How to Secure FTP Sessions via SSL (FTPS)

How to Set Up FTPS on a Domain in Plesk
FTPS is an extension of File Transfer Protocol. It utilizes SSL encryption to increase the security of the file transfer.
If you want to transfer files using FTPS, three conditions must be met.
  1. The domain must be on a Plesk 11.0 or greater server.
  2. The domain must have a dedicated IP address.
    (Please see How to Purchase an Additional IP Address for more details)
  3. The domain must have an SSL certificate applied to it.
To Set Up FTPS
  • Log into the Parallels Plesk Panel.
  • Click Subscriptions > choose the domain that needs FTPS.
  • Click the Websites & Domains tab > Web Hosting Access.
  • Click on Tools & Settings > (Tools & Resources) IP Addresses.
  • Note the dedicated IP address for the site.
  • Check the Allow FTP over SSL  box.
  • Ensure the site's SSL certificate is in use and press OK.

    Allow FTP over SSL
  • By allowing FTP over SSL, the user must remember to tell the FTP client to use SSL.
To Enforce FTPS
  • Open IIS Manager by pressing your Windows key and typing IIS. (Please note: If you are a Shared hosting customer and want to enforce FTPS, you will need to contact Support)
  • Expand Sites. Select the dedicated IP address.
  • Double click FTP SSL Settings.
  • Choose the settings based on your needs.

    Advanced SSL Policy
Connect to the Site's Files via FTPS
  1. Start FileZilla or another FTP client that supports FTPS.
  2. Click File > Site Manager, then click New Site.
    FileZilla Site Manager

  3. In the Host section type the domain name or IP Address.
  4. In the Encryption field, choose Require explicit FTP over TLS.
  5. In the Logon Type field choose Ask for password.
  6. Supply the user and click ConnectNote: by default the Transfer Settings > Transfer mode should be Default. If Active is chosen, you will get an error related to IIS bindings.

    FileZilla successful FTPS connection

  7. When prompted, enter the password.
  8. You should be successfully connected.

Note: If you are able to download files from your site using FTPS, but can not upload to your site, there is a known TLS bug in Windows Server 2012 that requires a hotfix. You will need to check the box next to Windows 8 RTM to download the correct file. Please contact Support if you have any questions or concerns.

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