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.
- List all available profiles.
- List the recommended profile for server1.
- Apply the “balanced” profile and verify with tuned-adm.
tuned-adm profile balanced