internal sharing for external access.

Hello, my client accesses pydio on the internal IP network eg: 192.168.0.254.
But when it will share some document to external people the link is generated over the IP and not in the DDNS that it has ex: domain.ddns.com.br.
When it is external by the domain it works normal.
How to change this?

Hi,
you can change the url right here :