Loading Classes
Red Hat Linux Troubleshooting (RH242)
New Age Technologies has been delivering Authorized Training since 1996. We offer Red Hat’s full suite of authorized courses including courses pertaining to Red Hat Linux Troubleshooting, JBoss Application, Docker Containers, OpenStack Administration, Red Hat Satellite, and more. If you have any questions or can’t seem to find the Red Hat class that you are interested in, contact one of our Red Hat Training Specialists. Invest in your future today with Red Hat training from New Age Technologies.
✉ Red Hat Training Specialists | ☏ 502.909.0819
Current Promotion
COURSE INFORMATION
Red Hat Linux Troubleshooting (RH242) Overview:
Red Hat Linux Troubleshooting (RH242) is a 4-day, hands-on, lab intensive course where you will learn techniques for troubleshooting a Linux system and how to use the troubleshooting tools available on Red Hat Enterprise Linux by debugging live, virtualized systems.
Who Should Attend:
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
Red Hat Linux Troubleshooting (RH242) Prerequisites:
Before attending this course, you must have the following:
- 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:
- Installation
- Service management:
- Using service
- Using chkconfig
- Basic system monitoring:
- Using ps
- Using top
- Using meminfo
- Using the /proc file system
- File system management:
- Using fdisk
- Using mkfs
- Basic troubleshooting:
- Managing log files
- Using hardware probing tools, such as ethtool and lspci
Red Hat Linux Troubleshooting (RH242) Objectives:
After successfully completing this course, you will learn:
- Introduction to troubleshooting techniques
- Troubleshooting hardware, including:
- Listing
- Testing
- Analyzing devices
- Troubleshooting applications, including:
- Diagnosing performance problems
- Investigating application and OS interactions
- Troubleshooting disks and file systems, including:
- LVM
- LUKS
- ext3/4
- 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
- Firewall
- Making the most of Red Hat support resources
Red Hat Linux Troubleshooting (RH242) Outline:
Module 1 – Being Proactive, Part 1
Proactively monitor log files, hardware, file systems, and system and network performance
Module 2 – Being Proactive, Part 2
Several approaches to managing configuration changes and developing a recovery plan
Module 3 – Basic Troubleshooting Techniques and Procedures
An introduction to troubleshooting methods, best practices, and tools
Module 4 – Booting Issues
Use recovery runlevels and rescue mode; work with advanced GRUB features
Module 5 – Hardware Issues
Preempting hardware failures (looking for the signs); protecting against hardware failures; redundant configurations; tools to help identify hardware failures and intermittent problems
Module 6 – File System Issues
Locate unauthorized changes; audit software; file system tuning and repair; file recovery
Module 7 – Disk Issues
Rescuing LVM volumes; maintenance of LUKS-encrypted volumes
Module 8 – Networking Issues
Manual configuration of network cards; connectivity issues; network diagnostic tools; monitor packets; tune kernel parameters; troubleshoot SAN communication
Module 9 – Application Issues
An overview of tools and techniques for troubleshooting applications; some common application problems and how to solve them
Module 10 – Security Issues
Working effectively with (and not against) security tools, including SELinux, authentication, and firewall
Module 11 – Red Hat Resources
Support options; Knowledgebase; certified training; initiating support calls; TAM support; developer support; Bugzilla; support workflow; diagnostic and information-gathering tools.
