System IP Address Change

[Knotstone]

What is the proper procedure for changing the IP address of a 3cx self-hosted instance?
Tried just changing it through the OS and the entire system puked, had to restore from backup - suspecting I missed something
DNS servers were an easy change in the Interfaces file, but it didn't like the IP being changed

 

[SteveITS]

I’d expect it to work but if you’re using a 3CX FQDN note the TTL is 6h for Pro, 5m for Enterprise.

 

[Knotstone]

I completely forgot about the FQDN TTL - that is likely what was causing it to appear to puke
To clarify though - it is as simple as changing the interfaces file to reflect the new IP, reboot - and in this case, wait 6 hours

 

[SteveITS]

If 3CX is set to a static IP in its network settings you may need to change that to a dynamic IP temporarily so it will update the FQDN. This thread has more info.

Thread 'Public ip change'

Jul 27, 2023

Hello! I need your help. I want to change public IP on 3cx server. As I know I should change it in Settings - Network - External IP Configuration. Is it all? And as I know it will take 24 hours to change it on system, yes? I will be grateful if you help.

• orkhan_h
• Replies: 9
• Forum: SMB