Front proxy config

nginx

server {

  # [...]

  include proxy_params;

	location /nextcloud {
	proxy_pass http://[IP]/nextcloud;
	add_header X-Frame-Options "SAMEORIGIN";
	client_max_body_size 16G;
	proxy_connect_timeout       1200;
	proxy_send_timeout          1200;
	proxy_read_timeout          1200;
	# send_timeout                600;
	proxy_buffering off;
	proxy_request_buffering off;
  }
    
  # [...]

}

proxy_params

proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
#proxy_set_header X-Forwarded-Host $remote_addr;