FISH vs SFTP

[Gabriel Dragffy]

when using the differnet protocols with Konqueror... what is the difference?
If I log in to a remote machine the same things happen so are they the same
but just written differently or what?

[Billy Pollifrone]

The protocol is just the 'language' used to communicate. If you're doing a
transfer of a file, you could use ftp, secure-ftp, scp, z-modem or whatever
protocol both ends are set up to understand. It really comes down to the way
the client and servers talk to one another.

Post by Gabriel Dragffy
when using the differnet protocols with Konqueror... what is the difference?
If I log in to a remote machine the same things happen so are they the same
but just written differently or what?
--
kubuntu-users mailing list
https://lists.ubuntu.com/mailman/listinfo/kubuntu-users

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[Christoph Wiesen]

Post by Gabriel Dragffy
are they the same
but just written differently or what?

Exactly. fish:/ and sftp:/ are just different names for the same kio backend
(secure ftp over ssh).

Chris

[Billy Pollifrone]

Post by Christoph Wiesen

Post by Gabriel Dragffy
are they the same
but just written differently or what?

Exactly. fish:/ and sftp:/ are just different names for the same kio backend
(secure ftp over ssh).
Chris

Wow, did I misunderstand the question. Yup they are the same thing. :-D
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[Toby Dickenson]

Post by Christoph Wiesen

Post by Gabriel Dragffy
are they the same
but just written differently or what?

Exactly. fish:/ and sftp:/ are just different names for the same kio
backend (secure ftp over ssh).

Not quite....

The sftp kio uses the sftp subsystem of the ssh server. This is designed for
this purpose, but needs explicit support from the ssh server. Some ssh
servers may not support it, and some may have that subsystem disabled.

The fish kio is very different. It relies on the ssh providing a unix shell,
then it uploads a simple server program written in perl. A beautiful hack and
handy if sftp is not available on your ssh server, but nowhere near the
performance or reliability of sftp.

From a security point of view they are equivalent; both are protected by ssh.

[Christoph Wiesen]

Post by Toby Dickenson

Post by Christoph Wiesen

Post by Gabriel Dragffy
are they the same
but just written differently or what?

Exactly. fish:/ and sftp:/ are just different names for the same kio
backend (secure ftp over ssh).

Not quite....
The sftp kio uses the sftp subsystem of the ssh server. This is designed
for this purpose, but needs explicit support from the ssh server. Some ssh
servers may not support it, and some may have that subsystem disabled.
The fish kio is very different. It relies on the ssh providing a unix
shell, then it uploads a simple server program written in perl. A beautiful
hack and handy if sftp is not available on your ssh server, but nowhere
near the performance or reliability of sftp.
From a security point of view they are equivalent; both are protected by ssh.
--
Toby Dickenson

phew, learned something new here. thanks =)

[Derek Broughton]

Post by Christoph Wiesen

Post by Toby Dickenson
The sftp kio uses the sftp subsystem of the ssh server. This is designed
for this purpose, but needs explicit support from the ssh server.
The fish kio is very different. It relies on the ssh providing a unix
shell, then it uploads a simple server program written in perl.

phew, learned something new here. thanks =)

Me too. Thanks Toby. I've been using fish: all along, and didn't realize
sftp: had an advantage (at least where it can be used).

[Michel D'HOOGE]

Post by Toby Dickenson
The fish kio is very different. It relies on the ssh providing a unix shell,
then it uploads a simple server program written in perl. A beautiful hack and
handy if sftp is not available on your ssh server, but nowhere near the
performance or reliability of sftp.
From a security point of view they are equivalent; both are protected by ssh.

According to what you wrote, I would rather say "from a cryptographic point
of view". Indeed, both are equally encrypted but there could be more ("still
to be found") security holes in the perl script than in SFTP. Or can we
really rely on SSH to protect everything... I believe SFTP is harder to
"escape".
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[Raphaël Pinson]

Post by Toby Dickenson

Post by Christoph Wiesen

Post by Gabriel Dragffy
are they the same
but just written differently or what?

Exactly. fish:/ and sftp:/ are just different names for the same kio
backend (secure ftp over ssh).

Not quite....
The sftp kio uses the sftp subsystem of the ssh server. This is designed
for this purpose, but needs explicit support from the ssh server. Some ssh
servers may not support it, and some may have that subsystem disabled.

It is also true the other way : iirc you can have an ssh server allowing sftp
connection but not ssh. You will then be able to use secure ftp through ssh
on this server, even using RSA/DSA key pairs for authentication on it, but
not to log on a remote shell with ssh and execute commands.
--
Rapha?l Pinson
<***@ubuntu.com>
Ubuntu - Linux for Human Beings
http://www.ubuntulinux.org
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