Setting up FTPS (FTP over SSL/TLS) in Plesk allows you to secure file transfer operations between your server and client applications using encryption. Here's how you can set up FTPS in Plesk:

1. Access Plesk Panel:

   • Log in to your Plesk Panel as an administrator.

2. Enable FTPS Support:

   • Go to "Tools & Settings" > "Security Policy" > "FTP over SSL/TLS support".
   • Check the box next to "Allow both secure FTPS and non-secure FTP connections" to enable FTPS support.

3. Generate SSL/TLS Certificate (Optional):

   • If you haven't already done so, you may need to generate an SSL/TLS certificate for your domain to secure FTPS connections.
   • Go to "Websites & Domains" > "SSL/TLS Certificates" to generate a certificate for your domain.

4. Configure FTP Settings:

   • Navigate to "Websites & Domains" > "FTP Access".
   • Click on the FTP account you want to configure for FTPS.
   • In the "FTP access" section, ensure that "Secure FTPS" is selected as the connection type.
   • If you generated an SSL/TLS certificate, select the certificate from the dropdown menu. Otherwise, leave it as "Default certificate".

5. Save Changes:

   • Click on "OK" to save the FTP settings.

6. Test FTPS Connection:

   • Use an FTP client application that supports FTPS (e.g., FileZilla, WinSCP) to connect to your server.
   • Enter the FTP hostname, username, and password as configured in Plesk.
   • Select "FTPES - FTP over explicit TLS/SSL" or "FTPS - FTP over implicit TLS/SSL" as the encryption method.
   • Connect to the server and verify that the FTPS connection is established successfully.

7. Verify FTPS Settings:

   • After connecting to the server via FTPS, verify that files can be transferred securely between the client and server.
   • Monitor FTPS logs in Plesk to ensure that FTPS connections are logged and tracked appropriately.

8. Additional Security Considerations:

   • Regularly monitor FTPS logs and audit FTP access to identify and mitigate security risks.
   • Consider implementing firewall rules to restrict FTPS access to trusted IP addresses or networks.
   • Enforce strong FTP password policies and consider using key-based authentication for added security.

By following these steps, you can set up FTPS (FTP over SSL/TLS) in Plesk to secure file transfer operations between your server and client applications.