et pourtant.... ça a marché !! Ca me dit d'envoyer un mail à Emmanuel Viennet, donc je le fais ! Merci, Christine message =command failed with status 256 (( acquired lock nis_refresh: login=cc ) released lock Traceback (most recent call last): File "/export/AdminRedHat/tools/users/create_user.py", line 414, in ? COMMANDS[command]( login ) File "/export/AdminRedHat/tools/users/create_user.py", line 65, in nis_refresh cnx = OpenDBConnexion() File "/export/AdminRedHat/tools/users/usertools.py", line 232, in OpenDBConnexion return DB.connect( DB_CNX_STRING ) psycopg.OperationalError: could not connect to server: Connection refused Is the server running on host localhost and accepting TCP/IP connections on port 5432? ) in usertools.py:def zope_account_action:ssh -x -T -l root -i /var/www/.ssh/id_rsa lipn-sf1 action=nisrefresh cc.