Recently I built NextCLoud on my OpenMediavault. I will post that story later. I am using reverse proxy manager. while accessing NextCloud, using Local IP or LAN IP, everything is fine but when I try to run NextLoud from my ISP dynamic public IP using Ngnix reverse proxy manager, post login files section failing with Internal server error;
The direct fix is :
0 => ‘your proxy-local-IP,
1 => ‘you-Intenet--public-IP,
to config/config.php in the NextCloud dokcer.