I've got a VPS running CentOS 7.9.2009 and Pure-FTPd 1.0.47. I've got all of the basic stuff up and running (web, FTP, email, etc), but I'm new to SSL so I'm having a lot of trouble getting it to work with my various services. I purchased a PositiveSSL cert, thinking it would work with all of the services, but apparently that's not the case. I have it working for web (which is the one thing I *don't* need it for), but can't get it working properly for the ISPConfig control panel, FTP or Email. I setup the cert in ISPConfig3 for my domain in the Sites panel, but nothing changed except the web aspect. For ISPConfig, FTP, and Email, I get an invalid certificate warning telling me to store an exception if I want to connect to the server. I thought purchasing a cert would make that go away, but apparently not. Obviously I can still connect, but why am I getting this warning for everything except web? Is there something else I need to do to get this cert to function properly for all of the other services?