[win2kforum] Re: Lost primary DC and AD controller - Help!
- From: "Faulkingham, Shawn" <SFaulkingham@xxxxxxxxxxx>
- To: "'win2kforum@xxxxxxxxxxxxx'" <win2kforum@xxxxxxxxxxxxx>
- Date: Fri, 28 Feb 2003 13:00:19 -0600
Ed -
My apologies, but this is what I have found. There is also a registry key
you need as well. Here is the documentation which should get you where you
need to be:
Additional recovery options
To recover a corrupted DHCP database, you can use the following options for
restoring the database.
* Simple recovery. Restore the database from a backup copy of the
database file, Dhcp.mdb.
This method is recommended as the preferred method of
recovery because it involves less risk of losing information previously
configured and stored by the DHCP server and is much simpler to perform. For
more information, see Reconciling scopes.
* Advanced recovery. Generate a new database file using the DHCP
Configuration registry key.
This method can be useful as an additional method to use for
data recovery where simple restoration of the database is not possible. For
more information, see Moving a DHCP database to another server.
In some cases of apparent DHCP database corruption, you might also want to
determine whether the server has run out of disk space, which could prevent
the DHCP server from continuing to service clients on the network until
there is room to continue growth and expansion of the DHCP database.
Moving a DHCP database to another server
Windows 2000 provides the DHCP console, which allows you to manage DHCP
servers installed and running on a single DHCP server computer. However, the
DHCP console does not allow you to move a database from one installed DHCP
server to another server computer.
This topic provides details of how to move a database from one server
computer to another server computer, assuming the DHCP database and its
backup directories are on default drive and path locations.
Backing up the DHCP server database (at the source server)
Complete the following procedures at the server computer being used as the
source for the DHCP database:
1. Stop the DHCP server.
For more information, see To start or stop a DHCP server.
2. Disable the DHCP Server service in the list of services.
This prevents the DHCP server from starting after the
database has been transferred. To perform this task, use Computer Management
and select the DHCP Server service from the list for it to be disabled.
For more information, see To enable or disable a service for
a hardware profile.
3. Copy the DHCP server directory tree, systemroot\System32\Dhcp, to a
temporary location on the new (destination) DHCP server. For example, copy
the directory tree to C:\Temp\System32\Dhcp.
4. Start the Registry Editor (Regedt32.exe) and go to the following
subkey:
HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet \Services
\DHCPServer
For more information, see To open Registry Editor.
5. Save the specified key to a text file.
For more information, see To save a registry key.
6. Delete the DHCP server database folder, %SystemRoot%\System32\Dhcp,
at the source server.
7. Uninstall the DHCP server to remove it from this server.
For more information, see To remove or uninstall DHCP.
Note
* Steps 6 and 7 are optional.
Restoring the DHCP server database (at the destination server)
Complete the following procedures at the server computer being used as the
destination for the DHCP database:
1. If you have not already installed the DHCP server software, install
it and then restart the server computer.
For more information, see To install a DHCP server.
2. Stop the DHCP Server service.
For more information, see To start or stop a DHCP server.
3. Rename the System.mdb file to System.src in the temporary folder,
such as the C:\Temp\System32\Dhcp directory.
4. Copy the DHCP server directory tree from the temporary folder to
systemroot\System32\Dhcp to replace the existing DHCP server directory.
5. Start Registry Editor (Regedt32.exe) and go to the following subkey:
HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet \Services
\DHCPServer
For more information, see To open Registry Editor.
6. Select the DHCPServer key (located under the Services key).
7. Restore the registry hive information from the file you saved in
Step 5 of the previous section.
For more information, see To restore a registry key.
8. In Restore Key, for File name specify the following:
systemroot\System32\Dhcp\Backup\Dhcpcfg
9. When prompted, click Yes.
After clicking Yes to the prompt to overwrite the existing
registry entries, if you have problems completing the restore operation,
retry the previous step.
Be sure that you are not attempting the restore using
Registry Editor from a remote computer. Also, verify that this error was not
caused by clicking Save Subtree As instead of Save Key as indicated in Step
5 in the previous section when saving registry information at the source
server.
10. Exit Registry Editor.
11. Start the DHCP Server service.
12. Open the DHCP console and use Reconcile All Scopes to reconcile the
DHCP server database to the restored information now merged into the Windows
2000 registry.
For more information, see To reconcile the DHCP database.
