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Topic: Backup Domain Controller

	Upgrading a Backup Domain Controller
		Upgrading a LAN Manager 2.2 backup domain controller to an Advanced Server/9000 backup domain controller is performed in two stages.
		When replication is completed and the backup domain controller is able to display the accounts, the upgrade procedure is completed by executing the lmu_upgrade command manually.
		Verify that the primary domain controller is active on the network and that the administrative account and password exist on the primary domain controller.
	docs.hp.com /en/J2716-90046/ch03s02.html (1047 words)

	Domain controller - Wikipedia, the free encyclopedia
		On Windows Server Systems, the domain controller (DC) is the server that responds to security authentication requests (logging in, checking permissions, etc.) within the Windows Server domain.
		In Windows NT, the central domain controller was known as the Primary Domain Controller (PDC), of which there could only be one with this role; all other domain controllers were identified as Backup Domain Controllers (BDC).
		In Windows 2000 and later the concept of primary and secondary domain controllers were eliminated, partially to emphasize the multi-master replication technology available in Windows; however, there are still a number of master roles that only one domain controller can perform: schema master, domain naming master, infrastructure master, Relative ID master, and the PDC Emulator.
	en.wikipedia.org /wiki/Domain_controller (211 words)

	Trusts (Site not responding. Last check: 2007-10-30)
		Each backup domain controller stores a replica of the database on the primary domain controller, which is replicated periodically to distribute changes made to the main database on the PDC.
		Domain B is configured to trust Domain A. As a result, if a user is successful at logging on to Domain A, Domain B assumes that the user has been authenticated properly.
		Domains E and F trust one another, as do domains F and G. Domains E and G, however, do not trust each other because trusts do not pass through Domain F. If all domains are to trust each other, it is necessary to establish trust relationships between each pair of domains.
	members.tripod.com /bluemusic/trusts.htm (3881 words)

	Compaq Advanced Server for OpenVMS
		A primary domain controller can only have its role changed to backup domain controller if another computer in the domain is acting as the current primary domain controller.
		When the original primary domain controller is restarted, use this command to explicitly demote it to backup domain controller.
		Controls whether you are prompted for a confirmation before removing all permissions from a directory or files.
	www.cuis.edu /doc_vms_html/000000/731final/6544/6544pro_8.html (2197 words)

	Administration Guide (Site not responding. Last check: 2007-10-30)
		Users can then be authenticated on the backup domain controller at their site instead of requiring a call to the primary domain controller (PDC) for authentication.
		The advantage of having a backup domain controller, in this case, is that users are authenticated faster and the LAN is not as congested as it would have been had there been no BDC.
		Note that the user name and local or global group do not need to be defined on the domain where the database server is running, but they must be on the same domain as each other.
	www.seas.ucla.edu /db2/db2d0/db2d0309.htm (1163 words)

	What is domain controller? - a definition from Whatis.com - see also: PDC, BDC, backup domain controller, primary ...
		Primary domain controller (PDC) and backup domain controller (BDC) are roles that can be assigned to a server in a network of computers that use the Windows NT operating system.
		In Windows NT, a domain combines some of the advantages of a workgroup (a group of users who exchange access to each others' resources on different computers) and a directory (a group of users who are managed centrally by an administrator).
		The domain concept not only allows a user to have access to resources that may be on different servers, but it also allows one domain to be given access to another domain in a trust relationship.
	whatis.techtarget.com /definition/0,289893,sid9_gci283996,00.html (458 words)

	A Domain Controller Web Directory and Resources
		Using Ntdsutil.exe to transfer or seize FSMO roles to a domain controller.
		As you can see, configuring samba as a domain controller and domain member is a fairly easy job...
		Primary domain controller (PDC) and backup domain controller (BDC) are roles that can be assigned to a server in a network of computers that use the...
	www.canadadesigns.com /adomaincontroller (349 words)

	Administration Guide (Site not responding. Last check: 2007-10-30)
		To have DB2 determine the domain for which the local machine is a backup domain controller, use:
		DB2 does not use an existing backup domain controller by default because a backup domain controller can get out-of-sync with the primary domain controller, causing a security exposure.
		Domain controllers get out-of-sync when the primary domain controller's security database is updated but the changes are not propagated to a backup domain controller.
	www.seas.ucla.edu /db2/db2d0/db2d0308.htm (149 words)

	backup domain controller (Site not responding. Last check: 2007-10-30)
		You specify the What is a domain to DB UDB by setting the DB UDB does not use an existing backup domain controller by default because a backup php on line Backup Domain Controller Fail To Replicate Your ultimate Website domain registration fail to replicate resource.
		Domain Public domain Fail To Replicate Sponsors Search the php on line Backup Domain Controller Fail To Replicate Your ultimate backup domain controller fail to replicate resource.
		When you perform a system state backup on a domain controller that is...
	domain.areyoulostfan.info /backup-domain-controller (727 words)

