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Topic: Primary Domain Controller

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In the News (Sat 15 Dec 18)

  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   (459 words)

 Primary Domain Controller - Wikipedia, the free encyclopedia
A domain is a concept used in NT server operating systems whereby a user may be granted access to a number of computer resources with the use of a single username and password combination.
Instead, the domain controllers in these domains are all considered to be equal in that all controllers have full access to the accounts databases stored on their machines.
The PDC emulator master acts in place of the Primary Domain Controller if there are Windows NT 4.0 domain controllers (BDCs) remaining within the domain, acting as a source for them to replicate from.
en.wikipedia.org /wiki/Primary_Domain_Controller   (491 words)

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   (Site not responding. Last check: 2007-10-21)
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)

 Compaq Advanced Server for OpenVMS   (Site not responding. Last check: 2007-10-21)
Because PDCs and BDCs keep their own copies of the database, and because the PDC and all BDCs can validate logon requests, there is no single point of failure in the domain.
Each domain in a network is identified internally by a security identifier (SID), a unique number associated with the domain.
Normally, the domain security databases are synchronized automatically at regular intervals: the primary domain controller (PDC) replicates its databases to the backup domain controllers (BDCs).
www.cuis.edu /doc_vms_html/000000/731final/6543/6543pro_002.html   (3208 words)

 Upgrading a Backup Domain Controller
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.
This password must be the same as the password for the administrative account on the primary domain controller.
docs.hp.com /en/J2716-90046/ch03s02.html   (1047 words)

 AFP548.com: Articles: Mac OS X Server Samba Primary Domain Controller Configuration
This document is based on the guidelines available from ‘The Samba 2.2 PDC HowTo’ by David Bannon and other resources available from samba.org.
The next step is to edit the smb.conf to reflect the changes needed to configure samba as a domain controller.
It enables nmbd to process requests which are used by Win9x clients to log into the domain and by clients to find a domain controller.
www.afp548.com /Articles/system/sambapdc.html   (1831 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 backup 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   (224 words)

 Installing a Primary Domain Controller
The primary domain controller must be the first Advanced Server/9000 or Windows NT server that is installed in a domain.
If you configure a server as a primary domain controller in a domain that already exists, the result will be two domains with the same name, neither of which will operate properly.
During the installation of a primary domain controller, you are prompted for the server name, server role, domain name, and administrative account password.
docs.hp.com /en/J2716-90046/ch01s06.html   (793 words)

 What is PDC? - A Word Definition From the Webopedia Computer Dictionary
Short for Primary Domain Controller, a server in a Windows NT network that maintains a read-write directory of user accounts and security information.
It is also a good idea to have at least one backup domain controller (BDC) in a domain.
Unlike Windows NT, where a PDC must be accessible to make changes to the directory, W2K relies on Active Directory's multimaster replication model to update all domain controllers when only one is updated.
www.webopedia.com /term/p/pdc.html   (185 words)

 [Chapter 1] 1.4 Microsoft Implementations
The protocol that Windows domain controllers use to communicate with their clients and other domain controllers is proprietary and has not been released by Microsoft.
The domain controller is the nerve center of a Windows domain, much like an NIS server is the nerve center of the Unix network information service.
The domain controller then forms a central repository of passwords that are tied to usernames (one password per user), which is more efficient than each client machine maintaining hundreds of passwords for every network resource available.
www.oreilly.com /catalog/samba/chapter/book/ch01_04.html   (2738 words)

 Domain Time version 1.x Documentation
Domain Time is a multithreaded NT service that keeps each machine clock in synch with the correct time.
Domain Time Trigger (dttrigger.exe) now allows command-line parameters so you can force a sync of the entire domain, a specific domain in a multi-domain environment, or an individual machine.
Domain Time Client runs on demand (just double-click the program), or it can be installed to run every time a user logs on, or, as of version 1.1.b.19990205, can be installed to run as a Win95/Win98 service.
www.greyware.com /software/domaintime/technical/dt1x.asp   (3464 words)

 openshare™ 2
The groups and users of other domains are identified by their current names to which the domain name they belong to is added.
Please note that if openshare is installed in a domain that has a unidirectional trust relationship with another domain (trusted domain), it is not possible to manage individual permissions associated with folders and documents for users belonging to the trusted domain.
If openshare is installed on a Domain Member and users access the system as local users, and not as domain users, then they must provide their server name in addition to their user names.
www.wheaton.il.us /wfdocs/eng/help/AG_4.htm   (1027 words)

 [Chapter 6] 6.5 Windows Domains
In order to log on to the domain, a valid username and password must be presented at startup, which is then authenticated against the primary domain controller's password database.
Samba is the only primary domain controller for the current workgroup.
Then, type in the domain that you wish the client to login to; it should be the same as the workgroup that you specified in the Samba configuration file.
www.oreilly.com /catalog/samba/chapter/book/ch06_05.html   (2139 words)

 Samba NT Domain Controller
One of the primary benefits is having a centralized password database on the Primary Domain Controller.
As you can see, configuring samba as a domain controller and domain member is a fairly easy job.
The flip side is that since samba is the result of major amounts of hacking and reverse engineering, it doesn’t have all the functionality of a proper domain controller.
www.freeos.com /articles/3842   (749 words)

