OK so I just deleted the missing DC from Active Directory Users and Computers and a few messages appeared:
Log Name: Directory Service
Source: NTDS ISAM
Date: 17/06/2024 14:46:29
Event ID: 2001
Task Category: (16)
Level: Information
Keywords: Classic
User: N/A
Computer: PDC.domain.local
Description:
NTDS (736,D,0) NTDSA: Shadow copy instance 1 freeze started.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="NTDS ISAM" />
<EventID Qualifiers="0">2001</EventID>
<Level>4</Level>
<Task>16</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2024-06-17T13:46:29.039945900Z" />
<EventRecordID>7942</EventRecordID>
<Channel>Directory Service</Channel>
<Computer>PDC.domain.local</Computer>
<Security />
</System>
<EventData>
<Data>NTDS</Data>
<Data>736,D,0</Data>
<Data>NTDSA: </Data>
<Data>1</Data>
</EventData>
</Event>
Log Name: Directory Service
Source: Microsoft-Windows-ActiveDirectory_DomainService
Date: 17/06/2024 14:46:37
Event ID: 1917
Task Category: Backup
Level: Information
Keywords: Classic
User: SYSTEM
Computer: PDC.domain.local
Description:
The shadow copy backup for Active Directory Domain Services was successful.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-ActiveDirectory_DomainService" Guid="{0e8478c5-3605-4e8c-8497-1e730c959516}" EventSourceName="NTDS General" />
<EventID Qualifiers="16384">1917</EventID>
<Version>0</Version>
<Level>4</Level>
<Task>14</Task>
<Opcode>0</Opcode>
<Keywords>0x8080000000000000</Keywords>
<TimeCreated SystemTime="2024-06-17T13:46:37.660920000Z" />
<EventRecordID>7943</EventRecordID>
<Correlation />
<Execution ProcessID="736" ThreadID="7440" />
<Channel>Directory Service</Channel>
<Computer>PDC.domain.local</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
</EventData>
</Event>
Log Name: Directory Service
Source: Microsoft-Windows-ActiveDirectory_DomainService
Date: 17/06/2024 14:59:42
Event ID: 2041
Task Category: Internal Processing
Level: Information
Keywords: Classic
User: N/A
Computer: PDC.domain.local
Description:
Duplicate event log entries were suppressed.
See the previous event log entry for details. An entry is considered a duplicate if the event code and all of its insertion parameters are identical. The time period for this run of duplicates is from the time of the previous event to the time of this event.
Event Code:
8000082c
Number of duplicate entries:
10
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-ActiveDirectory_DomainService" Guid="{0e8478c5-3605-4e8c-8497-1e730c959516}" EventSourceName="NTDS General" />
<EventID Qualifiers="16384">2041</EventID>
<Version>0</Version>
<Level>4</Level>
<Task>9</Task>
<Opcode>0</Opcode>
<Keywords>0x8080000000000000</Keywords>
<TimeCreated SystemTime="2024-06-17T13:59:42.469700200Z" />
<EventRecordID>7944</EventRecordID>
<Correlation />
<Execution ProcessID="736" ThreadID="2076" />
<Channel>Directory Service</Channel>
<Computer>PDC.domain.local</Computer>
<Security />
</System>
<EventData>
<Data>8000082c</Data>
<Data>10</Data>
</EventData>
</Event>
Log Name: Directory Service
Source: Microsoft-Windows-ActiveDirectory_DomainService
Date: 17/06/2024 14:59:42
Event ID: 1123
Task Category: Knowledge Consistency Checker
Level: Information
Keywords: Classic
User: ANONYMOUS LOGON
Computer: PDC.domain.local
Description:
The Knowledge Consistency Checker (KCC) deleted the following Connection object because the source directory service that it referenced has been deleted.
Object:
CN=f3d6d81e-0c76-4dd2-a83a-b74c01f89e4d,CN=NTDS Settings,CN=PDC,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=domain,DC=local
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-ActiveDirectory_DomainService" Guid="{0e8478c5-3605-4e8c-8497-1e730c959516}" EventSourceName="NTDS General" />
<EventID Qualifiers="16384">1123</EventID>
<Version>0</Version>
<Level>4</Level>
<Task>1</Task>
<Opcode>0</Opcode>
<Keywords>0x8080000000000000</Keywords>
<TimeCreated SystemTime="2024-06-17T13:59:42.469700200Z" />
<EventRecordID>7945</EventRecordID>
<Correlation />
<Execution ProcessID="736" ThreadID="2076" />
<Channel>Directory Service</Channel>
<Computer>PDC.domain.local</Computer>
<Security UserID="S-1-5-7" />
</System>
<EventData>
<Data>CN=f3d6d81e-0c76-4dd2-a83a-b74c01f89e4d,CN=NTDS Settings,CN=PDC,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=domain,DC=local</Data>
</EventData>
</Event>
Log Name: Directory Service
Source: Microsoft-Windows-ActiveDirectory_DomainService
Date: 17/06/2024 14:59:47
Event ID: 1272
Task Category: Knowledge Consistency Checker
Level: Information
Keywords: Classic
User: ANONYMOUS LOGON
Computer: PDC.domain.local
Description:
The following directory partition is no longer replicated from the source directory service at the following network address because there is no Connection object for the directory service.
Directory partition:
DC=domain,DC=local
Source directory service:
Network address:
b4821c33-2b18-41af-a2f2-f06818133623._msdcs.domain.local
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-ActiveDirectory_DomainService" Guid="{0e8478c5-3605-4e8c-8497-1e730c959516}" EventSourceName="NTDS General" />
<EventID Qualifiers="16384">1272</EventID>
<Version>0</Version>
<Level>4</Level>
<Task>1</Task>
<Opcode>0</Opcode>
<Keywords>0x8080000000000000</Keywords>
<TimeCreated SystemTime="2024-06-17T13:59:47.123278700Z" />
<EventRecordID>7946</EventRecordID>
<Correlation />
<Execution ProcessID="736" ThreadID="2076" />
<Channel>Directory Service</Channel>
<Computer>PDC.domain.local</Computer>
<Security UserID="S-1-5-7" />
</System>
<EventData>
<Data>DC=domain,DC=local</Data>
<Data>b4821c33-2b18-41af-a2f2-f06818133623._msdcs.domain.local</Data>
<Data>
</Data>
</EventData>
</Event>
And after a few minutes the domain had resolved it's replication problems as the partner no longer existed and the domain returned to normal functionality and we could join machines etc. once more.
Edited by user
5 months ago
|
Reason: Not specified