u/ChemicalWinter3297

Hello I have a few devices cloud gateway ultra and Unifi express that have a vpn between them.

Due to ISP restrictions I cannot have a public IP, currently I use the isp router to perform the ddns updates and works as expected sometime better than others.

So I need to have the Unifi gateways performing this job instead, all the documentation is very old on using a persistent cron to perform this action. Do any of you guys can point out to an updated howto that works?

The objective is to have a simple solution that is persistent and does not involve installing or performing any major change on the devices.

Thanks