Running Server 2008 R2. I'm trying to get a Zabbix agent working. The agent works if I turn off the firewall on the server. For obvious reasons, I don't want to leave the firewall off.
As per the Zabbix instructions, I opened inbound TCP ports 10050-10051 on the server (also tried UDP) via WF.msc. As soon as the firewall is turned on, everything stops working. I enabled the firewall log which of course is (and remains) empty. Nothing in event viewer, either.
Any ideas why WF.msc directives might not be honored?
Best Answer
First, I suggest you verify that the application behavior matches the documentation: type
netstat -anbin an elevated command-line and you'll get a list of open ports with the associated executable (if possible).Once you have that, make sure your rules matches the actual listening pattern of your application.
An alternative would be to open the ports not based on port number but based on the executable itself. That might make it easier to manage.