Hello community
We are trying to use FarmGuardian to check for an open port on our backend 
servers.
We are using this command:
check_tcp -H HOST -p 5085

Unfortunately, this check is flooding the log file of the application that is 
listening on that port with the following error:
16:32:04 Cannot execute the operation 'WSARecv1()' on session 72228: 
WSAECONNABORTED: An established connection was aborted by the software in your 
host machine.

I already did some tests to do a so called "tcp_half_open" check, which is 
available on the F5 Networks load balancer, but I cannot get it work with the 
ZEN load balancer.

Does somebody have a hint, how to write a plugin for FarmGuardian to do a 
"tcp_half_open" check?

Thank you very much in advance.

Best regards,
Matthias


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