Sysinit, Logging, and Tuning Labs

Lab: Modify Default Boot Target

• Modify the default boot target from graphical to multi-user, and reboot the system to test it. systemctl set-default multi-user
• Run the systemctl and who commands after the reboot for validation.
• Restore the default boot target back to graphical and reboot to verify.

Lab: Record Custom Alerts

• Write the message “This is $LOGNAME adding this marker on $(date)” to /var/log/messages. logger -i "This is $LOGNAME adding this marker on $(date)"
• Ensure that variable and command expansions work. Verify the entry in the file. tail -l /var/log/messages

Lab: Apply Tuning Profile

• identify the current system tuning profile with the tuned-adm command. tuned-adm active

• List all available profiles. tuned-adm list

• List the recommended profile for server1. tuned-adm recommend

• Apply the “balanced” profile and verify with tuned-adm. tuned-adm profile balanced tuned-adm active