Question: I would like to install FTPS/SSL on my server(s). I have 2 servers:  

  • Server1 - Port 21 is setup for AD Authentication
  • Server2 - Port 2121 is setup for Native User Authentication
I want to install FTPS/SSL on both servers. Does this mean I need 2 certificates 1 for each server? Is the certificate specific to each server? Can the one certificate work for both servers? If I setup the certificate for server "Server2 - Port 2121" can the same certificate be used on server Server1- Port 21"?

Yes, you can use the same SSL certificate for both Servers, port 21 and 2121.