nanog mailing list archives

Re: quietly....


From: Randy Carpenter <rcarpen () network1 net>
Date: Thu, 3 Feb 2011 16:31:43 -0500 (EST)

----- Original Message -----
Well, since ssh is a straight up tcp socket protocol on a well know
port with no gimmicks needed like FTP, yeah, I would say it isn't a
hack. FTP over TLS/SSL is much worse. In some implementations you can
do an non-encrypted control channel and an encrypted data channel, so
that a SPI firewall can "hack" it through, but unfortunately a lot of
servers and/or clients won't negotiate that correctly and only allow
both type of channels to be encrypted which is not possible to pass
through a SPI firewall.

There are two other sorta widely implemented secure file transfer
protocols, SCP and WebDav over TLS/SSL. Either works fine through a
SPI firewall, but the consensus for file transfer (at least over the
pub net) within the financial services community appears to be
converging to FTP over ssh.

Do you mean sftp, or ftp over an ssh tunnel?

-Randy



Current thread: