[improvement]: HTTP Binding to "::" causing issue for Ipv6 disabled system

[kguptasangoma]

FreePBX Version

FreePBX 17

Improvement Description

If IPv6 is present in the Debian Freepbx system then HTTP server binding to :: , this ideally should always refer to 127.0.0.1 in the advanced settings.

[JoseGoncalves]

Hi @kguptasangoma. I think the best solution would be to bind servers to name localhost.
If you bind to address 127.0.0.1 it will not work in the case a user disables the IPv4 stack on it's machine.
Binding to localhost would work for all situations, i.e., for IPv4-only stack, for IPv6-only stack and for dual-stack.
To use localhost in bindings one need to be sure that files /etc/hosts and /etc/gai.conf are correctly set, i.e., they should resolve localhost name to ::1 address in IPv6 machines and to 127.0.0.1 address in IPv4 (and dual-stack) machines.