Kein Zugriff auf OwnCloud von ausserhalb

tail -f /var/log/apache2/error.log

<VirtualHost *:80>
   ServerName DynDNS
   Redirect permanent / https://DynDNS
</VirtualHost>

<VirtualHost *:443>

    ServerName DynDNS
    
    SSLEngine on
    SSLCertificateFile    /etc/letsencrypt/live/DynDNS/cert.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/DynDNS/privkey.pem
    SSLCertificateChainFile /etc/letsencrypt/live/DynDNS/chain.pem

    DocumentRoot /var/www/owncloud

    <IfModule mod_headers.c>
      Header always set Strict-Transport-Security "max-age=15768000; includeSubDomains; preload"
    </IfModule>
        
    <Directory />
        Options Indexes FollowSymLinks MultiViews
        AllowOverride All
        Order allow,deny
        Allow from all
        Satisfy Any
    </Directory>
</VirtualHost>

# Version: 8.2.0
<IfModule mod_headers.c>
  <IfModule mod_fcgid.c>
    <IfModule mod_setenvif.c>
       SetEnvIfNoCase ^Authorization$ "(.+)" XAUTHORIZATION=$1
       RequestHeader set XAuthorization %{XAUTHORIZATION}e env=XAUTHORIZATION
    </IfModule>
  </IfModule>

  <IfModule mod_env.c>
    # Add security and privacy related headers
    Header set X-Content-Type-Options "nosniff"
    Header set X-XSS-Protection "1; mode=block"
    Header set X-Robots-Tag "none"
    Header set X-Frame-Options "SAMEORIGIN"
    SetEnv modHeadersAvailable true
  </IfModule>

  # Add cache control for CSS and JS files
  <FilesMatch "\.(css|js)$">
    Header set Cache-Control "max-age=7200, public"
  </FilesMatch>
</IfModule>
<IfModule mod_php5.c>
  php_value upload_max_filesize 513M
  php_value post_max_size 513M
  php_value memory_limit 512M
  php_value mbstring.func_overload 0
  php_value always_populate_raw_post_data -1
  php_value default_charset 'UTF-8'
  php_value output_buffering 0
  <IfModule mod_env.c>
    SetEnv htaccessWorking true
  </IfModule>
</IfModule>
<IfModule mod_rewrite.c>
  RewriteEngine on
  RewriteRule .* - [env=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
  RewriteRule ^\.well-known/host-meta /public.php?service=host-meta [QSA,L]
  RewriteRule ^\.well-known/host-meta\.json /public.php?service=host-meta-json [QSA,L]
  RewriteRule ^\.well-known/carddav /remote.php/carddav/ [R=301,L]
  RewriteRule ^\.well-known/caldav /remote.php/caldav/ [R=301,L]
  RewriteRule ^apps/calendar/caldav\.php remote.php/caldav/ [QSA,L]
  RewriteRule ^apps/contacts/carddav\.php remote.php/carddav/ [QSA,L]
  RewriteRule ^remote/(.*) remote.php [QSA,L]
  RewriteRule ^(build|tests|config|lib|3rdparty|templates)/.* - [R=404,L]
  RewriteRule ^(\.|autotest|occ|issue|indie|db_|console).* - [R=404,L]
</IfModule>
<IfModule mod_mime.c>
  AddType image/svg+xml svg svgz
  AddEncoding gzip svgz
</IfModule>
<IfModule mod_dir.c>
  DirectoryIndex index.php index.html
</IfModule>
AddDefaultCharset utf-8
Options -Indexes
<IfModule pagespeed_module>
  ModPagespeed Off
</IfModule>