Angelo is a RHEL Sysadmin at Red Hat:
- His RHEL Server: RHEL_Server_087
- His username: angelo.powell
- His methods: he never runs commmands as root
- His task: Teach a class of LFCS candidates this LFCS objective: Configure network services to start automatically at boot
Please provide and explain several commands for Angelo to teach his class.
As Angelo doesn't run commands as root, he can teach the class how to configure network services to start automatically at boot using the
systemctl command, which can be executed with regular user privileges. Here are several commands he can teach:
- View the status of a network service:
- systemctl status <service-name>
- This command displays the current status of the specified network service. Angelo can explain that the output will show whether the service is active, inactive, or if any issues have occurred.
- Start a network service:
- systemctl start <service-name>
- This command starts the specified network service immediately. Angelo can demonstrate how to use this command to manually start a service.
- Stop a network service:
- systemctl stop <service-name>
This command stops the specified network service immediately. Angelo can explain how this command can be used to manually stop a running service.
- Enable a network service to start at boot:
- systemctl enable <service-name>
- Angelo can teach the class how to use this command to enable a network service to start automatically at boot time. Enabling a service ensures that it starts whenever the system boots up.
- Disable a network service from starting at boot:
- systemctl disable <service-name>
- Angelo can demonstrate how this command disables a network service from starting automatically at boot. It can be useful for services that are not required or only needed on-demand.
- Check if a network service is enabled:
- systemctl is-enabled <service-name>
- This command provides information about whether a network service is currently enabled to start at boot or not. Angelo can use this command to verify the status of a service.
By teaching these commands, Angelo can guide the class on configuring network services to start automatically at boot without requiring root privileges. It empowers the LFCS candidates to manage network services effectively on their RHEL systems.