Note
Shawn Faulkingham MCSE, CCNA, MCDBA
Senior Network Engineer
Indoff Incorporated
314.997.1122
>-----Original Message-----
>From: Ed Sanborn [mailto:esanborn@xxxxxxxxxxxxx]
>Sent: Friday, February 28, 2003 12:51 PM
>To: win2kforum@xxxxxxxxxxxxx
>Subject: [win2kforum] Re: Lost primary DC and AD controller - Help!
>
>
>I've come so far....
>
>I have Server2 now configured as the AD FSMO master for all 5 roles.
>I'll follow-up later to determine who is best to have them. For now
>I wanted them on a stabler machine.=20
>
>Server1 has now been reinstalled. I have AD loaded and working. DNS
>is loaded, populated correctly and working. =20
>
>I shutdown the DHCP server service and reinstalled my dhcp directory
>from tape. The restore worked without errors. The DHCP service
>starts up but I have NO DHCP zones.....I see that my old files are
>there in the c:\winnt\system32\dhcp directory...what am I missing?
>I clicked on "reconcile" but that didn't do anything....
>
>Kind of frantic now. Supposed to leave early for weekend away.
>This is quickly going to go from bad day to bad weekend if I can't
>get this going soon...:^(
>
>Thanks,
>
> Ed
>
>-----Original Message-----
>From: Faulkingham, Shawn [mailto:SFaulkingham@xxxxxxxxxxx]
>Sent: Friday, February 28, 2003 12:56 PM
>To: 'win2kforum@xxxxxxxxxxxxx'
>Subject: [win2kforum] Re: Lost primary DC and AD controller - Help!
>
>
>
>In your DHCP console go to the properties of the server and find the =
>path to
>the database, which by default should be C:\WINNT\System32\dhcp. Stop =
>the
>DHCP service, and you should be able to copy the backed up database file
>into the directory, then restart your DHCP service. Make sure it is
>authorized as well.
>
>Shawn Faulkingham MCSE, CCNA, MCDBA
>Senior Network Engineer
>Indoff Incorporated
>314.997.1122
>
>>-----Original Message-----
>>From: Ed Sanborn [mailto:esanborn@xxxxxxxxxxxxx]
>>Sent: Friday, February 28, 2003 11:14 AM
>>To: win2kforum@xxxxxxxxxxxxx
>>Subject: [win2kforum] Re: Lost primary DC and AD controller - Help!
>>
>>
>>Hi,
>>
>> I am rebuilding my old server. I am trying to get DHCP restored. =
>When =3D
>>I start
>>setting up DHCP I do not see this Actions:Restore command in the =3D
>>pull-down menu.
>>Does anyone else see this on their DHCP servers?
>>
>>-Ed
>>
>>-----Original Message-----
>>From: Faulkingham, Shawn [mailto:SFaulkingham@xxxxxxxxxxx]
>>Sent: Friday, February 28, 2003 9:58 AM
>>To: 'win2kforum@xxxxxxxxxxxxx'
>>Subject: [win2kforum] Re: Lost primary DC and AD controller - Help!
>>
>>
>>Ed -
>>Verbatim from Technet
>>http://www.microsoft.com/technet/treeview/default.asp?url=3D3D/technet/p=
>rod=3D
>>techn
>>ol/windowsserver2003/proddocs/server/sag_DHCP_pro_DatabaseRestore.asp
>><http://www.microsoft.com/technet/treeview/default.asp?url=3D3D/technet/=
>pro=3D
>>dtech
>>nol/windowsserver2003/proddocs/server/sag_DHCP_pro_DatabaseRestore.asp>=
>3D=
>2
>>0
>>
>>* For DHCP
>>
>>* Open DHCP.=3D20
>>* In the console tree, click the applicable DHCP server.=3D20
>>* On the Action menu, click Restore.
>>* In the Browse For Folder dialog box, select the folder that contains
>>the backup DHCP database, and then click OK.
>>
>>* Notes
>>* To perform this procedure you must be a member of the Administrators
>>group=3D20
>>* or the DHCP Administrators group on the DHCP server.
>>* To open DHCP, click Start, click Control Panel, click Performance
>>and Maintenance, click Administrative Tools, and then double-click =
>DHCP.
>>* Only DHCP databases from the same language version can be restored.
>>For example, a DHCP database from DHCP server running an English =3D
>>language
>>version of the operating system cannot be restored to a DHCP server =3D
>>running
>>a Japanese language version of the operating system.
