Hi all, so I have a problem where my organization has a working FreePBX hosted on AWS. We are using a non-distro setup with (Debian OS) so we do not count on the commercial modules including the (Firewall option). My company has employed multiple remote users and it becomes a nightmare when I have to hot-swap (whitelist) their Dynamic IP Address onto the AWS basic firewall only to allow specific IP Addresses to be able to establish a SIP session, as it constantly changes all the time I thought about scripting this process but that more easily said than done.
Now, I’ve seen that a built-in FreePBX Responsive Firewall would have done the trick, however, we do not have such an option. Note mentioning that our hosted FreePBX has a static IP address.
I read about creating an OpenVPN instance, however, for us would not be an option as it would include extra unnecessary expenses to create a new VPS, and AWS is not cheap at all, unfortunately . Is there any approach you guys have done sucessfully so your remote clients with Dynamic IP Addresses can connect to your FreePBX without using a Responsive Firewall, or any other alternatives? I’ve been looking for DDNS or some sort of solution but none of them seems feasible.
I’m running out of options