back on the list again. I'm setting up a samba4 domain controller and I need servers in the new active directory to trust the old samba 3 domain. The wizard in the active directory domains and trusts snap in doesn't recognize the name of the samba 3 domain as valid, even though that machine resolves all the netbios names just fine (with lmhosts) Can I do it manually right from the samba4 pdc? Thanks.