[cobalt-users] Cannot su root from user having RSA public key

[Mohamed Ould <ouldm@xxxxxxxxxxxxxxxxxxxxx>]

Hello,

I'm using RSA authentification private/public for one user  on  Raq3i.
All work fine except that I cannot su root from the home of this user
on the server after connexion.
If I type su root, then give root password it tell me that password it
not correct. The password is correct and I can su root from any other
user except that user having RSA authentification.

Here my sshd_config:
  # This is ssh server systemwide configuration file.

Port 22
ListenAddress 0.0.0.0
HostKey /etc/ssh_host_key
RandomSeed /etc/ssh_random_seed
ServerKeyBits 768
LoginGraceTime 600
KeyRegenerationInterval 3600
PermitRootLogin yes
IgnoreRhosts yes
StrictModes yes
QuietMode no
X11Forwarding no
X11DisplayOffset 10
FascistLogging no
PrintMotd yes
KeepAlive yes
SyslogFacility DAEMON
RhostsAuthentication no
RhostsRSAAuthentication yes
RSAAuthentication yes
PermitEmptyPasswords yes
UseLogin no
# CheckMail no
# PidFile /u/zappa/.ssh/pid
# DenyHosts lowsecurity.theirs.com *.evil.org evil.org
# Umask 022
# SilentDeny yes
#PasswordAuthentication no

Any comment on this file is welcome.

Thanks