DDNS no ip with 3cx fqdn

[KhaledQuenawy]

How to use DDNS (no-ip) website with 3CX FQDN if i have dynamic ip ... so when the ip change it automatically find it

 

[AWS2P]

Hi,
if your 3cx is set to use dynamic public IP , why do you want to use DDNS ? what is expected benefit?

For now, each time your public IP change, FQDN will update and will be reachable after DNS propagation so 6 hours for Pro and 5 minutes for Ent licence.

 

[AWS2P]

Is 3CX hosted on site where you have dynamic public ip?

 

[leejor]

As I understand it, the issue with trying to use DDNS, on versions above 14, is not that you don't know the public IP of the server, it's that you are unable to auto provision any remote sets. Even if you manually provision, 3CX cannot be instructed (no place to put in your DDNS information) to allow it accept calls from the sets, it will not recognize something like 100@myddnsservice.com for security reasons.

 

[cobaltit]

How to use DDNS (no-ip) website with 3CX FQDN if i have dynamic ip ... so when the ip change it automatically find it

Seems to be a lack of understanding on how the internet and 3CX works. Not sure what you are trying to accomplish but here are two interpretations:

-If you just want a FQDN to resolve to a dynamic IP, 3CX does that automatically when you use a 3CX FQDN.

- You don't typically point a FQDN to another FQDN, particularly with a DynDNS service. So not sure why you'd want to point NoIP to the 3CX FQDN. But if it's for cosmetic reasons, you do just that. a CNAME to ANY FQDN, 3CX or otherwise just works. The fact that the destination FQDN may change from time to time is exactly why DNS was created in the first place.

Do note that with the second method you will get SSL errors because of a name mismatch between the browser address (noip fqdn) and the 3CX FQDN the certificate was issued to.

 

[JohnS_3CX]

How to use DDNS (no-ip) website with 3CX FQDN if i have dynamic ip ... so when the ip change it automatically find it

Hi Khaled,

This option here takes care of that for you automatically: