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[Samba] Bad DSA objectGUID ed8970e5-84cc-43dd-89f1-4af8d6ab675a for sid S-1-5-21-570971082-1333357699-3675202899-1375




Hello,I'm using samba ad dc about a year. I have 2 DCs, One is DC1 with FSMO role.  And another is DC2.
        there's a error in DC1 when i use dbcheck tool. And samba-tool dbcheck --cross-ncs--fix can't fix that. And  I made a big mistake !
        In DC2 I use "tdbbackup -s .bak /var/lib/samba/private/sam.ldb" create a bak file. and using that bak file replace the sam.ldb file  in DC1 without any backup.
        Now , I saw the errors in DC1:

Feb 08 22:06:04 dc1.adagene.cn samba[32137]:   UpdateRefs failed with WERR_DS_DRA_ACCESS_DENIED/NT code 0xc0002105 for ed8970e5-84cc-43dd-89f1-4af8d6ab675a._msdcs.adagene.cn DC=adagene,DC=cn
Feb 08 22:06:04 dc1.adagene.cn samba[32129]: [2018/02/08 22:06:04.078274,  0] ../source4/dsdb/common/util.c:4825(dsdb_validate_dsa_guid)
Feb 08 22:06:04 dc1.adagene.cn samba[32129]:   ../source4/dsdb/common/util.c:4825: Bad DSA objectGUID ed8970e5-84cc-43dd-89f1-4af8d6ab675a for sid S-1-5-21-570971082-1333357699-3675202899-1375 - expected sid S-1-5-21-570971082-1333357699-3675202899-1689
Feb 08 22:06:04 dc1.adagene.cn samba[32129]: [2018/02/08 22:06:04.078367,  0] ../source4/rpc_server/drsuapi/updaterefs.c:374(dcesrv_drsuapi_DsReplicaUpdateRefs)
Feb 08 22:06:04 dc1.adagene.cn samba[32129]:   ../source4/rpc_server/drsuapi/updaterefs.c:374: Refusing DsReplicaUpdateRefs for sid S-1-5-21-570971082-1333357699-3675202899-1375 with GUID ed8970e5-84cc-43dd-89f1-4af8d6ab675a
Feb 08 22:06:04 dc1.adagene.cn samba[32137]: [2018/02/08 22:06:04.078521,  0] ../source4/dsdb/repl/drepl_out_helpers.c:1087(dreplsrv_update_refs_done)
Feb 08 22:06:04 dc1.adagene.cn samba[32137]:   UpdateRefs failed with WERR_DS_DRA_ACCESS_DENIED/NT code 0xc0002105 for ed8970e5-84cc-43dd-89f1-4af8d6ab675a._msdcs.adagene.cn CN=Configuration,DC=adagene,DC=cn
Feb 08 22:07:00 dc1.adagene.cn samba[32129]: [2018/02/08 22:07:00.803258,  0] ../source4/rpc_server/drsuapi/writespn.c:238(dcesrv_drsuapi_DsWriteAccountSpn)

        the sid S-1-5-21-570971082-1333357699-3675202899-1375 should be DC1 and sid S-1-5-21-570971082-1333357699-3675202899-1689 should be DC2.
        The Directory Replication failed and when I ping dc1.adagene.cn or dc2.adagene.cn in the DC1 host, the same IP address of the DC1 is retruned.

when I run the command below in DC1:        
# ldbsearch -H sam.ldb '(invocationId=*)' --cross-ncs objectguid

it returns:
# record 1
dn: CN=NTDS Settings,CN=DC1,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=adagene,DC=cn
objectGUID: 99804022-ab9e-4c0a-921b-f6f13b6da4c8

# record 2
dn: CN=NTDS Settings,CN=DC2,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=adagene,DC=cn
objectGUID: ed8970e5-84cc-43dd-89f1-4af8d6ab675a

the result is the same in DC2.

        How can I fix these errors.
        Thank you.

            yours Adam


        
         




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