How to guideAdditional features and optionsConfiguring the clear control channel feature

Configuring the clear control channel feature

BlueZone Secure FTP supports using Secure Sockets layer, where both the control channel and data channel are encrypted, or where only the data channel is encrypted and the control channel is not. The latter is known as clear control channel.

Clear control channel is useful when end users need to FTP through a firewall using secure methods. Firewalls depend on seeing the data in the control channel to know which port to open for the data channel. If the data in the control channel were encrypted, the firewall cannot see the PORT or PASV commands to know which port to open. Using clear control channel enables the firewall to open the correct ports.

To enable the clear control channel:
  1. From the menu bar, click Session → Configure.
  2. Select a Connection to edit.
  3. In the Security tab, enable the Enable Secure Sockets Layer check box.
  4. Enable the Enable Clear Control Channel check box.
    Note: The user ID and password are transmitted on the clear control channel and are not encrypted when clear control channel is enabled.
Parent topic: Additional features and options