I've installed new DCs that don't replicate at first. As soon as I issue the 
w32tm command I listed below replication kicks off. Not in all cases, but a 
few. 

 

 

Thanks,

Anthony Scott

Microsoft Consultant

Mobile 616-481-9722 | Desk 616-464-6369 | [EMAIL PROTECTED]

   <http://www.berbee.com/> 

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of joe
Sent: Thursday, November 16, 2006 1:25 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] Strange DC behavior and error

 

Windows machines get time based on their config... if they aren't set to use a 
specific server and just follow the Windows architecture, they use the DC that 
authenticated the secure channel. This usually means members go to a local DC, 
the local DC goes to the PDC of the domain they are in and the Domain PDCs go 
to the forest root PDC. 

 

The NET TIME command (except for /querysntp) does not accurately reflect what 
DC is being used for the time service. Search on posts from Bob Free in the 
archives, he has laid this out in painful detail at least 4 or 5 times on 
exactly how it all works. 

 

What specifically have you seen not working as advertised?

 

   joe

 

--

O'Reilly Active Directory Third Edition - http://www.joeware.net/win/ad3e.htm 

 

 

 

________________________________

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Scott, Anthony
Sent: Thursday, November 16, 2006 10:55 AM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] Strange DC behavior and error

Windows is supposed to get it's time from the PDC role holder, sometimes though 
this does not work as advertised. So I usually issue this command on any new 
DCs I bring up:

W32tm /config /synchfromflags:DOMHIER /update

Then:

Net stop w32time & net start w32time

 

 

Thanks,

Anthony Scott

 

 

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of hboogz
Sent: Thursday, November 16, 2006 10:21 AM
To: ActiveDir@mail.activedir.org
Subject: Re: [ActiveDir] Strange DC behaviour and error

 

the same issue started happening last night about 10:35 last night. this was 
after i plugged in my DR link to the ad box out at my disaster recovery site.

I came in this morning only to find that when i run a NET TIME from my DC's it 
was resolving this DR Domain Controller. 

i disconnected the link, reset the local machine passwords, rebooted and all is 
up now.

what gives ? anyone have any ideas ?

On 11/15/06, hboogz <[EMAIL PROTECTED]> wrote:

Hey Guys,

Thanks for responses.

I've been stuck in the data center for the past few hours.

Here goes:

It all started with this error in the event log:

Event Type:    Error
Event Source:    Kerberos
Event Category:    None
Event ID:    4
Date:        11/15/2006
Time:        03:17:45 PM 
User:        N/A 
Computer:    PHMAINDC1
Description:
The kerberos client received a KRB_AP_ERR_MODIFIED error from the server 
host/phmaindc1.phippsny.org.  The target name used was cifs/PHMAINDC1. This 
indicates that the password used to encrypt the kerberos service ticket is 
different than that on the target server. Commonly, this is due to identically 
named  machine accounts in the target realm ( PHIPPSNY.ORG), and the client 
realm.   Please contact your system administrator.

For more information, see Help and Support Center at 
http://go.microsoft.com/fwlink/events.asp.

Then it became all of these:

Event Type:    Warning
Event Source:    LSASRV
Event Category:    SPNEGO (Negotiator) 
Event ID:    40960
Date:        11/15/2006
Time:        03:13:19 PM
User:        N/A
Computer:    PHMAINDC1
Description: 
The Security System detected an authentication error for the server 
cifs/PHMAINDC1.phippsny.org.  The failure code from authentication protocol 
Kerberos was "The attempted logon is invalid. This is either due to a bad 
username or authentication information. 
 (0xc000006d)".

For more information, see Help and Support Center at 
http://go.microsoft.com/fwlink/events.asp .
Data:
0000: 6d 00 00 c0               m..À    


Event Type:    Error
Event Source:    Userenv 
Event Category:    None
Event ID:    1030
Date:        11/15/2006
Time:        02:58:23 PM
User:        PHIPPSNY\Administrator
Computer:    PHMAINDC1
Description:
Windows cannot query for the list of Group Policy objects. Check the event log 
for possible messages previously logged by the policy engine that describes the 
reason for this. 

For more information, see Help and Support Center at 
http://go.microsoft.com/fwlink/events.asp.

Event Type:    Error
Event Source:    Userenv
Event Category:    None
Event ID:    1053
Date:        11/15/2006
Time:        03:03:19 PM
User:        NT AUTHORITY\SYSTEM
Computer:    PHMAINDC1
Description:
Windows cannot determine the user or computer name. (Access is denied. ). Group 
Policy processing aborted. 

For more information, see Help and Support Center at 
http://go.microsoft.com/fwlink/events.asp.

