What firewall ports have to be opened for windows client monitoring

This is using check_MK 1.40p37. I have few MS Windows Servers located at the different segment isolated by a firewall. What port(s) have to be opened in order for the check _MK server to monitor these few windows servers?

TCP 6556 only?

Thanks in advance.

This is what we have done.

Do you have multiple sites? or just a setup like, LAN/ DMZ and others?

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the clients are located at the segment different from the check_MK servers.

So, just have to allow tcp 6556 only? tcp 80 and 443 not need?

yes only 6556 :slight_smile: @Soohow.cheng

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If you use default host check command (ICMP / smartping ) don’t forget to open ICMP protocol as well.

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or another way is to pickup the data via ssh

point 8.3

https://checkmk.com/cms_agent_windows.html

Other network-device my block the port.
Ralf