needed to prevent costly downtime due to system failure and quickly recover failed systems using analysis, diagnosis, and troubleshooting.

2.      Impact of this training

As a result of attending this course, students should be able to leverage the software development life-cycle process to plan, create, test, and provision host systems within an organization.

Students should be able to demonstrate the following skills:

• Installation of Red Hat Satellite 6
• Software life-cycle management of software used to provision and maintain configured hosts within a controlled production environment

Prerequisites

Red Hat recommends these prerequisites:

• Have earned a Red Hat Certified System Administrator (RHCSA) or have similar experience
• It is recommend that students have earned a Red Hat Certified Engineer (RHCE) or have similar experience

Audience

The Red Hat Enterprise Linux Diagnostics and Troubleshooting course is aimed at senior system administrators who wish to learn more about troubleshooting.

Course Outline              

1. Configuring the shell environment

• Customize Bash startup and use environment variables, Bash aliases, and Bash functions.

2. Introduction to troubleshooting

• Describe a generalized strategy for troubleshooting.

3. Take proactive steps to prevent small issues

• Prevent small issues from becoming large problems by employing proactive system administration techniques.

4. Troubleshoot boot issues

• Identify and resolve issues that can affect a system's ability to boot.

5. Identify hardware issues

• Identify hardware problems that can affect a system’s ability to operate.

6. Troubleshoot storage issues

• Identify and fix issues related to storage.

7. Troubleshoot RPM issues

• Identify and fix problems in, and using, the package management subsystem.

8. Troubleshoot network issues

• Identify and resolve network connectivity issues.

9. Troubleshoot application issues

• Debug application issues.

10. Deal with security issues

• Identify and fix issues related to security subsystems.

11. Troubleshoot kernel issues

• Identify kernel issues and assist Red Hat Support in resolving kernel issues.

12. Red Hat Enterprise Linux Diagnostics and Troubleshooting comprehensive review

• Practice and demonstrate knowledge and skills learned in Red Hat Enterprise Linux Diagnostics and Troubleshooting.