SystemD operations
Override parameters (i.e. docker engine)
Run systemctl edit docker.service
and add the content
[Service]
ExecStart=
ExecStart=/usr/bin/dockerd -H fd:// --dns 8.8.8.8
To replace a line it has first to be cleared, then it can be set again.
Restart AuditD
This service is a little speciality.
systemctl restart auditd
does not work, it's needed to use service auditd restart