checkmk Agent installation on linux

Download the Agent

Setup --> Agents --> "Windows, Linux, Solaris, AIX" --> Related --> "Linux, Solaris, AIX" --> right click on the file --> Copy link address

Install the Agent

For Debian based systems

wget http://syslog.simmy.ch/monitoring2/check_mk/agents/check-mk-agent_2.2.0p17-1_all.deb
apt install ./check-mk-agent_2.2.0p17-1_all.deb

if ufw is active, then you have to enable the service port:

ufw allow 6556

For Red Hat/Fedora based systems

wget http://syslog.simmy.ch/monitoring2/check_mk/agents/check-mk-agent-2.2.0p17-1.noarch.rpm
sudo yum install -y -q check-mk-agent-2.2.0p17-1.noarch.rpm -y

Open the firewall for checkmk-agent on port 6556

Register agent to the monitoring server

cmk-agent-ctl register --hostname $(hostname -f) --server syslog.simmy.ch --site monitoring2 --user cmkadmin

Useful commands

ss -tulpn | grep 6556
echo | nc <localhost> 6556
cmk-agent-ctl status