nscd returns random login when UIDs are shared (glibc 2.2.5)

[Marc MERLIN]

Hi,

Forgive me if this is not a bug, I couldn't find a way to fix my problem.

I have a setup with shared root accounts where every admin has its own root
account with UID/GID 0

root:*:0:0:root:/root:/bin/bash
Radmin1:x:0:0:admin1 root:/root:/bin/bash
Radmin2:x:0:0:admin2 root:/root:/bin/bash

The problem is that nscd doesn't cope well with that and pseudo-randomly 
returnsRadmin1 or root for uid 0.
As in:
stan:~# l /etc/passwd
-rw-r--r--    1 Rmerlin  root         2642 Mar 21 11:25 /etc/passwd
stan:~# id
uid=0(Rmerlin) gid=0(root) groups=0(root)
stan:~# groups root
root : root localprint
stan:~# id
uid=0(root) gid=0(root) groups=0(root)
stan:~# l /etc/passwd
-rw-r--r--    1 root     root         2642 Mar 21 11:25 /etc/passwd
stan:~# l /lib/libc.so.6     
lrwxrwxrwx    1 root     root           13 Mar 21 10:15 /lib/libc.so.6 -> 
libc-2.2.5.so*

nscd.conf has:
        enable-cache            passwd          yes
        positive-time-to-live   passwd          30
        negative-time-to-live   passwd          10
        suggested-size          passwd          1999
        check-files             passwd          yes

Is this a bug?
Is there a workaround, i.e. a way to have nscd not cache UID 0, or always map
it back to the first entry in /etc/passwd?

Thanks,
Marc
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Microsoft is to operating systems & security ....
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