Solved 3CX Custom FQDN and Failover

[PhoneOnline]

Hi,

We have the following setup:

- 2 PBX with unique local IP (private ip address) with identical same setup
> Per example: 10.0.0.20 and 10.0.0.21
- Scheduled backup to FTP
- Backup restore schedule is working as expected
- Configured failover with public WAN IP on PBX B
- 1 DNS entry: XXXXPBX.XXX.com pointing to the WAN Ip of that PBX

I performed manual failover by shutting down PBX A: 10.0.0.20, services come online on PBX B after a few minutes (and confirmed in Services overview)

But (public) DNS of this domain is managed by larger company, how can we make sure the FQDN points to the correct public IP now? We want this to be automated, not a manual change on the provider's DNS.

 

[Saqqara]

I doubt this is possible, someone has to change the DNS setting. You may be able to script it , all depends if your dns provider allows this. This is probably a question for the provider.

Using a 3CX fqdn. this would not be an issue

 

[cobaltit]

As you went the custom FQDN route, this is your problem, not 3CXs. Many DNS providers offer APIs to make DNS changes. You'd have to script something similar to the failover script examples to have that done.

3CX Failover

 

[PhoneOnline]

Thanks, will look into using the API from the provider.

Mechanism works like a charm!