Encountered an issue today while playing around with openSUSE 11 and setting it up as a primary domain controller using Samba and LDAP.  After installing and configuring the required software on the openSUSE box I joined an XP workstation to the domain.  I thought that success was mine at this point given it joined correctly, but alas as I tried the initial login to the domain I received the “Domain is not available” error.  I logged in locally and just for kicks tried to add a domain user to the local security group, I received the error “Trust relationship failed.”    As it turn out this issue has to do with the version of Samba that comes installed on openSUSE 11.  The issue can be resolved through either running
zypper ar http://download.opensuse.org/repositories/network:/samba:/STABLE/openSUSE_11.0/network:samba:STABLE.repo
zypper ref
zypper up -t package

or through updating Samba to the newest version using online update.

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