Hi, I am looking for a way to use a Let's Encrypt certificate for PureFTP (the manual still has only a self-signed version of the certificate). This is supposed to be a Multi-Server setup where the ISPConfig webinterface runs on a different machine. Since PureFTP runs on a Webserver-Environment the http and the tls challenge fail and the dns-challenge is not an option. Let's encrypt runs on the Webserver (for client websites) so I was thinking of adding a -pre-hook wich stops the webserver and a -post-hook which starts it afterwards. Note. I know how to implement Let's Encrypt Certificates for Mail-Server and the ISPConfig webinterface and the Users-Websites. however only the users-websites and PureFTP are on the same machine and I need to make shure the users websites are up-and running 99.9% of all time so a failing -post-hook is NOT an option... Has anyone got this running in a similar way? (not talking about single server setups) thanks.