	BDC - Backup Domain Controller (Site not responding. Last check: 2007-10-30)
		An abbreviation for Backup Domain Controller, a Windows NT server that provides an alternative source of authentication for network users.
		Account and group information from a Primary Domain Controller (PDC) is replicated periodically to each BDC in the domain.
		Backup Domain Controller: A copy of PDC information is kept on a "backup" machine to ensure high availability and spread network/system load in Lan Manager domains.
	www.auditmypc.com /acronym/BDC.asp (233 words)

	Backup Software (Site not responding. Last check: 2007-10-30)
		Backup for Workgroups is a disk-based backup software product that will backup any number of networked Windows computers to a central Data Repository on a hard drive.
		The Backup for Workgroups incremental backup is on a whole file basis: when the backup occurs and a changed file is detected, the entire file will be backed up again, creating a new revision of that file.
		Backup for Workgroups is designed to backup any networked Windows computer to a centralized Data Repository, which you can then back up with the existing backup solution currently in use at your company.
	backup-for-workgroups.com /active-directory-and-domain-controller-backup... (1024 words)

	Advanced Server con02.htm Adding, Renaming, Moving, and Removing Domain Computers
		Until the intended computer joins the domain, it is possible for a user to give a different computer that name and then have it join the domain using the computer account you have just created.
		When it is executed, the primary domain controller must be running in the domain that is to be joined so that joindomain can obtain the SID of that domain.
		If you are changing the name of a backup domain controller, make sure the new computer account has been added to the directory database before deleting the old computer account from the directory database.
	h30097.www3.hp.com /docs/asdu/HTML/CONCEPTS/DOCU0014.HTM (1440 words)

	Backup Domain Controller Fail To Replicate - Your source for domain data! (Site not responding. Last check: 2007-10-30)
		Domain Controller can accept updates and these updates are sent directly from the primary to the BDC Backup Domain...
		Domain Controllers (BDCs) in a domain replicate from the PDC...
		Primary Domain Controller or a Backup Domain Controller.
	www.fabdomain.net /index.html?k=backup-domain-controller-fail-to-replicate (1208 words)

	Windows NT4 Workgroup versus Domain (Site not responding. Last check: 2007-10-30)
		A "Backup Domain Controller" stores a copy of the User-Database, which is identical to the User-Database on the "Primary Domain Controller" (and if a change is made on the "Primary Domain Controller" by adding/deleting/modifying a user-information, the copies on the "Backup Domain Controller" are updated automatically).
		A "Backup Domain Controller" is entitled to handle security validations (checking Username and password for Logon and for accessing to Shared data), so the workload of security validations is distributed to multiple Domain Controllers.
		In addition, the "Backup Domain Controller" is the Backup: in case the "Primary Domain Controller" goes down, a "Backup Domain Controller" can be promoted to become (either temporary or permanent) the "Primary Domain Controller".
	www.windowsnetworking.com /pages/article_p.asp?id=156 (484 words)

	Data Center Design by PTS (Site not responding. Last check: 2007-10-30)
		A backup server that is powered up and ready to take over from a primary server should the primary fail.
		Used as part of flow control, it is a character transmitted to resume output from a sender.
		Used as part of flow control, it is a character transmitted to suspend output from the sender.
	www.ptsdcs.com /glossary.asp (6722 words)

	Cannot Demote a Backup Domain Controller to Member Server
		When you try to demote a backup domain controller to the role of a member server, the option for demotion is not available.
		NOTE: You must delete the backup domain controller from the domain before you reinstall Windows NT Server 4.0 to be able to convert the backup domain controller to a member server.
		Log on to another domain controller in the domain as a member of the Administrators or Domain Administrators group.
	support.microsoft.com /default.aspx?scid=kb;en-us;242070 (313 words)

	Advanced Server con02.htm Promoting and Demoting Domain Controllers
		In addition to the primary domain controller (PDC), you should have at least one backup domain controller (BDC) in every domain.
		When a backup domain controller is promoted to primary domain controller, an up-to-date copy of the domain’s directory database is replicated from the old PDC to the new one, and the old PDC is demoted to a BDC.
		If a BDC is promoted to PDC while the existing PDC is unavailable (for example, while it is being repaired), and if the former PDC later returns to service, you must demote the former PDC to BDC.
	h30097.www3.hp.com /docs/asdu/HTML/ASDU_CON/DOCU_013.HTM (232 words)

	Setting up a backup domain controller...
		I currently do not have a backup domain controller configured.
		controller using a Win2K SBS as the primary and a WIn2K3 as the backup or
		However, I understand that having a backup domain controller as a win2K3
	www.winserverhelp.com /post-4918.html (1200 words)

	Backup Domain Controller Windows 2000 (Site not responding. Last check: 2007-10-30)
		Acronym for Primary Domain Controller and backup domain controller (BDC) are...
		When you backup the System State on a 2000 registry is backup the System State.
		If there any and/or all domain is only one Windows 2000 domain controller in the domain,...
	709.uderwun.info (678 words)