>>* To restore the DHCP database, the DHCP service is temporarily
>>stopped. When it is stopped, DHCP clients are unable to contact the =
>DHCP
>>server and obtain IP addresses.
>>
>>
>>As for the corrupted system file...I think you need to rebuild at this
>>point, as time, I am sure, is becoming a factor as well.=3D20
>>
>>Shawn Faulkingham MCSE, CCNA, MCDBA
>>Senior Network Engineer
>>Indoff Incorporated
>>314.997.1122
>>
>>-----Original Message-----
>>From: Ed Sanborn [mailto:esanborn@xxxxxxxxxxxxx]=3D20
>>Sent: Friday, February 28, 2003 8:07 AM
>>To: win2kforum@xxxxxxxxxxxxx
>>Subject: [win2kforum] Re: Lost primary DC and AD controller - Help!
>>
>>
>>Yes.
>>
>>-----Original Message-----
>>From: Faulkingham, Shawn [mailto:SFaulkingham@xxxxxxxxxxx]
>>Sent: Friday, February 28, 2003 9:04 AM
>>To: 'win2kforum@xxxxxxxxxxxxx'
>>Subject: [win2kforum] Re: Lost primary DC and AD controller - Help!
>>
>>
>>
>>Did you back up?=3D3D20
>>
>>Shawn Faulkingham
>>Senior Network Engineer
>>Indoff Incorporated
>>314.997.1122
>>
>>-----Original Message-----
>>From: Ed Sanborn [mailto:esanborn@xxxxxxxxxxxxx]=3D3D20
>>Sent: Friday, February 28, 2003 8:00 AM
>>To: win2kforum@xxxxxxxxxxxxx
>>Subject: [win2kforum] Re: Lost primary DC and AD controller - Help!
>>
>>
>>about 125. It's easy to setup but how do I easily recover my
>>DHCP zone info?
>>
>>-----Original Message-----
>>From: Faulkingham, Shawn [mailto:SFaulkingham@xxxxxxxxxxx]
>>Sent: Friday, February 28, 2003 8:46 AM
>>To: 'win2kforum@xxxxxxxxxxxxx'
>>Subject: [win2kforum] Re: Lost primary DC and AD controller - Help!
>>
>>
>>
>>Well...DHCP should be easy enough to set up...how many nodes do you =
>have =3D
>>=3D3D
>>=3D3D3D
>>on
>>the network?
>>
>>Shawn Faulkingham
>>Senior Network Engineer
>>Indoff Incorporated
>>314.997.1122
>>
>>-----Original Message-----
>>From: Ed Sanborn [mailto:esanborn@xxxxxxxxxxxxx]=3D3D3D20
>>Sent: Friday, February 28, 2003 7:41 AM
>>To: win2kforum@xxxxxxxxxxxxx
>>Subject: [win2kforum] Re: Lost primary DC and AD controller - Help!
>>
>>
>>I should have mentioned too that this system is my ONLY DHCP
>>server as well....folks are starting to role into the office
>>not able to get an IP address...time for a vacation....
>>
>>-----Original Message-----
>>From: Faulkingham, Shawn [mailto:SFaulkingham@xxxxxxxxxxx]
>>Sent: Friday, February 28, 2003 8:24 AM
>>To: 'win2kforum@xxxxxxxxxxxxx'
>>Subject: [win2kforum] Re: Lost primary DC and AD controller - Help!
>>
>>
>>
>>Ed -
>>
>>As I am reminiscing about when I had to do something similar...it has =
>to =3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>be
>>done through the command line, since I am assuming that server1 is =3D
>>=3D3D3D3D
>>offline.
>>The issue with using the MMC is that you actually have to connect to =
>the =3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>DC
>>you are trying to seize the roles from. The TechNet article should =3D
>>=3D3D3D3D
>>describe
>>where you would change this in the MMC if you had a healthy Active
>>Directory, but you would need domains and trusts and sites and services =
>=3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>in
>>order to do this. Let me know how it goes.
>>
>>Shawn Faulkingham MCSE, CCNA, MCDBA
>>Senior Network Engineer
>>Indoff Incorporated
>>314.997.1122
>>
>>-----Original Message-----
>>From: Ed Sanborn [mailto:esanborn@xxxxxxxxxxxxx]=3D3D3D3D20
>>Sent: Friday, February 28, 2003 7:17 AM
>>To: win2kforum@xxxxxxxxxxxxx
>>Subject: [win2kforum] Re: Lost primary DC and AD controller - Help!
