Configure the FTP SSL Policy

Applies To: Windows 7, Windows Server 2008, Windows Server 2008 R2, Windows Vista

Configure SSL policy settings to specify how the FTP server handles SSL connections with clients.

To configure the FTP SSL policy

  1. Open IIS Manager.

  2. In the Connections pane, select the server node.

  3. In Features View, double-click FTP SSL Settings.

  4. Under SSL Policy, select one of the following options:

    • Allow SSL connections: Allows the FTP server to support both non-SSL and SSL connections with a client.

    • Require SSL connections: Requires SSL encryption for communication between the FTP server and a client.

    • Custom: Enables you to configure a different SSL encryption policy for the control channel and data channel. Click Advanced to configure the custom encryption policy. For more information, see Configure the FTP SSL Encryption Policy for the Control Channel and Data Channel.

  5. Optionally, select Use 128-bit encryption for SSL connections. Content encrypted by using 128-bit SSL encryption is more difficult to decrypt than content encrypted by using the minimum 40-bit encryption level, so that data transfers are better protected. Although greater encryption key strengths offer better security, they also require more server resources to implement.


If you require 128–bit encryption, users must use FTP clients that support 128–bit encryption.

  1. In the Actions pane, click Apply.

See Also


Configuring FTP SSL Settings