Encountering Popup of “Unknown certificate” while connecting to the server through FTP client in Plesk Hosting

To enhance the security, we’ve configured FTP over SSL and removed plain text authentication in our Windows Server 2016 Shared hosting. So, if you are connecting first time through FTP, it will ask you to allow certificate like below.

certificate popup

Check the option “Always trust certificate in future sessions” and click on OK button. This will encrypt all your FTP connections.


  • 0 Users Found This Useful

Was this answer helpful?

Related Articles

What is FTP?

It is a short term of File Transfer Protocol. It is a protocol used to exchange files over...

Can I install an .exe that can serve as a Chat server on Shared server?

No! We do not allow installing any exe files on our Shared servers. If installing exe file is...

Do you support ODBC MySQL drivers on Windows Shared Hosting Plans?

Yes, all our Windows shared hosting plans support ODBC MySQL drivers. Get Windows Shared Hosting

What is an FQDN (Fully Qualified Domain Name)?

The FQDN (Fully Qualified Domain Name) is an entire domain name address, including hostname,...

Do I get an Dedicated IP in Shared Hosting?

In Shared Hosting, by default, your website is hosted on a shared IP address. If you need a...