Re: Can't run whoami(id -un) inside chroot jail using openssh native jail support

Yeah I though maybe permissions but I also adjusted those. This is
whats really strange look at the output of this:

#ls -la /etc
total 900
drwxr-xr-x  3 0 0   4096 Jul 24 17:04 .
drwxr-xr-x 17 0 0   4096 Jul 22 17:00 ..
-rw-r--r--  1 0 0     11 Jul 22 17:00 group
-rwxr-xr-x  1 0 0    245 Jul 22 17:00 hosts
-rwxr-xr-x  1 0 0  24120 Jul 22 17:00 ld.so.cache
-rwxr-xr-x  1 0 0     28 Jul 22 17:00 ld.so.conf
drwxr-xr-x  2 0 0   4096 Jul 22 17:00 ld.so.conf.d
-rwxr-xr-x  1 0 0   1696 Jul 22 17:00 nsswitch.conf
-rw-r--r--  1 0 0    144 Jul 24 17:04 passwd
-rwxr-xr-x  1 0 0     66 Jul 22 17:00 resolv.conf
-rw-r--r--  1 0 0 807103 Jul 22 17:00 termcap

it doesn't even seem to be able to translate the name/groups in the
directory listing.






On Thu, Jul 24, 2008 at 6:14 PM, Jon Kibler <Jon.Kibler@aset.com> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> D M wrote:
> > OS: RHEL5.2
> > Openssh: 5.0p1 and now 5.1
> >
> > I have successfully setup a chroot jail using openssh's new native
> > jail support and almost everything appears to be working
> > (ls,cd,cat,uname,etc,ect). However I can't run any commands that
> > identify the user.. such as ld -un whoami logname. They all fail with
> > this result:
> >
> > #whoami
> > whoami: cannot find name for user ID 503
> > #id
> > uid=503 gid=504 groups=504
> > #id -un
> > id: cannot find name for user ID 503
> > 503
> > #logname
> > 503
>
> I don't mean to ask really dumb questions, but can you:
>   cat /etc/passwd
>   cat /etc/group
>   grep -F ':503:' /etc/passwd
>   grep -F ':504:' /etc/group
>
> from within the jail?
>
> If not, you may have directory ownership/permissions problems. For
> example, in a jail, make sure /etc o:g=root:root & perm=0551.
>
> I know you said you have checked... but just adding another approach.
>
> Jon Kibler
> - --
> Jon R. Kibler
> Chief Technical Officer
> Advanced Systems Engineering Technology, Inc.
> Charleston, SC  USA
> o: 843-849-8214
> c: 843-224-2494
> s: 843-564-4224
>
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