On Wed Jan 14 17:16:01 UTC 2009, nate centos at linuxpowered.net wrote:
It's a long shot but check that /bin/su is setuid ?
From a 5.1 system:
-rwsr-xr-x 1 root root 24060 Mar 21 2007 /bin/su
This is what I have on that host:
# ll /bin/su -rwxr-xr-x 1 root root 24120 May 24 2008 /bin/su
su -l runs ok. It prompts for a password, but it invariably fails saying that the wrong password has been entered.