Might have missed it, but I did not see how to create and use a real company certificate on the server that will be hosting the FTP server. I wan't to make sure there is real certificate in use there.
#1) Make sure you're running Serv-U MFT edition.
#2) Read Configuring Serv-U With An SSL Certificate
Note that Serv-U also supports "wildcard" certs - I've used a couple of these in my deployments too.
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