Re: SFTP versus FTP over SSH2

From: Richard E. Silverman (res_at_qoxp.net)
Date: 03/08/05


Date: 08 Mar 2005 09:42:38 -0500


>>>>> "NKG" == Nico Kadel-Garcia <nkadel@comcast.net> writes:

    NKG> SFTP does not suppurt the commands "mput", "mget", "ls -R", or
    NKG> "ls *.txt". Its user interface is pitiful compared to a real FTP
    NKG> system,...

Let's be clear here: these are properties of some sftp client
implementations. The SFTP protocol supports all these things.

    NKG> contents of the symlinks. It also does not restrict the users to
    NKG> their own directories unless you very carefully build in chroot
    NKG> cages, which the OpenSSH authors have never been willing to
    NKG> incorporate into their source and which the commercial SSH
    NKG> authors do by stupid things like creating a login that is a
    NKG> "chroot shell script". If you don't shudder at that phrase, you
    NKG> should.

This hasn't been true for some time; the Tectia chroot features are
implemented in the server.

>> What SFTP client are you using that supports traditional FTP over
>> SSH?

    NKG> Yeah, this has me confused too.

As I mentioned in an earlier post, several SSH clients do this in
different ways, including Tectia and VanDyke SecureFX.

-- 
  Richard Silverman
  res@qoxp.net


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