AD controllers wont synchronize data


i have 3 domain controllers in 2008 ad environment. days ago found 1 corrupt , caused problems. server first server in domain , holds certificate service + dfs registrations. servers running on vmware. decided restore de server old backup (12 months old). restored server fine off course outdated , needs synchronized 2 existing.

first cleaned little in dns following procedure:

renamed system32\config\netlogon.dns , netlogon.dnb files
ipconfig /registerdns
net stop netlogon
net start netlogon

that eliminated first error had replication. “the target principal name is
incorrect” next remove lingerine objects using: repadmin /removelingeringobjects restored_server1.domain.com 83feb989-46eb-4c0b-9c6f-bae9ec24542c "dc=domain, dc=com"

then tried following:

repadmin /replicate restored_server1.domain.com working_dc.domain.com dc=domain,dc=com /force

repadmin /replicate restored_server1.domain.com working_dc.domain.com cn=configuration, dc=domain,dc=com /force

repadmin /replicate restored_server1.domain.com working_dc.domain.com cn=schema,cn=configuration, dc=domain,dc=com /force

c:\users\administrator > repadmin /replicate restored_server1.domain.com working_dc.domain.com dc=domain,dc=com /force

repadmin can't connect "home server", because of following error.  try

specifying different home server /homeserver:[dns name]

error: ldap lookup operation failed following error:

 

    ldap error 82(0x52): local error

    server win32 error 0(0x0):

    extended information:

 

 

c:\users\administrator> repadmin /replicate restored_server1.domain.com working_dc.domain.com cn=configuration, dc=domain,dc=com /force

repadmin can't connect "home server", because of following error.  try specifying different home server /homeserver:[dns name]

error: ldap lookup operation failed following error:

 

    ldap error 82(0x52): local error

    server win32 error 0(0x0):

    extended information:

 

 

c:\users\administrator> repadmin /replicate restored_server1.domain.com working_dc.domain.com cn=schema,cn=configuration, dc=domain,dc=com /force

repadmin can't connect "home server", because of following error.  try

specifying different home server /homeserver:[dns name]

error: ldap lookup operation failed following error:

 

    ldap error 82(0x52): local error

    server win32 error 0(0x0):

    extended information:

 

so tried same 3 commands on restored domain controller.

repadmin /replicate restored_server1.domain.com working_dc.domain.com dc=domain,dc=com /force

repadmin /replicate restored_server1.domain.com working_dc.domain.com cn=configuration, dc=domain,dc=com /force

repadmin /replicate restored_server1.domain.com working_dc.domain.com cn=schema,cn=configuration, dc=domain,dc=com /force

 

c:\users\administrator > repadmin /replicate restored_server1.domain.com working_dc.domain.com dc=domain,dc=com /force

dsreplicasync() failed status 8418 (0x20e2):

    the replication operation failed because of schema mismatch between servers involved.

 

 

c:\users\administrator > repadmin /replicate restored_server1.domain.com working_dc.domain.com cn=configuration, dc=domain,dc=com /force

dsreplicasync() failed status 8418 (0x20e2):

    the replication operation failed because of schema mismatch between servers involved.

 

 

c:\users\administrator > repadmin /replicate restored_server1.domain.com working_dc.domain.com cn=schema,cn=configuration, dc=domain,dc=com /force

dsreplicasync() failed status 8451 (0x2103):

    the replication operation encountered database error.

 

any appreciated :-)

i have 3 domain controllers in 2008 ad environment. days ago found 1 corrupt , caused problems. server first server in domain , holds certificate service + dfs registrations. servers running on vmware. decided restore de server old backup (12 months old). restored server fine off course outdated , needs synchronized 2 existing.

you restored dc using 12 months old backup , backup has crossed tombstone period. running certificate services dfs on dc bad design , problem when simple option can done using demote , re-promote of dc when run dc additonal applications.

did use system state backup restore dc or image/snapshot/clone, cloning/imaging/snapshot dc not recommended.

http://support.microsoft.com/kb/888794

the above errors showing secure channel broken, schema mismatch due old been used , see more problems now. should have never been used 12months old backup , backup dc should used based on tombstone period configured in environment.

my suggestion transfer necessary services other dc(if possible ca/dfs on member server) , demote dc.

there no difference between first dc , last dc, because dc shares same info except application installed on particular dc. suggestion demote dc , transfer fsmo role, time server role or other services running on dc dc.

 

regards  


awinish vishwakarma

my blog:  awinish.wordpress.com


this posting provided as-is no warranties/guarantees , confers no rights.


Windows Server  >  Directory Services



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