RH242 Red Hat Linux Troubleshooting
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In Red Hat Linux Troubleshooting (RH242), system administrators will learn techniques for troubleshooting a Linux system and how to use the troubleshooting tools available on Red Hat Enterprise Linux. This course is a four-day, heavily lab-oriented class designed to help the student learn or improve troubleshooting skills. Students will gain troubleshooting experience by debugging live, virtualized systems. Audience Linux system 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.
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Course Outline. (8 topics)
- Introduction to troubleshooting techniques, including being prepared
- Troubleshooting hardware, including listing, testing, and analyzing devices
- Troubleshooting applications, including diagnosing performance problems and investigating application and OS interactions
- Troubleshooting disks and file systems, including LVM, LUKS, ext3/4, and 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, and firewall
- Making the most of Red Hat support resources
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 and chkconfig, for example) Basic system monitoring (using ps and top, and perhaps meminfo and the /proc file system) File system management (using fdisk and mkfs) Basic troubleshooting (managing log files and perhaps the use of hardware probing tools, such as ethtool and lspci)