A domain controller is a server in a Microsoft Active Directory or NT4 domain that is responsible for central authentication.

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How to create new domain w/ Hyper-V 2012 hosting the DC server?

I have a small business client that's being spun off to run independently from a larger organization. They want to start from scratch and will be on their own premises. I'll be setting up a new 2012 ...
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1answer
122 views

What does “DEL:” mean in the DistinguishedName of an AD Object?

Sorry -- I'm not really a Windows System Admin, just trying to slam through some LDAP interactions in Java. I'm finding a ton of objects with "DEL:" in the distinguishedName. Are these orphaned ...
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174 views

SQL Server reliance on Domain Controller

Just have had an interesting situation with a remote database server which I did not think happened. The setup is server A is a domain controller in the main network, and server B is on a remote ...
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2answers
1k views

How to test DNS Forwarders without disconnecting the Primary DNS Server?

I have two domain controllers in my domain in remote offices (Europe and China) and two domain controllers in the US, 4 in total. We had a network outage in our US office a few weeks back and during ...
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77 views

Domain Controller Forgetting/Disregarding User is administrator

I am part of the administrator group on our domain but I have issues upgrading/installing software on my own account. I either have to get another administrator account to login and do it or shift + ...
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2answers
75 views

DNS Service not running on a Sandboxed and alienated single Domain controller

we were trying to created a sandboxed test environment; so we promoted a member server to a domain controller and then shut it down moved it to a sandboxed netwrok and cleaned up metadata. Everything ...
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3answers
1k views

Number of Domain Controllers needed?

In the process of migrating 7 school site network from Server 2003/XP to Server 2012/7 and wanted to get some feedback on how many domain controllers would be optimal. Currently we have 4 DCs. All 7 ...
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3answers
1k views

Adding a windows server 2012 domain controller to an existing windows server 2003 domain fails

I want to add an additional domain controller to our existing domain. Right now we have only have one domain controller running on Windows Server 2003. I tried to promote a Windows Server 2012 to be ...
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2answers
1k views

What are all the possible causes of the “An Active Directory Domain Controller (AD DC) for the domain …” error message?

Earlier I was having issues connecting one of my workstations (client) to my domain, and I thought it was because the domain was not in my possession yet (reference: this question). But, due to the ...
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1answer
95 views

Do I have to own my domain before attempting to connect to my domain controller?

I am in the process of purchasing a domain, but I do not own it yet. I setup my domain controller as internal.domain.com. The problem I'm running into is in connecting my workstations to my domain. ...
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3answers
244 views

Connect to internet through DC with 2 network interfaces

I have a network like this : Client 1 <== Wireless ==> Access Point <== Wire ==> DC <== Wireless ==> ADSL Modem Client 1 : IP : 192.168.1.181 DG : 192.168.1.100 DNS : ...
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144 views

Linux workstation and Active Directory authentication

I read a few articles regarding "How to Authenticate Linux Clients with Microsoft Active Directory" My question before I do it: what will happen to Notebooks that try to login when the Active ...
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379 views

Install Forefront Threat Management Gateway on Domain controller

I have a problem on installing Forefront Threat Management Gateway on Domain Controller. After googling about this, I found that only TMG SP1 can be installed on a DC, but I do not have Forefront SP1. ...
6
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1answer
86 views

repetitive errors on user machines - DC migration from a windows XP based to a windows 7 based network

I'm replacing all the old windows XP machines in my network to new machines running windows 7. I hoped it would be an easy task, but apparently it isn't: all the machines I've installed (using WDS) ...
2
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1answer
3k views

How do I solve LDIFDE errors on “last token starts with 'C'” and “change-modify entry is missing the terminator '-'” when..?

How do I solve LDIFDE errors on "last token starts with 'C'" and "change-modify entry is missing the terminator '-'" when trying to pair existing users to exiting security groups (domain migration)? ...
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1answer
376 views

Server 2012 AD-DS Setup Fails (Microsoft.Directory.Services.Deployment.DeepTasks.DeepTasks not found)

Good Morning everyone, I am currently trying to promote my 2012 Server to a Domain Controller but when I am at the first step in the setup I get the Error Message (German, Original Message): ...
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1answer
197 views

DCPromo Before or After?

I have an older Windows 2003 Server that is doing moderate duty right now -- small SQL database and an LOB application. I plan to: Make it a DC. Install DHCP/DNS/WINS as backup for the FSMO ...
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1answer
909 views

Cannot ping my domain-joined server - Can only ping domain controller - host unreachable

I have a HyperV Server hosting a Domain Controller VM (192.168.1.50) and another VM (192.168.1.51) joined to this domain. I have: domain controller as DNS server forward lookup zone for the domain ...
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1answer
320 views

Cannot leave domain - specified domain does not exist or cannot be contacted

I have a Windows Server instance joined to a domain. I need to join it to a Workgroup temporarily but when I try to leave the domain it gives me the below error "The specified domain either does not ...
2
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1answer
51 views

Microsoft Online Directory Sync is using sub-optimal Domain Controllers

When we make changes and need to force an immediate synchronization, some significant annoyances have hindered us. The primary problem is that our DirSync server is pulling directory information from ...
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1answer
1k views

w2k3 AD DC Demotion fails with “no other AD DC for that domain can be contacted”

i've a small office with a single w2k3 sp2 DC(bad idea, but it is real), now, i want to make a clean install of that pc, so, i got another one, install w2k3 sp2, add it to the domain, dcpromo and set ...
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1answer
59 views

Domain Controller User

I want to create an user of our domain controller (Windows Server 2008) so that he can create and delete any domain users other that those granted administrator rights, how to do that?
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Lots of Failure Alerts on my DC

