Have numerous Debian5 systems doing winbind authentication to AD domain. Has been working fine for years. Had flat name space until recently. Now using subdomains and hit snag. Already have a dev2.x.y.com. Now adding dev2.z.y.com (subdomain x vs subdomain z). Joining the new system replaced the previous system in AD. They both show up in AD as dev2. Tried numerous changes, e.g. /etc/hosts, hostname, net join -n, etc. None have worked. Hoping someone has already solved this problem with name space collisions in subdomains within a single AD domain.