Re: Finally managed to create a jailed SFTP server, but how secure?

["Larry Hall (Cygwin)" <reply-to-list-only-lh at cygwin dot com>]

TheO wrote:
> Larry Hall wrote:
> > No, you cannot hide it.  It is created by Cygwin itself as a convenience
> > to access the virtual 'cygdrive' directory.  This is one of a number of
> > virtual directories ('/proc' and '/dev' come to mind) that Cygwin supports.
> > See the description of "Special filenames" in the User's Guide for more
> > details.
>
> I understand why all these virtual directories are necessary at the absolute
> '/' root level. But here I refer to /cygdrive which is created inside the jail
> directory, which means in absolute path, /jail/cygdrive (/jail being the root 
> of my jail). Inside the jail, only /cygdrive is created, no other virtual 
> directories (/proc or /dev/xxx) or files are created.

Created or not, they exist.  Try it.

> > In 1.7, there is a
> > new authentication module that will solve these and other pubkey
> > authentication problems.  But 1.7 is not currently released and it's
> > release date is not decided.
>
> Thanks for this input. I suppose that to be on safe side, I must restrict 
> it to password based authentication only if I use the current Cygwin.

This removes the impersonation piece of the puzzle, yes.

> And finally one more question. I am only aware of two subsystems supported
> by sshd more or less implicitely; sftp and shell (interactive logon). Is there
> any other subsystems which are handled by sshd implicitely (without me having
> to add anything to /etc/sshd_config)?

Can't answer that.


--
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746

_____________________________________________________________________

A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?

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