Strangely, the maindc, phmaindc1, lost its forward lookup zone (ad-int) and 
it's reverse lookup zone ( ad-int ) but my second DC maintained them. I tried 
adding the zones back into phmaind1, only to get an error indicating "invalid 
data". 

So, what i did was make all working zones on the working DC primary ( non-ad) 
and added secondary zones into phmaindc1.

i tried, dcdiag /fix and netdiag /fix - but nothing.

tried restarting the netlogon service - nothing. 

I came across the forums that indicated the PTR and A record entries -- didn't 
find any duplicates or wrong entries, everything is a one-to-one mapping.

I then looked inside wins, and didn't see any conflicts. Because I've had 
issues with wins in the  past, i deleted both wins databases and created new 
ones from scratch. 

That didn't work.

i then attmpeted a net time from the DC in question and got another DC in our 
DR site. This DR server is not holding any roles and isn't accessible to all of 
our workstations. I tried to force this server as the authoritative Time server 
settings the annouceFlags to A, but it didn't take. 

I disabled the link to the DR site, but the problems persisted.

Every time i would attempt a Net Time from a client workstation, i would get a 
"Access Denied"

grr

I then came across the recommendation to reset the local machine account 
password of the DC's. 

using the NETBIOS name of phmaindc1 didn't work, i needed to use the IP.

netdom resetpwd /s:192.168.1.1 /ud:domain\username /pd:*

rebooted ( ran above while KDC service was running ) 

That didn't work.

I then needed to reset the local machine account for the other DC that was 
working fine 

once i reset that using netdom and rebooted, everything came back up.


whew!

Now that i've created non AD-int dns zones, i saw somewhere someone recommended 
deleting my previous created dns partititions and recreating them and making 
the zones AD-int again.

i've tried -- DNSCMD /DELETEDIRECTORYPARTITION 

but i need the FQDN of the partition, which i dont know ?

any ideas on what to do to cleanup what's going on ?

or any insight as to why this happened and what design,implementation change i 
could do to prevent it ? 

Thanks for the responses,
















On 11/15/06, Scott, Anthony < [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > 
wrote:

Verify DNS is working properly and that DCs are synching time. These are two 
things that can cause Kerberos/ log on problems. Also, make sure there is not 
another computer object in AD, DNS record, WINS record named phmaindc1.

 LMK if you need help in doing these tasks. 

 

 

Thanks,

Anthony Scott

Microsoft Consultant

Mobile 616-481-9722 | Desk 616-464-6369 | [EMAIL PROTECTED]

  <http://www.berbee.com/> 

From: [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> ] 
On Behalf Of hboogz
Sent: Wednesday, November 15, 2006 12:43 PM
To: ActiveDir@mail.activedir.org
Subject: [ActiveDir] Strange DC behaviour and error

 

Hey Guys,

 

I receive this error on my DC and my newly created Citrix Server.

 

Event Type: Error
Event Source: Kerberos
Event Category: None
Event ID: 4
Date:  11/15/2006
Time:  12:30:17 PM
User:  N/A
Computer: PHMAINDC1
Description:
The kerberos client received a KRB_AP_ERR_MODIFIED error from the server 
host/phmaindc1.phippsny.org.  The target name used was 
DNS/phmaindc1.phippsny.org. This indicates that the password used to encrypt 
the kerberos service ticket is different than that on the target server. 
Commonly, this is due to identically named  machine accounts in the target 
realm ( PHIPPSNY.ORG), and the client realm.   Please contact your system 
administrator.

For more information, see Help and Support Center at 
http://go.microsoft.com/fwlink/events.asp .

 

The citrix server can't connect to the termincal server licensing component on 
here and everytime a user logs in, they receive an access denied indicated that 
they could retrieve their TS profile information.

 

everytime i try to run dsa.msc on the citrix box, i get an error.

 

I'm running windows 2003 standard R2 on AD and standard w/ SP1 on the citrix 
box.

 

I also get this error/message when i run dcdiag on the dc

 

 

         The account PHMAINDC1 is not a DC account.  It cannot replicate.
         Warning:  Attribute userAccountControl of PHMAINDC1 is: 0x1000 = ( UF_W
ORKSTATION_TRUST_ACCOUNT )
         Typical setting for a DC is 0x82000 = ( UF_SERVER_TRUST_ACCOUNT | 
UF_TR 
USTED_FOR_DELEGATION )
         This may be affecting replication?

 

any ideas ? i'm stuck with all my citrix users being denied logon!

 

 

 

 



-- 
HBooGz:\> 





-- 
HBooGz:\> 




-- 
HBooGz:\> 

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