Systemd: RHEL 7 / Centos 7

In RHEL 7 / Centos 7 new release, there are now systemd commands you can start using to start, restart and stop various services. They still have the ‘service’ command included for backwards compatibility.

Here are some examples:

Stop service:

systemctl stop httpd

1	systemctl stop httpd

Start service:

systemctl start httpd

1	systemctl start httpd

Restart service (stops/starts):

systemctl restart httpd

1	systemctl restart httpd

Reload service (reloads config file):

systemctl reload httpd

1	systemctl reload httpd

List status of service:

systemctl status httpd

1	systemctl status httpd

What about chkconfig? That changed too? Yes, now you want to use systemctl for the chkconfig commands also..
chkconfig service on:

systemctl enable httpd

1	systemctl enable httpd

chkconfig service off:

systemctl disable httpd

1	systemctl disable httpd

chkconfig service (is it set up to start?)

systemctl is-enabled httpd

1	systemctl is-enabled httpd

chkconfig –list (shows what is and isn’t enabled)

systemctl list-unit-files --type=service

1	systemctl list-unit-files --type=service