@dpettigr said in Open ports:
so they are using a cloud based application that needs to communicate with a piece of software installed on the machine.
That loopback dns stuff pointing to 127.0.0.1.. Nothing from anywhere is going to connect to that, that is loopback, goes no where other than the machine itself..
Are you seeing them blocked in the pfsense firewall?
Where are they blocked in the log? If something is trying to get to your public IP, you would see the traffic doing a packet capture. If you don't see it, then its never getting to pfsense.
If pfsense sees it, and the forward is not working.. You either have it setup wrong, post up your port forwarding rules. The nat and the firewall rule that would of been created. Maybe there is something above the rule on your wan that blocking it. Like a specific pfblocker rule or something? Or something on the client, which is very common - firewall on the client, or client not pointing to pfsense as its gateway. Is it tcp or udp?
You can sniff on pfsense lan side interface while trying to connect, do you see pfsense send on the traffic to the IP you port forwarded the traffic.