Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting
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