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Network Security Secure-Shell
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Re: scp and Linux Restricted Shell

from [Darren Tucker] Network Security [Permanent Link]
Subject: Re: scp and Linux Restricted Shell
Date: Tue, 02 Nov 2004 21:59:34 +1100
Robert Hajime Lanning wrote: 
On Fri, 29 Oct 2004 15:21:48 -0700, Caprio, Don
<don.caprio@bankofamerica.com> wrote:

Anybody have a clue why scp will not work with F-Secure when the OpenSSH client 
is using
a restricted shell? I haven't been able to try with F-secure at both ends.


I am not sure but try giving access, via rbash, to exec the
"sftp-server" binary.

Restricted usually shells won't allow executing binaries by full path, which is what "Subsystem sftp /usr/libexec/openssh/sftp-server" in OpenSSH's sshd_config does.

Try putting a link to sftp-server someplace in the restricted shell's path, change the line in sshd_config to "Subsystem sftp sftp-server" and restart sshd.

You might also want to investigate "rssh", a restricted shell specifically for scp and sftp connections.

--
Darren Tucker (dtucker at zip.com.au)
GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4  37C9 C982 80C7 8FF4 FA69
    Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.

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