Using System Target on Redhat 7
- To check all active targets on the system.
[root@localhost]# systemctl list-units --type=target
- To check all targets installed on the disk.
[root@localhost]# systemctl list-units --type=target --all
- How to display the current default target.
[root@localhost]# systemctl get-default
- Change the default target to the multi-user target
root@localhost]# systemctl set-default multi-user.target
- View all available systemd configuration units.
[root@localhost]# systemctl -t help
- Find the status of the httpd service.
[root@localhost]# systemctl status httpd.service
- List all active service unit configuration files.
[root@localhost]# systemctl --type=service
or
[root@localhost]# systemctl list-units --type=service
- Determine if the sshd service is active.
[root@localhost]# systemctl is-active sshd
- Determine if the httpd service is enabled, and, if it is not, enable it.
[root@localhost]# systemctl is-enabled httpd
- View enabled and disabled settings for all units of the type "service".
[root@localhost]# systemctl list-unit-files --type=service --all
- List all service unit configuration files, whether they are active or not.
[root@localhost]# systemctl list-units --all
OR
[root@localhost]# systemctl list-units --type=service --all