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Red Hat Linux Troubleshooting Virtual (RH242VT) outline
Techniques for troubleshooting a Linux system
Being proactive, part 1
Proactively monitor log files, hardware, file systems, and system and network performance
Being proactive, part 2
Several approaches to managing configuration changes and developing a recovery plan
Basic troubleshooting techniques and procedures
An introduction to troubleshooting methods, best practices, and tools
Use recovery runlevels and rescue mode; work with advanced GRUB features
Preempting hardware failures (looking for the signs); protecting against hardware failures; redundant configurations; tools to help identify hardware failures and intermittent problems
File system issues
Locate unauthorized changes; audit software; file system tuning and repair; file recovery
Rescuing LVM volumes; maintenance of LUKS-encrypted volumes
Manual configuration of network cards; connectivity issues; network diagnostic tools; monitor packets; tune kernel parameters; troubleshoot SAN communication.
An overview of tools and techniques for troubleshooting applications; some common application problems and how to solve them
Working effectively with (and not against) security tools, including SELinux, authentication, and firewall
Red Hat resources
Support options; Knowledgebase; certified training; initiating support calls; TAM support; developer support; Bugzilla; support workflow; diagnostic and information-gathering tools.
Note: Course outline is subject to change with technology advances and as the nature of the underlying job evolves. For questions or confirmation on a specific objective or topic, please contact a training specialist.