>>
>>
>>Thanks. To make Server3 the AD master you mentioned I can do this =
>=3D3D
>>=3D3D3D3D3D
>>through the
>>MMC. Where exactly is that accomplished in the MMC? Is this procedure =
>=3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>=3D3D3D3D3D
>>the same
>>as seizing all of the FSMO roles?
>>
>>-Ed
>>
>>-----Original Message-----
>>From: Faulkingham, Shawn [mailto:SFaulkingham@xxxxxxxxxxx]
>>Sent: Friday, February 28, 2003 8:06 AM
>>To: 'win2kforum@xxxxxxxxxxxxx'
>>Subject: [win2kforum] Re: Lost primary DC and AD controller - Help!
>>
>>
>>
>>I would take server3 and make it the master for all AD functions, as =
>you =3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>=3D3D3D3D3D
>>can
>>do this through the MMC or through the command line. Server2 I would =
>=3D
>>=3D3D3D
>>=3D3D3D3D3D
>>make a
>>primary DNS, then rebuild server1 and dcpromo it. There are many ways =
>=3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>=3D3D3D3D3D
>>you
>>can solve this problem, but in order to keep your network up, I believe =
>=3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>=3D3D3D3D3D
>>as a
>>first thought to do the above. Here is the MS article on seizing FSMO =
>=3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>=3D3D3D3D3D
>>roles
>>from one another and a good place to start:
>>
>>http://support.microsoft.com/default.aspx?scid=3D3D3D3D3D3Dkb%3ben-us%3b=
>223=3D
>>78=3D3D
>>7
>>
>>or the TechNet search here
>>
>>http://search.microsoft.com/default.asp?qu=3D3D3D3D3D3DSeizing+roles&boo=
>lea=3D
>>n=3D3D3D=3D3D
>>3D=3D3D3D
>>3D3D=3D3D3D3D
>>ALL&=3D3D3D3D3D
>>nq=3D3D3D3D3D3DNEW&
>>so=3D3D3D3D3D3DRECCNT&p=3D3D3D3D3D3D1&ig=3D3D3D3D3D3D01&ig=
>3D3D3D3D3
>>D3D02&ig=3D3D3D=3D
>>3D3D3D03&i=3D3D
>>g=3D3D3D3D3D3D04=3D3D3D
>>&i=3D3D3D3D3D3D00&i=3D3D3D3D3D=3D3D3D3D
>>3D01&i=3D3D3D3D3D3D02&i=3D3D3D3D3D3D=3D3D3D3D3D
>>03&i=3D3D3D3D3D3D04&i=3D3D3D3D3D3D05&i=3D3D3D3D3D3D06&i=3D3D3
>D3D3D3D0
>>7&i=3D3D3D3D3D3D08&i=3D3D3D3D3D3D09&i=3D3D3D3D3D3D10&i=3D3D3D
>3D3D3D11&i
>>=3D3D3D3D3D3=3D
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>>3D3D13&i=3D3D3D3D3=3D3D3D
>>D3D14&i=3D3D3D3D3D3D15=3D3D3D3D
>>&i=3D3D3D3D3D3D16&i=3D3D3D3D3D3D17&i=3D3D3D3D3D
>>=3D3D3D3D3D3D18&i=3D3D3D3D3D3D19&i=3D3D3D3D3D3D20&i=3D3D3D3D
>3D3D21&i=3D3=
>
>>D3D3D3D3D22=3D
>>
>>&i=3D3D3D3D3D3D23&i=3D3D3D3D3D3D24&i=3D3D3D3D3D3D25&i=3D3D3D3
>D3D3D26&i=3D=
>
>>3D3D3D3D3D=3D
>>27&i=3D3D3D3D3=3D3D
>>D3D28&i=3D3D3D3D3D=3D3D3D
>>3D29&i=3D3D3D3D3D3D30&=3D3D3D3D
>>i=3D3D3D3D3D3D31&i=3D3D3D3D3D3D32&i=3D3D3D3D3D3D=3D3D3D3D3D
>>33&i=3D3D3D3D3D3D34&i=3D3D3D3D3D3D35&i=3D3D3D3D3D3D36&i=3D3D3
>D3D3D3D37
>>&
>>i=3D3D3D3D3D3D38&i=3D3D3D3D3D3D39&siteid=3D3D3D3D3D3Dus/itresource
>s
>>
>>hth,
>>
>>Shawn Faulkingham MCSE, CCNA, MCDBA
>>Senior Network Engineer
>>Indoff Incorporated
>>314.997.1122
>>
>>-----Original Message-----
>>From: Ed Sanborn [mailto:esanborn@xxxxxxxxxxxxx]=3D3D3D3D3D20
>>Sent: Friday, February 28, 2003 6:51 AM
>>To: win2kforum@xxxxxxxxxxxxx
>>Subject: [win2kforum] Lost primary DC and AD controller - Help!
