check_mk agent install on CentOS 7 by systemd

Here is the steps I install check_mk agent on CentOS 7 by systemd only without xinit.

first scp the rpm package to CentOS server, then install it:
rpm -ivh check-mk-agent-1.2.8p18-1.noarch.rpm

Open the port 6556:

firewall-cmd --permanent --add-port=6556/tcp
firewall-cmd --reload

Double check the status:

firewall-cmd --list-ports
firewall-cmd --list-services

Restart to make sure the check_mk_agent start on boot.

Hope this helps.