WARNING! The
UserID and Password are transmitted on the Clear Control Channel and are
not encrypted when Clear Control Channel is enabled.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 would not be able to 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,
From the MenuBar select Session:Configure and select a Connection to edit.
In the Security tab, enable the Enable Secure Sockets Layer checkbox.
Enable the Enable Clear Control Channel check box.
WARNING! The
UserID and Password are transmitted on the Clear Control Channel and are
not encrypted when Clear Control Channel is enabled.