Re: Passive sftp?
- From: Bob Rasmussen <ras@xxxxxxxxx>
- Date: Wed, 5 Mar 2008 09:03:07 -0800 (PST)
On Tue, 4 Mar 2008, Leroy Tennison wrote:
I've heard of passive ftp but this is new to me. I searched the Web for
'passive sftp' and got 32 hits total of which only a few applied and none of
which explained anything.
Is there such a thing? If so, what are it's features and
characteristics? The comment came from a vendor in the context of
"keeps sftp from prompting for a password" which I had associated with
user keys. Is the vendor confused or do they know something I don't?
In the FTP protocol, "passive" means that only one connection is
established, originating in the client. All trafic goes over this
connection. (In non-passive FTP, the server opens a second channel back to
the client.)
No such differentiation exists in SFTP. There is only one connection.
The vendor may be using "passive" in a different sense, but I don't think
it is a widely accepted usage.
Regards,
....Bob Rasmussen, President, Rasmussen Software, Inc.
personal e-mail: ras@xxxxxxxxx
company e-mail: rsi@xxxxxxxxx
voice: (US) 503-624-0360 (9:00-6:00 Pacific Time)
fax: (US) 503-624-0760
web: http://www.anzio.com
street address: Rasmussen Software, Inc.
10240 SW Nimbus, Suite L9
Portland, OR 97223 USA
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