No access from outside lan

may be some one can help me

i did a fresh install of nextcloud via snap on ubuntu 18.04 server

everything worked fine during installation and inside my lan but from outside lan i cant any access

portforwarding is set and dyndns is working well

i got some servers running with egroupware, websites, ftp and so on
they are all present from outside

i have set the trusted domains without success

i think there is a problem with ubuntu because ssh is also not working from outside lan

do you know how to open the server?


There wehre Lot of Syntax errors in the Network configuration for the Statik IP.

The biggest mistake was to use tabs instead of spaces in the new netplan config in Ubuntu 18.04

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