[Samba] REMOVING A MACHINE ACCOUNT

[Fabrizio Celli]

Hi everybody,
I installed samba-2.2.3a on a Red Hat 7.2 and I succesfully joined the 
samba domain with some w2k clients.
I need to remove a machine account from the domain in order to deny the 
access to the domain to a particular client.
I tried removing the machine entry from the smbpasswd and the /etc/passwd 
but I continue logging on without any problem.
What's wrong ?