Re: Can't run whoami(id -un) inside chroot jail using openssh native jail support
- From: "D M" <dm.mlist@xxxxxxxxx>
- Date: Thu, 24 Jul 2008 18:24:20 -0500
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@xxxxxxxx> wrote:
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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
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