Support for CCC Command

kevanbrown · 04-28-2005, 01:49 PM

Some FTPS servers now support the Clear Command Channel (CCC) command. This tells the FTPS server that immediately after secure login, you'd like the command channel to become unencrypted. This adds more support for firewalled environments. With the command channel in the clear, the firewall can see the response to the PASV command and dynamically open the appropriate ports for the data connection.

bigstar · 04-28-2005, 02:47 PM

Could you please list a ftp server that supports CCC so we can look into supporting this feature. I tried a few and none of them seemed to support it.

kevanbrown · 04-28-2005, 02:50 PM

Ipswitch WS_FTP Server 5.x
GlobalSCAPE Secure FTP Server 3.x

Thanks,

Kevan

kevanbrown · 05-26-2005, 10:22 AM

Clients which I've tested that currently support this feature:

Ipswitch WS_FTP Pro 9.x
CuteFTP Pro 7.x

Thanks,

Kevan

bigstar · 05-26-2005, 11:04 AM

Your suggestion came too late for v3.2, it will most likely be added in v3.4