Multiple audit failures (event 4625) between two Exchange servers

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M

Mishutka

My setup:
Exchange server (MAIL1) with roles: CAS, HUB and MailBox Edge server (TMG1) with role: Edge + Forefront TMG + Forefront Protection for Exchage Both servers are members of the same domain, edgesync is established (start-edgesynchronization retsults with success)

I can see multiple, almost one event per minute, Audit Failures in the Security event log on the TMG1 Server. Resource monitor on MAIL1 shows that connection is established by Microsoft.Exchange.EdgeSyncSvc.exe (PID 2020). TMG logging tool shows that for every audit failure event there is a connection established and closed abortively.

Any ideas how to get this fixed?

Here is some info:

Initiated Connection TMG1 30.09.2010 20:38:45 Log type: Firewall service Status: The operation completed successfully. Rule: [System] Allow LDAP/LDAPS traffic to the local host for the Exchange Server EdgeSync synchronization process Source: Internal (192.168.16.2:59731) Destination: Local Host (192.168.16.1:50636) Protocol: LDAPS(EdgeSync)

Closed Connection TMG1 30.09.2010 20:38:45 Log type: Firewall service Status: A connection was abortively closed after one of the peers sent an RST packet. Rule: [System] Allow LDAP/LDAPS traffic to the local host for the Exchange Server EdgeSync synchronization process Source: Internal (192.168.16.2:59731) Destination: Local Host (192.168.16.1:50636) Protocol: LDAPS(EdgeSync)

An account failed to log on. Subject: Security ID: NULL SID Account Name: - Account Domain: - Logon ID: 0x0 Logon Type: 3 Account For Which Logon Failed: Security ID: NULL SID Account Name: Account Domain: Failure Information: Failure Reason: An Error occured during Logon. Status: 0xc000006d Sub Status: 0x80090325 Process Information: Caller Process ID: 0x0 Caller Process Name: - Network Information: Workstation Name: - Source Network Address: 192.168.16.2 Source Port: 8232 Detailed Authentication Information: Logon Process: Schannel Authentication Package: Microsoft Unified Security Protocol Provider Transited Services: - Package Name (NTLM only): - Key Length: 0 This event is generated when a logon request fails. It is generated on the computer where access was attempted.
 
C

Catastrophic Failure

Hi Mishutka,

This issue occurs because the user name is not logged if an incorrect PIN causes the credential initialization to fail. Therefore, the user name does not appear in the event that has the Event ID 4625.

For more information take a look here:

ü The Security event that has Event ID 4625 does not contain the user account name on a computer that is running Windows Vista, Windows Server 2008, Windows 7, or Windows Server 2008 R2

Regards
Catastrophic Failure “JV”

Catastrophic failure is a sudden and total failure of some system from which recovery is impossible...Thats me....!
 
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