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RH342
Red Hat Enterprise Linux Diagnostics and Troubleshooting

Diagnose problems, gather information, and fix common issues with Red Hat Enterprise Linux.

RH342 Red Hat Enterprise Linux Diagnostics and Troubleshooting

Diagnose problems, gather information, and fix common issues with Red Hat Enterprise Linux

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.

Course overview

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.

Outline for this course

- Introduction to troubleshooting
- Take proactive steps to prevent small issues
- Troubleshoot boot issues
- Identify hardware issues
- Troubleshoot storage issues
- Troubleshoot RPM issues
- Troubleshoot network issues
- Troubleshoot application issues
- Deal with security issues
- Troubleshoot kernel issues
- Red Hat Enterprise Linux Diagnostics and Troubleshooting comprehensive review

Audience & Prerequisites

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

Prerequisites for this course

- 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

Course overview

This course goes deeper into enterprise Linux administration including file systems and partitioning, logical volumes, SELinux, firewalling, and troubleshooting. Attending both Red Hat System Administration I and Red Hat System Administration II can help you in your preparation for the Red Hat Certified System Administrator exam (EX200).

Outline for this course

- Automate installation with Kickstart
- Use regular expressions with grep
- Create and Edit text files with vim
- Schedule future Linux tasks
- Manage priority of Linux processes
- Control access to files with access control lists (ACL)
- Manage SELinux security
- Connect to network-defined users and groups
- Add disks, partitions, and file systems to a Linux system
- Manage logical volume management (LVM) storage
- Access (secure) NFS shares.
- Access networked storage with SMB
- Control and troubleshoot the Red Hat Enterprise Linux boot process
- Limit network communication with firewall
- Comprehensive review

Audience & Prerequisites

This course is singularly designed for students who have completed Red Hat System Administration I (RH124). The organization of topics is such that it is not appropriate for student to use RH134 as a curriculum entry point. Students who have not taken a previous Red Hat course are encouraged to take either System Administration I if they are new to Linux, or the RHCSA Fast Track course (RH200) if they are experienced with enterprise Linux administration.

Prerequisites for this course: Red Hat System Administration I (RH124)

Course overview

The course is focused on deploying and managing network servers running caching Domain Name Service (DNS), MariaDB, Apache HTTPD, Postfix SMTP nullclients, network file sharing with Network File System (NFS) and Server Message Block (SMB), iSCSI initiators and targets, advanced networking and firewalld configurations, and the use of Bash shell scripting to help automate, configure, and troubleshoot the system. Through lectures and hands-on labs, students who have already earned the RHCSA certification will be exposed to all competencies covered by the Red Hat Certified Engineer (RHCE) exam (EX300).

Outline for this course

- Control services and daemons
- Manage IPv6 networking
- Configure link aggregation and bridging
- Control network port security
- Manage DNS for servers
- Configure email delivery
- Provide block-based storage
- Provide file-based storage
- Configure MariaDB databases
- Provide Apache HTTPD web service
- Write Bash scripts
- Bash conditionals and control structures
- Configure the shell environment
- Comprehensive review

Audience & Prerequisites

Red Hat System Administration III is intended for experienced Linux administrators wishing to learn enterprise-level automation techniques through scripting, how to deploy and secure network services, and how to manage other key security features of Red Hat Enterprise Linux. Students in this course should have earned their RHCSA or have equivalent skills.

Prerequisites for this course:

RHCSA certification or equivalent experience
For candidates who have not earned their RHCSA certification, confirmation of the correct skills and knowledge can be obtained by passing the online skills assessment.

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