I have a Nextcloud 16 ( dockerised install) running on top of my Synology. I have configured this to run http traffic in port 8080
This is on a 10.x.x.x based network. Everything seems to function properly.
I also have a hardware Sophos UTM firewall. I have applied a WAF policy mapping cloud.domain.com( with a signed cert ) on 443 through to the docker nextcloud instance.
Logging in and uploading files etc works as expected.
When i try and connect the nextcloud app it fails to connect. I suspect this is because the server address ( taken from the settings section) reports its internal address.
I have the above settings in the docker compose file but no dice.
Im clearly missing something but cant work out what