>>
>>
>>Hi folks,
>>
>> I have three DC's: Server1, Server2, and Server3.
>>
>>Server1 : functions as the primary DC, AD, GC and DNS server (this =
>=3D3D3D
>>=3D3D3D3D3D3D
>>machine is now down hard)
>>
>>Server2 : functions as secondary to Server1 including GC, and secondary =
>=3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>=3D3D3D3D3D
>>=3D3D3D3D3D3D
>>for DNS.
>>
>>Server3 : DC, AD, and Exchange 2000 server. =3D3D3D3D3D3D20
>>
>>So, my question is this. Server1 is complaining about not being be =
>able =3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>=3D3D3D3D3D
>>=3D3D3D3D3D3D
>>to find
>>C:\winnt\system32\config\system. I do not have an ERD floppy. Don't =
>=3D3D
>>=3D3D3D3D
>>=3D3D3D3D3D3D
>>flame me.
>>This is an inherited system. At any rate. I DO have an ERD from =
>=3D3D3D
>>=3D3D3D3D3D3D
>>Server2. Also,=3D3D3D3D3D3D20
>>I can start the recovery console from the W2K Server cd. Any ideas on =
>a =3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>=3D3D3D3D3D
>>=3D3D3D3D3D3D
>>repair?
>>If not, and I need to completely reinstall Server1 should I do anything =
>=3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>=3D3D3D3D3D
>>=3D3D3D3D3D3D
>>to make sure
>>it returns as the primary for everything? Should I be promoting =
>Server2 =3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>=3D3D3D3D3D
>>=3D3D3D3D3D3D
>>right now
>>to be the primary or anything?
>>
>>Thanks,
>>
>> -Ed
>>-----
>>
>>To unsubscribe, send a message to win2kforum-request@xxxxxxxxxxxxx and =
>=3D
>>=3D3D
>>=3D3D3D
>>=3D3D3D3D
>>=3D3D3D3D3D
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>>"unsubscribe" in the subject of the message.
>>To reach the administrator(s), send a message to
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>>=3D3D3D3D3D
>>put "unsubscribe" in the subject of the message.
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>>=3D3D3D3D
>>put "unsubscribe" in the subject of the message.
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>>put
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>>put "unsubscribe" in the subject of the message.
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>>win2kforum-admins@xxxxxxxxxxxxxx
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>>To unsubscribe, send a message to win2kforum-request@xxxxxxxxxxxxx and =
>=3D
>>=3D3D
>>put
>>"unsubscribe" in the subject of the message.
>>To reach the administrator(s), send a message to
>>win2kforum-admins@xxxxxxxxxxxxxx
>>-----
>>
>>To unsubscribe, send a message to win2kforum-request@xxxxxxxxxxxxx and =
>=3D
>>=3D3D
>>put "unsubscribe" in the subject of the message.
>>To reach the administrator(s), send a message to =3D3D
>>win2kforum-admins@xxxxxxxxxxxxxx
>>-----
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>>To unsubscribe, send a message to win2kforum-request@xxxxxxxxxxxxx and =
>=3D
>>put
>>"unsubscribe" in the subject of the message.
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>>win2kforum-admins@xxxxxxxxxxxxxx
>>
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>>-----
>>
>>To unsubscribe, send a message to win2kforum-request@xxxxxxxxxxxxx and =
>=3D
>>put "unsubscribe" in the subject of the message.
>>To reach the administrator(s), send a message to =3D
>>win2kforum-admins@xxxxxxxxxxxxxx
>>-----
>>
>>To unsubscribe, send a message to win2kforum-request@xxxxxxxxxxxxx and =
>put
>>"unsubscribe" in the subject of the message.
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>-----
>
>To unsubscribe, send a message to win2kforum-request@xxxxxxxxxxxxx and =
>put "unsubscribe" in the subject of the message.
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