systemctl – inspect and manage systemd services

systemctl command helps you confirm system status and manage systemd services.
Show systemd Services
Simplest command is probably systemctl status:
{% highlight command %} ● srv.ts.com State: running Jobs: 0 queued Failed: 0 units Since: Tue 2019-11-26 22:16:20 GMT; 1 months 18 days ago CGroup: / ├─user.slice │ └─user-1000.slice │ ├─[email protected] │ │ └─init.scope │ │ ├─2814 /lib/systemd/systemd –user │ │ └─2815 (sd-pam) │ ├─session-1365.scope │ │ ├─591 sshd: greys [priv] │ │ ├─601 sshd: greys@pts/0 │ │ ├─602 -bash │ │ ├─607 systemctl status │ │ └─608 pager │ └─session-1290.scope │ ├─2834 tmux │ ├─2835 -bash │ ├─2843 sudo -i │ └─2844 -bash ├─init.scope {% endhighlight %}
See Also
Linux Commands Advanced Unix Commands journalctl command systemd reference Make BIND9 named use only IPv4 (example of using systemctl status there)