Is it posible to define a reverse Proy beside websites on a single IPConfig server. And if yes how? Background I installed NEXTCLOUD succesfully on Docker on the that server and like to use the Peoxy to Secure access via a Letsenccrypt cert and SSL Kind Regards Rainer and thanks for any help
Yes, just create a website in ISPConfig and put the proxy settings in the Apache or Nginx directives field of the website. There are quite a few threads here in the forum on that topic with examples of how such proxy settings must look like.