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[linux-security] Re: ssh and chroot...

daemon@ATHENA.MIT.EDU (David LaPorte)
Thu May 18 19:57:07 2000

X-Reply-To: <david_laporte@harvard.edu>
From: "David LaPorte" <david_laporte@harvard.edu>
To: "Mike Bowie" <mike@goforgold.com>, <linux-security@redhat.com>
Date: Mon, 8 May 2000 23:13:49 -0400
Message-ID: <LPBBKOBLDKJIOOLEIEHHEECMHKAA.david_laporte@harvard.edu>
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I did something similar with telnetd by hacking login to accept an option
that specified a directory to chroot to and specifying it via telnetd "-L"
option.  I suppose the same thing would work with ssh if you compiled with
the "--with-login" option.  Let me know if you'd like the (admittedly
trivial) patch for login.c.

Dave LaPorte
  -----Original Message-----
  From: Mike Bowie [mailto:mike@goforgold.com]
  Sent: Wednesday, April 19, 2000 3:51 PM
  To: linux-security@redhat.com
  Subject: [linux-security] ssh and chroot...


  I have a RedHat 6.0 x86 server which is serving a number of minor things,
which I wish to add shell access to.

  I'm currently running sshd and am quite happy with it, the exceptiong
being that I am unable to make sshd perform a chroot for shell account
users.

  I have been reading man pages and howto's, many of which discuss sshd or
chroot, but never the two together.

  Is this not an option?  Or an I missing the point?

  Mike.

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<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D739370103-09052000>I did=20
something similar with telnetd by hacking login to accept an option that =

specified a directory to chroot to and specifying it via telnetd "-L"=20
option.&nbsp; I suppose the same thing would work with ssh if you =
compiled with=20
the "--with-login" option.&nbsp; Let me know if you'd like the =
(admittedly=20
trivial) patch for login.c.</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D739370103-09052000><BR>Dave LaPorte</SPAN></FONT></DIV>
<BLOCKQUOTE style=3D"MARGIN-RIGHT: 0px">
  <DIV align=3Dleft class=3DOutlookMessageHeader dir=3Dltr><FONT =
face=3DTahoma=20
  size=3D2>-----Original Message-----<BR><B>From:</B> Mike Bowie=20
  [mailto:mike@goforgold.com]<BR><B>Sent:</B> Wednesday, April 19, 2000 =
3:51=20
  PM<BR><B>To:</B> linux-security@redhat.com<BR><B>Subject:</B> =
[linux-security]=20
  ssh and chroot...<BR><BR></DIV></FONT>
  <DIV><FONT face=3DArial size=3D2>I have a RedHat 6.0 x86 server which =
is serving a=20
  number of minor things, which I wish to add shell access =
to.</FONT></DIV>
  <DIV>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>I'm currently running sshd and am =
quite happy=20
  with it, the exceptiong being that I am unable to make sshd perform a =
chroot=20
  for shell account users.</FONT></DIV>
  <DIV>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>I have been reading man pages and =
howto's, many=20
  of which discuss sshd or chroot, but never the two =
together.</FONT></DIV>
  <DIV>&nbsp;</DIV>
  <DIV><FONT face=3DArial size=3D2>Is this not an option?&nbsp; Or an I =
missing the=20
  point?</FONT></DIV>
  <DIV>&nbsp;</DIV>
  <DIV><FONT face=3DArial =
size=3D2>Mike.</FONT></DIV></BLOCKQUOTE></BODY></HTML>

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