	UPromote - promote your NT-Server into NT-Domain Controller
		A domain is a larger collection of computers where access to files and printers is controlled by the domain controller.
		If your Windows 2000 domain controller is running in pre-Windows 2000 compatibility mode ("mixed" mode), you can use UPromote to create an NT 4 DC that can join the Windows 2000 domain as a Backup Domain Controller.
		UPromote updates several additional registry keys which are essential in order to move a BDC from one domain to another safely and reliably.
	www.ebf.net /products/upromo/upromo.htm (1550 words)

	Samba HOWTO
		A Backup Domain Controller helps lighten the load on the Primary Domain Controller by handling authentication requests, and can also tremendously speed up network activities.
		In a multi-site environment connected by a medium capacity link (say, a 56K circuit), a Backup Domain Controller at the remote facility will speed up the logon process for people at that remote site, minimize WAN traffic, and provide a level of fault tolerance to the entire network.
		This lack of BDC support also meant that I would be unable to promote a BDC to a PDC, should the need arise.
	www.skippy.net /linux/2000/smb-howto.html (4673 words)

	Domain Controller (Site not responding. Last check: 2007-10-30)
		When Windows is unable to contact a domain controller during a users login a popup error message may be displayed, this message can be controlled by modifying this setting.
		Primary domain controller (PDC) and backup domain controller (BDC) are...
		Windows NT 4.0 Server operating system The initial installation of both a Primary Domain Controller (PDC) and a Backup Domain Controller (BDC) are based on the installation of a stand-alone NT...
	openadomain.com /resources/domain-controller.html (731 words)

	VMTN Discussion Forums: Creating Backup Domain Controller in ... (Site not responding. Last check: 2007-10-30)
		I find it odd that I can log on to the VM with domain credentials, yet the process (dcpromo) is unable to find the Domain when given domain credential.
		You might like to confirm your primary domain controllers have registered in DNS properly, and that the member server has also registered itself properly such that it can locate the domain service records.
		Add the server into the Domain, install DNS (don't configure), in Network Properties for your NIC point to the DC that is running for DNS, run DCPromo, and when prompted for DNS choose install and configure for AD Intergrated, (if you are running that).
	www.vmware.com /community/message.jspa?messageID=295053 (1261 words)

	Windows 2000 Domain Controller Backup
		It cannot backup a running Active Directory using the flat-file agent and there is no AD backup client yet.
		In this case, one of the DCs for a domain would be chosen based on which had the most recent backup copy of the system state information.
		In this case, the TSM Backups would be reviewed for the most recent available copy of the AD image.
	windows.stanford.edu /w2kinfrastructure/backups.html (629 words)

	Domain Controller / Backup Controller Question - Neowin.net
		Because of the downtime I realise that a backup is needed.
		I think you simply have to setup the AD on the 2000 server to be another domain controller in a excisting domain, specify the domain of the 2003 server computer, and follow through the AD wizzard
		My only concern with this is the fact that the 2003 Domain Controller now uses AD2.0 whereas Windows 2000 uses the old Active Directory.
	www.neowin.net /forum/index.php?showtopic=120278 (1016 words)

	E-Bitz - SBS MVP the Official Blog of the SBS "Diva" : Sam the SBS Server answers the question "Can I have a backup ... (Site not responding. Last check: 2007-10-30)
		We got a question via the mailbag today as to whether you could support a backup domain controller, there seems to be a bit of a misunderstanding about that, can you clarify that?
		I can INDEED support having a backup domain controller in my network and don't mind it in the least.
		P.S. Sam would also like to indicate that in the AD world “backup domain controller is technically not true..
	msmvps.com /bradley/archive/2005/01/18/33181.aspx (893 words)

	INFO: Installing on the BDC (Backup Domain Controller) (Site not responding. Last check: 2007-10-30)
		If UltraBac is installed on the Backup Domain Controller (BDC) before the Primary Domain Controller (PDC), then UltraBac's automatic granting of the "log on as a service" user-privilege may fail.
		This can happen if the logon as a service right was granted to that user in the BDC and when the service attempts to start, it may look at the PDC for the most up-to-date authentication.
		Since the BDC has the "Logon as a Service Privilege" but hasn't yet synchronized with the PDC, the PDC thinks that the user doesn't have the privilege, so authentication fails.
	www.ultrabac.com /kb6/htm/UBQ000010.htm (394 words)

	Windows 2000: Installing backup domain controller in win 2k
		Had a few problems recently with server downtime, so considering adding a backup domain controller to a win2k network.
		In Windows 2000 there is no such thing as a backup domain controller.
		If you want to add a 2nd domain controller so that staff will continue to be able to login in case ther first domain controller is down, then here's what you need to do:
	www.experts-exchange.com /Operating_Systems/Win2000/Q_21150697.html (399 words)

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