cannot set groups - Error

[Aaron Bliss]

Kurian,
Is the suid bit set on the su binary?

Aaron

-----Original Message-----
From: redhat-list-bounces at redhat.com [mailto:redhat-list-bounces at redhat.com]
On Behalf Of Kurian Thayil
Sent: Saturday, January 10, 2009 12:35 AM
To: redhat-list at redhat.com
Subject: cannot set groups - Error

Hi All,

One of the RHEL 5.1 servers that I have installed is giving me the error
*"su:
cannot set groups: Operation not permitted"* whenever I try doing *su -* as
an ordinary user. /etc/passwd and /etc/group is world readable and owner and
group is root.

*[kurian at rhel-test ~]$ ls -l /etc/passwd;ls -l /etc/group
-rw-r--r-- 1 root root 1656 Jan  9 21:06 /etc/passwd
-rw-r--r-- 1 root root 646 Jan  9 21:06 /etc/group*

The following is the log message in /var/log/secure whenever I do this
operation.

*Jan 10 16:31:15 rhel-test su: pam_keyinit(su-l:session): Unable to change
GID to 0 temporarily
Jan 10 16:31:15 rhel-test su: pam_keyinit(su-l:session): Unable to change
GID to 0 temporarily
Jan 10 16:31:15 rhel-test su: pam_unix(su-l:session): session opened for
user root by kurian(uid=500)
Jan 10 16:31:15 rhel-test su: pam_unix(su-l:session): session closed for
user root*

I am able to login to the server directly as root. Do suggest some tips to
resolve this issue. Thanks in advance.

Regards,

Kurian Mathew Thayil.
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