Log into the CentOS 7 client via ssh/terminal. Install check-mk-agent
# yum install check-mk-agent
Once installed, edit xinetd config:
# nano /etc/xinetd.d/check-mk-agent
Uncomment only_from and add IP of your OMD/Check_MK server
Save and Close
Start and enable startup for xinetd service:
# systemctl start xinetd.service
# systemctl enable xinetd.service
Add port 6556 to firewall:
# firewall-cmd --add-port=6556/tcp --permanent
# firewall-cmd --reload
# firewall-cmd --list-all
Now you can add the client to your Check_MK panel via New Host and it will automatically add the checks.
