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User account lockout with LSASRV errors

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profit

IS-IT--Management
Jun 25, 2002
2
GB
A user is getting there domain account locked out every couple of hours with the following event log errors:

Event Type: Warning
Event Source: LSASRV
Event Category: SPNEGO (Negotiator)
Event ID: 40961
Date: 17/07/2003
Time: 18:20:18
User: N/A
Computer: HIGGS
Description:
The Security System could not establish a secured connection with the server LDAP/remus.prophet.co.uk. No authentication protocol was available.

and:

Event Type: Warning
Event Source: LSASRV
Event Category: SPNEGO (Negotiator)
Event ID: 40960
Date: 17/07/2003
Time: 18:20:18
User: N/A
Computer: HIGGS
Description:
The Security System detected an attempted downgrade attack for server LDAP/remus.prophet.co.uk. The failure code from authentication protocol Kerberos was "The user account has been automatically locked because too many invalid logon attempts or password change attempts have been requested.
(0xc0000234)".





 
Make sure you have a SVR record in your DNS that points to a Windows 2000 Service that is tied into Active Directory.



"In space, nobody can hear you click..."
 
All the LDAP severce locations are setup in the DNS. I am using the DNS that comes with Windows 2000. This is only a problem on one PC at the moment , though it would have to be the MD,s.
 
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