Red Hat COE in Enterprise Linux Diagnostics and Troubleshooting (RH342)

  • Understand and employ general methods for troubleshooting
    • Collect system information to aid in troubleshooting
    • Consult documentation resources to aid in troubleshooting
    • Monitor systems for vital characteristics
    • Configure systems to send log messages to a centralized host
  • Diagnose and troubleshoot system start up issues
    • Identify and resolve service failures affecting boot
    • Regain root control of a system
    • Troubleshoot boot issues
    • Identify hardware and hardware problems
    • Manage kernel modules and their parameters
  • Diagnose and troubleshoot file system issues
    • Recover corrupted file systems
    • Recover mis-configured or broken LVM configurations
    • Recover data from encrypted file systems
    • Identify and fix iSCSI issues
  • Resolve package management issues
    • Resolve package management dependency issues
    • Recover a corrupted RPM database
    • Identify and restore changed files
  • Troubleshoot and fix network connectivity issues
    • Use standard tools to verify network connectivity
    • Identify and fix network connectivity issues
    • Inspect network traffic to aid troubleshooting
  • Diagnose application issues
    • Identify library dependencies for third-party software
    • Identify if an application suffers from memory leaks
    • Use standard tools to debug an application
    • Identify and fix issues related to SELinux
  • Identify and fix authentication issues
    • Identify and fix pluggable authentication module (PAM) issues
    • Identify and fix LDAP and Kerberos identity management issues
  • Gather information to aid third party investigation of issues
    • Create kernel crashdumps
    • Compile and execute SystemTap modules

Prerequisites for this course

  • Red Hat Certified System Administrator (RHCSA) certification or equivalent experience is required
  • For candidates who have not earned their RHCSA, confirmation of the correct skills and knowledge can be obtained by passing the online skills assessment.

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