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Course Length:
4 Days
Course Description:
Troubleshooting is both an art and a science. An instinct and a technique. 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.
Who Should Attend:
This course is for 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.
Benefits of Attendance:
Upon completion of this course, students will be able to:
  • Understand troubleshooting techniques
  • Understand troubleshooting boot issues: working with advanced GRUB features, rescue and GRUB CDs, advanced ext2/ ext3 filesystem repair, rescuing RAID and LVM volumes
  • Understand troubleshooting hardware: listing, testing, and analyzing devices
  • Understand troubleshooting applications: diagnosing performance problems and investigating application/OS interactions
  • Understand troubleshooting the network: configuration, testing, and diagnosing problems with basic and advanced configurations
  • Work effectively with (and not against) security tools, including SELinux, SSL, and authentication
  • Make the most of Red Hat support resources
Prerequisites:
Students must have successfully completed Red Hat System Administration I and II or RHCSA Rapid Track course, be a RHCSA certification holder or equivalent experience, and possess system administration knowledge under Red Hat Enterprise Linux.
Course Outline:
  • 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