Two accounts getting locked out

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Guest

I have two accounts that get locked out fairly regularly, mine and the DBA's.
We seem to notice it when we try to rdp into a server.

We are running a parent child domain here with Windows 2000 SP4 servers. We
just changed the password policy here and thats when it seemed to start
happening.

Anyone have any ideas?

Thanks
 
John McCoy said:
I have two accounts that get locked out fairly regularly, mine and the DBA's.
We seem to notice it when we try to rdp into a server.

We are running a parent child domain here with Windows 2000 SP4 servers. We
just changed the password policy here and thats when it seemed to start
happening.

Anyone have any ideas?

Which RDP client? Do you have your (old) password encoded
into the RDP client or any other software that might be robotically
re-trying...?
 
I don't but am checking with the DBA to see if he does. I am also checking
each server we log into regularly via rdp and setting a disconnect after log
off policy.

Thanks

Herb Martin said:
John McCoy said:
I have two accounts that get locked out fairly regularly, mine and the DBA's.
We seem to notice it when we try to rdp into a server.

We are running a parent child domain here with Windows 2000 SP4 servers. We
just changed the password policy here and thats when it seemed to start
happening.

Anyone have any ideas?

Which RDP client? Do you have your (old) password encoded
into the RDP client or any other software that might be robotically
re-trying...?

--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]
 
I don't but am checking with the DBA to see if he does. I am also checking
each server we log into regularly via rdp and setting a disconnect after log
off policy.

I think that would be the other way around (but it
should NOT affect this issue-- either reconnecting
OR logging on anew both count as authentication
failure if you make a mistake.)

You can disconnect without logging off but not
loggoff without disconnecting.

I keep my (personal) RDP servers set to NEVER
logoff after disconnect -- practically never a problem.

This is UNSUITABLE for application mode Terminal
Server where each license needs to be released as soon
as practical.

--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]

John McCoy said:
Thanks

Herb Martin said:
John McCoy said:
I have two accounts that get locked out fairly regularly, mine and the DBA's.
We seem to notice it when we try to rdp into a server.

We are running a parent child domain here with Windows 2000 SP4
servers.
We
just changed the password policy here and thats when it seemed to start
happening.

Anyone have any ideas?

Which RDP client? Do you have your (old) password encoded
into the RDP client or any other software that might be robotically
re-trying...?

--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]
 
I am seeing some event ID 1083's in the event log which says the foillowing.
I saw several events that pointed to my account but none to the other
account. I am thinking this is the issue.


SYMPTOMS
During Active Directory replication, you may receive the following warning
in the Directory Service event log on the domain controller:

Event ID : 1083
Event Type: Warning
Event Source: NTDS Replication
Event Category: Replication
Event ID: 1083
Description:
Replication warning: The directory is busy. It couldn't update object CN=...
with changes made by directory GUID._msdcs.domain. Will try again later.

Back to the top

CAUSE
This issue may occur for the following reasons: • A change occurred that
triggers an urgent replication. For additional information, click the
following article number to view the article in the Microsoft Knowledge Base:
232690 Urgent replication triggers in Windows 2000
Or, a change that is made on multiple domain controllers is replicated very
quickly, especially for intra-site cases.
For additional information about intra-site cases, click the following
article number to view the article in the Microsoft Knowledge Base:
214678 How to modify the default intra-site domain controller replication
interval
These scenarios may occur when you change your password. The change is
forwarded to the primary domain controller (PDC) Emulator, and if the change
is in the same site, and the domain controller is busy, the change may
replicate back in. While the local directory service is still in the process
of writing the change, and therefore locks the object, the change is
replicating in also, and an error occurs. To verify this, type repadmin
/showmeta object distinguished name. Check the time stamp on the event
against the change time stamp of relevant attributes like unicodePwd or
lockoutTime. Typically, the latter attribute may already be cleared or be
changed again when you look it up some time after the event occurred (this
may depend on your lock-out policy). If the time stamp matches, you can
ignore the event.
• A duplicate object is present in Active Directory for the replication
partner of the local domain controller. When the local domain controller
receives the replication updates that contain duplicate objects from the
domain controller's replication partner, the local domain controller cannot
perform the updates on those objects, and therefore it logs a warning in the
directory service event log.


Herb Martin said:
I don't but am checking with the DBA to see if he does. I am also checking
each server we log into regularly via rdp and setting a disconnect after log
off policy.

I think that would be the other way around (but it
should NOT affect this issue-- either reconnecting
OR logging on anew both count as authentication
failure if you make a mistake.)

You can disconnect without logging off but not
loggoff without disconnecting.

I keep my (personal) RDP servers set to NEVER
logoff after disconnect -- practically never a problem.

