Learn › RHCSA (EX200) › Operate Running Systems
systemctl - a hands-on Linux lab on a real virtual machine.
The RHCSA operating-systems capstone on a real RHEL 10 machine. A misconfigured server, brought to a persistent steady state, graded on live system state. Mission mode.
You have finished the Operating Systems module. This machine just booted, and it booted WRONG: the journal is throwing logs away, a service that should start at boot is off, the default target is the wrong one, the tuning profile is not what the hardware wants, and a logging rule is missing. Your job is to bring it to a correct steady state, the way a real administrator settles a fresh server.
Five objectives, one real RHEL 10 machine. Everything you set must be persistent, because on the exam the graders reboot before they score. The grader here reads the live system state, not your keystrokes.
This is mission mode. No commands are shown. You read the objective, recall the tool, and change the system. Progress checks itself against the running state; a signal is one click away if you get stuck.
One quick rep before you start. Before you enable anything, you check whether a service already starts at boot. Ask systemd whether the time service is enabled.
prompt: student@servera:~$ answer: systemctl is-enabled chronyd output: enabled hint: systemctl reports boot-time state with is-enabled, and current state with is-active. Ask about chronyd: systemctl is-enabled chronyd
enabled means it starts on every boot; that is exactly the persistent state your objectives are about. Now settle the machine.
Boot the machine below and take the console. Five objectives: make the journal persistent, enable the web service at boot, set the default target back to multi-user, apply the recommended tuning profile, and route the local5 log facility to its own file. Read ~/STEADY-STATE.txt for the checklist. Everything must survive a reboot.
Practice Mission Control: Operation Steady State in a real Linux terminal at The Linux Camp. Progress is verified automatically as you type commands on the machine.