 WinDrivers Computer Tech Support Forums - Primary Domain Controller Question...   (Site not responding. Last check: 2007-10-21)
They are "domain controllers", but they emulate some functions and have some roles (look for FSMO roles).
I'd recommend at least 2 domain controllers though, you don't want users to be unable to logon because *that* server has decided to go down...
The "new" Domain Controller is also listed as the RID, PDC, and Infrastructure Master on all of the Domain Controllers (including the "old" one); it's only screwy in the above described snap-in/area.
forums.windrivers.com /showthread.php?t=77081   (550 words)

 UPromote - Promote your NT Server to a Domain Controller
A domain controller puts all of your passwords in a central database.
A domain is a larger collection of computers where access to files and printers is controlled by the domain controller.
The result is indistinguishable from a domain controller created using the Microsoft setup procedure.
utools.com /UPromote.asp   (624 words)

 Build A Primary Domain Controller With Samba
Microsoft's concept of a Primary Domain Controller is most useful, as it simplifies a number of network administration chores.
User's profiles are stored on the PDC; the PDC handles all authentication requests, allowing users to access different services in the domain without needing multiple authentications.
Minimize risk, control costs, and protect vital information with EMC's software archiving platform.
www.enterprisenetworkingplanet.com /netos/article.php/1144701   (1278 words)

 domain -- display Windows NT/2000/XP/2003 domain information
When you do not specify any domain arguments, this option displays the name of the domain controller for the local machine.
When no domain arguments are specified, this option displays the host names of the backup domain controllers for the local machine.
When you do not specify any domain arguments, this option displays the host name of the primary domain controller for the domain that contains the local machine.
www.mkssoftware.com /docs/man1/domain.1.asp   (361 words)

 How to Configure Samba 2.2.x as a Primary Domain Controller
This document is a combination of David Bannon's Samba 2.2 PDC HOWTO and the Samba NT Domain FAQ.
Domain Controllers prior to Windows NT Server 3.1 were sold by various companies and based on private extensions to the LAN Manager 2.1 protocol.
In a domain environment, Microsoft Windows NT domain controllers participate in replication of the SAM and SECURITY files so that all controllers within the domain have an exactly identical copy of each.
www.comms.scitech.susx.ac.uk /fft/howto/Samba2.2/Samba-PDC-HOWTO.html   (3634 words)

 Behind The Scenes With Active Directory, Part 1
If you brought additional domain controllers online within the domain, they would receive a copy or replica of the information held by the primary domain controller.
The primary domain controller would alert the backup domain controllers of the change, and they would request the update when they had time to do so.
However, when a domain controller receives a login request, it checks with a global catalog server for the user’s global group information.
www.brienposey.com /kb/behind_the_scenes_with_ad_1.asp   (1047 words)

 PDC - Waikato Linux Users Group
Acronym for Primary Domain Controller 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.
The primary domain controller periodically sends copies of the database to the backup domain controllers - this is known as replication.
Windows 2000 and XP server have done away with the concepts of primary and secondary domain controllers and now a server is either a Domain Controller, or not!
www.wlug.org.nz /PDC   (313 words)

 Netlogon Event ID 5770 and 5722 on Primary Domain Controller
LanMan BDCs are declared as such in a Windows NT domain by creating a special Windows NT global group called servers, creating user accounts that correspond to the computer names of the LanMan BDCs, and placing those user accounts in the servers group.
Authentication with the PDC fails when the accounts in the servers group are actually Windows NT workstations and servers.
During challenge/response authentication, the PDC uses the user account password instead of the secure channel password to authenticate the Windows NT system.
support.microsoft.com /?id=180114   (437 words)

 Implementing CIFS: Glossary
A Windows NT Domain Controller (DC) which keeps a backup copy of the user/group authentication database in an NT Domain.
A Domain Controller (DC) maintains a database of user, group, and machine accounts and other security information, and provides authentication services to the NT or W2K Domain.
The distinction between an NT Domain and a Workgroup is blurry.
ubiqx.org /cifs/Glossary.html   (1865 words)

 kbAlertz: An Active Directory domain controller that holds the primary domain controller (PDC) operations master role ...
An Active Directory domain controller that holds the primary domain controller (PDC) operations master role (also known as the flexible single master operations role or the FSMO role) runs a thread every hour to check the access control lists (ACLs) on the following groups and all of the member objects of these groups:
If a user account is a member of one of these administrative groups because of its membership with a distribution group, the user account's ACL is checked when the thread is run and may be reset to match the ACL of the AdminSDHolder thread.
For example, if UserA is a member of Distribution GroupA and Distribution GroupA is a member of the Domain Admins group, UserA is not a member of the Domain Admins group if the user is logged on to the computer.
www.kbalertz.com /kb_Q318180.aspx   (678 words)

 VMTN Discussion Forums: GSX Server 3 and Primary Domain ...   (Site not responding. Last check: 2007-10-21)
Installing GSX on a Domain Controller is not a supported configuration.
The recommended work around is to remove the Domain Controller from your host and install it into a virtual machine.
That is a way to do it, and it will resolve some problems, but it would mean installing another server using memory and CPU in most of my testcases.
www.vmware.com /community/thread.jspa?threadID=3083   (651 words)

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