This is UNSUITABLE for application mode Terminal
Server where each license needs to be released as soon
as practical.

--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]

John McCoy said:
Thanks

Herb Martin said:
I have two accounts that get locked out fairly regularly, mine and the
DBA's.
We seem to notice it when we try to rdp into a server.

We are running a parent child domain here with Windows 2000 SP4 servers.
We
just changed the password policy here and thats when it seemed to start
happening.

Anyone have any ideas?

Which RDP client? Do you have your (old) password encoded
into the RDP client or any other software that might be robotically
re-trying...?

--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]


Thanks
 
What does DCDiag on each DC show?

The following is focused on DNS for AD but has
some AD troubleshooting references too....


DNS for AD
1) Dynamic for the zone supporting AD
2) All internal DNS clients NIC\IP properties must specify SOLELY
that internal, dynamic DNS server (set.)
3) DCs and even DNS servers are DNS clients too -- see #2
4) If you have more than one Domain, every DNS server must
be able to resolve ALL domains (either directly or indirectly)

netdiag /fix

....or maybe:

dcdiag /fix

(Win2003 can do this from Support tools):
nltest /dsregdns /server:DC-ServerNameGoesHere
http://support.microsoft.com/kb/q260371/

Ensure that DNS zones/domains are fully replicated to all DNS
servers for that (internal) zone/domain.

Also useful may be running DCDiag on each DC, sending the
output to a text file, and searching for FAIL, ERROR, WARN.

Single Label domain zone names are a problem Google:
[ "SINGLE LABEL" domain names DNS 2000 | 2003 microsoft: ]
 
I need to install the support tools on the server. One thing is that it
always points to the mail server so I deleted and recreated my Outlook
profile and it seems to be better. I have not had a single account lockout
today.

John
 
Maybe a bad password for Exchange server (2000+) or
some other item that required you to logon using NT-security?

Chances are you could (should) have just removed or straightened
out the accounts.

It could also have been some file share access where you saved
the user/password and the auto-connect was causing it....

Turning on Account Logon and checking the even log might have
narrowed it down (or if it reappears you might try that.)

--
Herb Martin, MCSE, MVP
Accelerated MCSE
http://www.LearnQuick.Com
[phone number on web site]

John McCoy said:
I need to install the support tools on the server. One thing is that it
always points to the mail server so I deleted and recreated my Outlook
profile and it seems to be better. I have not had a single account lockout
today.

John

Herb Martin said:
What does DCDiag on each DC show?

The following is focused on DNS for AD but has
some AD troubleshooting references too....


DNS for AD
1) Dynamic for the zone supporting AD
2) All internal DNS clients NIC\IP properties must specify SOLELY
that internal, dynamic DNS server (set.)
3) DCs and even DNS servers are DNS clients too -- see #2
4) If you have more than one Domain, every DNS server must
be able to resolve ALL domains (either directly or indirectly)

netdiag /fix

....or maybe:

dcdiag /fix

(Win2003 can do this from Support tools):
nltest /dsregdns /server:DC-ServerNameGoesHere
http://support.microsoft.com/kb/q260371/

Ensure that DNS zones/domains are fully replicated to all DNS
servers for that (internal) zone/domain.

Also useful may be running DCDiag on each DC, sending the
output to a text file, and searching for FAIL, ERROR, WARN.

Single Label domain zone names are a problem Google:
[ "SINGLE LABEL" domain names DNS 2000 | 2003 microsoft: ]
 
John McCoy said:
I have two accounts that get locked out fairly regularly, mine and the
DBA's.
We seem to notice it when we try to rdp into a server.

We are running a parent child domain here with Windows 2000 SP4 servers.
We
just changed the password policy here and thats when it seemed to start
happening.

Anyone have any ideas?

Thanks

I've had something like this, when I was logging in on a specific computer
on our company domain. All domain admin account except the build-in where
almost immediately locked. I started using security auditing on failed logon
attempts. The logs filled themselves with lots of pre-authentication
failures.

The cause if this strange behavior lied in my case in a virus that slipped
throught our scanners that continously tried to login to admin shares using
pre-defined passwords and accounts that have admin privileges. We removed
the virus, after that we haven't had any trouble with locked-out admins.


Maybe this can help you in your quest for an answer,

Marcel
 
Thanks, I turned on auditing but nothing is popping up. The server that was
coming up was my Exchange server, I deleted my mail profile and recreated it
and it seems much better.

Thanks
 
John McCoy said:
Thanks, I turned on auditing but nothing is popping up. The server that was
coming up was my Exchange server, I deleted my mail profile and recreated it
and it seems much better.

If you profile contained the offending account/password then
it wouldn't show anything in Account Logon auditing if you
deleted that (problem.)
 
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