Hello, I'm having two DC in my domain. When I run # samba-tool dbcheck I receive 27 errors on the first one and 49 on the second one. All errors are like this one: ERROR: target DN is deleted for member in object CN=Medical Office,CN=Users,DC=muc,DC=medizinische-genetik,DC=de - <GUID=dae3b481-4ca2-49f2-b3f2-0d617d277c7d>;<SID=S-1-5-21-1362721961-1801182073-732966438-17206>;CN=mschmoelz\0ADEL:dae3b481-4ca2-49f2-b3f2-0d617d277c7d,CN=Deleted Objects,DC=muc,DC=medizinische-genetik,DC=de Target GUID points at deleted DN CN=mschmoelz\0ADEL:dae3b481-4ca2-49f2-b3f2-0d617d277c7d,CN=Deleted Objects,DC=muc,DC=medizinische-genetik,DC=de When I run # samba-tool dbcheck --cross-ncs I receive only on my first DC 102 errors of this kind: Not fixing nTSecurityDescriptor on DC=_ldap._tcp.pdc,DC=_msdcs.muc.medizinische-genetik.de,CN=MicrosoftDNS,DC=ForestDnsZones,DC=muc,DC=medizinische-genetik,DC=de My questions: 1.) Why do I have a different ammount of errors on each server. Are this replication errors? 2.) Does Samba has to be running when doing the "--fix"? Or has it to be repaired offline on each DC? And is this the same when running with "--cross-ncs"? 3.) What had caused this two kind of errors? The user mentioned in the first message is one, that has been deleted during the past month. This dbcheck I run after upgrading from 4.0.9 to 4.1.0 (I haven't run it before the upgrade). Regards, Marc