GSAtrain

​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
Booting Issues
Use recovery runlevels and rescue mode; work with advanced GRUB features
Hardware Issues
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
Disk Issues
Rescuing LVM volumes; maintenance of LUKS-encrypted volumes
Networking Issues
Manual configuration of network cards; connectivity issues; network diagnostic tools; monitor packets; tune kernel parameters; troubleshoot SAN communication
Application Issues
An overview of tools and techniques for troubleshooting applications; some common application problems and how to solve them
Security Issues
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