For munin i want to open UDP port 4949 and for monit TCP 2812. So i clicked Firewall > Add Firewall rule. After that, i added the portnumbers UDP 4949 and TCP 2812 and after clicking the "Save" button, nothing happens. I mean the new ports are not added to the existing port range! Instead an error occurs, which says: ERROR 1. There is already a firewall record for this server. Maybe i do something wrong or is ther something wrong else, like a bug?
Every server has one firewall record that contains all open posts. In your case, there is already a firewall record for this server, so instead of adding a new one, edit the existing one and add the ports that you like to open.
