Wem sagt "CalDAV" etwas?

[Baruse]

Ich habe mehrere Varianten von URLs in Firefox eingegeben

• https://192.168.178.27:5001/caldav/admin bringt "GET requests on collections are only supported for calendars".
  
• https://192.168.178.27:5006/caldav/admin (wie in WebDAV eingestellt) bringt "Not Found - "The requested URL /caldav/admin was not found on this server."
  
• http://192.168.178.27:5001/caldav/admin bringt "400 Bad Request - The plain HTTP request was sent to HTTPS port - nginx"
  
• http://192.168.178.27:5006/caldav/admin "Bad Request - Your browser sent a request that this server could not understand. Reason: You're speaking plain HTTP to an SSL-enabled server port. Instead use the HTTPS scheme to access this URL, please."

Was passiert denn wenn Du den Port wegläßt?
Also nicht https://192.168.178.27:5006/caldav/admin
sondern https://192.168.178.27/caldav/admin