SFTP Administration?
Janina Sajka
janina at afb.net
Mon Apr 1 11:17:06 EST 2002
Hmmm, you're right. An sftp client request opens over ssh and launches
sftp-server.
So, now I've forgotten your earlier question. You wouldn't use this for
anonymous logins, right? So, why restrict bonafide users on your system to
uploads in certain directories?
On Mon, 1 Apr 2002, Steve Holmes wrote:
> I realize that, but when one uses SFTP for secured FTP sessions, they come
> into ssh and as far as I can tell, no ftp servers are involved. Is this
> the correct observation? If so, then my questions from my previous
> questions still apply. I'm still wondering which windows ftp clients work
> with sftp. FTP Voyager seems to support SSL incrypted ftp but seemingly
> only with Serve-U server. I see no mention of sftp (part of ssh) for this
> client. I also would like to see progress messages when I do sftp like
> you get with ncftp but the standard sftp client doesn't seem to offer
> this. I haven't had a chance to look at lftp to see if it is any better.
>
> I hope this is clearer now:).
>
> On Mon, 1 Apr 2002, Janina Sajka wrote:
>
> > Steve:
> >
> > sftp is a client, not a server. If you want to tighten ftp against known
> > security issues, read the documentation provided with the ftp servers.
> > There's no need to reinvent the wheel.
> > On Sun, 31 Mar 2002, Steve Holmes
> > wrote:
> >
> > > I know, this doesn't have to do with speakup but I have a question for
> > > anyone who might have had some experience with Secured FTP (SFTP). So
> > > far, I realize that SFTP is a subset of ssh so I don't think any of
> > > the conventional FTP servers like proftp have any chips in the deal.
> > > I'm setting such a thing up on a private machine for my friend and
> > > haven't been able to find much on controling access and rights. What
> > > I've done so far is to add users on this machine like any other shell
> > > accounts but force their default directory to be /home/ftp instead of
> > > /home/user-id. I then put some symbolic links in this ftp directory
> > > to point to the various download areas. So far, the permissions look
> > > good but I'd like to tighten things up a bit; I would like to "lock"
> > > the users into the /home/ftp directory and subdirs. Another rinkle
> > > here is the sym links. Once you cd to a symlinked directory, doing a
> > > cd .. takes up from that point, and not back to where you were
> > > before. One big disadvantage to symbolic links, I guess.
> > >
> > > Another question, are there any sftp clients out there for linux that
> > > might be a bit better than the strait sftp command? I wish ncftp could
> > > do it, but it doesn't look like it can. Also many of the future users
> > > of this machine are from winblows; what are some good sftp clients for
> > > winblows? Personally, I like FTP Voyager but 9.0 has SSL support but
> > > does not appear to do sftp specifically. I think it may be locked
> > > into connectivity with their own server, Serv-u.
> > >
> > > Any ideas on this stuff?
> > >
> > > _______________________________________________
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> > > Speakup at braille.uwo.ca
> > > http://speech.braille.uwo.ca/mailman/listinfo/speakup
> > >
> >
> >
>
>
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--
Janina Sajka, Director
Technology Research and Development
Governmental Relations Group
American Foundation for the Blind (AFB)
Email: janina at afb.net Phone: (202) 408-8175
Chair, Accessibility SIG
Open Electronic Book Forum (OEBF)
http://www.openebook.org
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