Problem

How to change SecureTransport's reply to the AUTH TLS command from 234 SSLv23/TLSv1 to 334 SSLv23/TLSv1 for FTPS connections?

Resolution

1. Go to the Operations -> Server Configuration page of the Admin UI.

2. Find the parameter Ftp.Ssl.StrictRfc2228.

3. Change the setting to true.

4. Restart the FTP service to apply the change.