Duration: 4 Days
Software Assurance Value:
This course relates to Red Hat Enterprise Linux 6. It is a heavily lab-oriented class designed to help the student learn or improve troubleshooting skills. Students will gain troubleshooting experience by debugging live, virtualized systems.
Experienced Linux system administrators who have responsibilities that include troubleshooting their enterprise Linux environment.
Being Proactive, Part 1Proactively monitor log files, hardware, file systems, and system and network performanceBeing Proactive, Part 2Several approaches to managing configuration changes and developing a recovery planBasic Troubleshooting Techniques and ProceduresAn introduction to troubleshooting methods, best practices, and toolsBooting IssuesUse recovery runlevels and rescue mode; work with advanced GRUB featuresHardware IssuesPreempting hardware failures (looking for the signs); protecting against hardware failures; redundant configurations; tools to help identify hardware failures and intermittent problemsFile System IssuesLocate unauthorized changes; audit software; file system tuning and repair; file recoveryDisk IssuesRescuing LVM volumes; maintenance of LUKS-encrypted volumesNetworking IssuesManual configuration of network cards; connectivity issues; network diagnostic tools; monitor packets; tune kernel parameters; troubleshoot SAN communicationApplication IssuesAn overview of tools and techniques for troubleshooting applications; some common application problems and how to solve themSecurity IssuesWorking effectively with (and not against) security tools, including SELinux, authentication, and firewallRed Hat ResourcesSupport options; Knowledgebase; certified training; initiating support calls; TAM support; developer support; Bugzilla; support workflow; diagnostic and information-gathering tools