Restrict all inbound traffic to 3cx only

[WireDan7]

Hello everyone,

I'm new to the 3CX world and I'm wondering if it's possible when installing 3cx on debian, is it possible to apply a firewall rule that will only open ports 9000 - 9500 to 3CX.

Slightly wary of just opening ports.

Thanks for any and all replies.
Dan

 

[leejor]

Would you not simply forward the ports, on your router, to the (local IP of) server/PC running 3CX? They won't go to any other device on your network. If it passes through any sort of additional firewall, then those ports would have to be allowed.

https://www.3cx.com/docs/manual/firewall-router-configuration/