I am receiving lots of Failure Audit logs on my DC, can you guide me - how should i identify the culprit. Please see the below print-screen for more detail. The logon type is 3, that means it is a ...
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NERR_DCNotFound when attempting to join Windows Server 2010 domain using PBIS

I have a RHEL 6.3 Amazon Web Service instance I'm trying to join to a Windows Server 2012 AD domain through PowerBroker Identity Services Open (ie: not enterprise). The Server 2012 instance is in the ...
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1answer
591 views

Linux Client Active Directory Authentication stops working when failover

I have an issue with Linux clients trying to AD authentication by targeting a DNS name (corp.example.com). I have 2 Domain Controller servers DC1(10.0.0.3/24), DC2(10.1.0.3/24) both domain controllers ...
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1answer
305 views

DC/DNS failover with global/common DNS roundrobin

I think I am getting lost in network failover land. I am trying to set up a Windows Domain Controller and DNS, while providing resilients and failover. I have two Domain Controllers and DNS servers. ...
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1answer
33 views

windows server 2000

I have setup a secondary domain controller with server 2000 and would like to find out ways to confirm the functionality.I don't have ant error in the log but is there a way to understand if it is ...
0
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1answer
71 views

caches domain user on local PC

We have a fully working domain in UK and around the world we have user who use VPN ( checkpoint) to connect to or domain. One of the user in USA has a laptop which he never logged on to before ( it ...
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474 views

How to Migrate PDC AD Samba4 to PDC AD Samba4

I have a server with CentOS and Samba4 working as a DC. I need migrate all configuration to a new server original server CentOS 5.8 with Samba Version 4.0.0alpha14 new server Ubuntu 12.04 with Samba ...
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3answers
151 views

Can I log into a Domain account without pointing DNS to the domain controller? [closed]

My situation is as follows: I have a Windows 2003 Domain Controller which is also my DNS server. I have 10 Windows XP Pro PC's which all login to domain accounts. I am about the forward my DNS ...
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0answers
2k views

Windows Server 2008 R2 DC can't ping to other computers except other DC

I have been trying to troubleshoot this problem since 20 hours ago, and still can't find a solution. I brought down (orderly shutdown) a Domain Controller yesterday. No problem at all connecting to ...
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1answer
479 views

Win 2012 Domain controller VM, should the Hyper-V host be part of the domain?

I have a Hyper-V 2012 host running a Win 2012 ADS domain controller. Question is should I make the hyper-v Host partition part of the domain? Problems occur as the VM Host boots because the domain ...
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1answer
980 views

dns in a small network with router and AD domain

I have a small office network with router (running OpenWRT), Windows Domain Controller (used to be 2008R2; I just backed it up and upgraded to 2012), about a dozen AD clients (3 server and windows ...
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2answers
234 views

Block Domain User login

I have created a Domain User id ( for example - Auser ). I have integrated my LDAP login with Firewall. I use this user to login in to firewall only. So, I want to block all the login for this User ...
2
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1answer
427 views

How do I install Skype on computer so that anyone who logs in does NOT have to go through the initial config?

I installed Skype when logged on to the (local) admin account. Now, when I log off that, and log on as myname on the domain, I have to click through the intial setup steps (after you've already run ...
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1answer
52 views

How long are rights preserved if the domain controller goes down

I have a network with one domain controller and 2 NAS-servers (running on a built-in Linux OS). Permissions to the files on the NAS servers are handled through AD rights. I want to bring the DC down ...
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1answer
2k views

How do I configure a single Windows Server 2012 as Remote Desktop Services installation

we (a small 5 employee company) ordered a hosted server to use it as a use-from-everywhere database frontend. Our database basically is a SQL Server 2008 with an MS Access frontend, which I intend to ...
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1answer
413 views

DNS Configurations for Microsoft VDI on Hyper-V Server 2012

I'm trying to set up VDI using Hyper-V Server 2012. I have 2 physical machines, one Windows 8 client for remote management and another machine running a fresh copy of Hyper-V Server 2012. I'll be ...
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1answer
59 views

Tried creating Active directory domain, upon restarting not able to login back to server [closed]

I saw a video on youtube to create active directory domain on my server. I followed same steps and created group policy as shown in video. I do only have password that I entered while setting up ...
2
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1answer
68 views

Restored Domain Controller does not display any information using dcdiag command

I am testing restoring a domain controller from system state backup to different hardware in a non production environment as a sanity check for our restoration procedure. When i run the dcdiag ...
0
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2answers
632 views

Moving a Domain Controller VM from one server to another

I have a Hyper-V Virtual Machine that is a Domain Controller, specifically it is our main DC and holds all 5 FSMO roles. If I wanted to move this Virtual Machine to another VM Server than the one it ...
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1answer
363 views

Windows 7 PC refuses to join domain [closed]

So, we're wiping clean all PCs at our office and migrating them to a new server cluster and a new domain. Last night I tested on PC and it mostly worked except it refuses to join to the domain. Now, ...
3
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3answers
907 views

How do I make on Domain Controller be used more to logon than another Domain controller on the same network?

I am currently working in an environment where there are 2 DC's running and another DC that is a backup but is currently running as well so that if the other 2 fail, the backup has everything needed ...
2
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1answer
744 views

RDP add domain users broken

I have 3 Windows Server 2008 R2 instances, all of which are virtual machines hosted on a single VMware ESX server: Domain controller with DNS services DHCP/RRAS File server All three servers are ...
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2answers
274 views

Rebuilding Hyper V after crash

I am currently having an issue with our Domain Controller network environment which is on Hyper V. Basically the machine that was hosting the Hyper V has crashed. The problem is not with hard drive ...
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1answer
4k views

Revocation status of DC can't be verified

A Domain Controller within my forest was working fine (as the story usually goes). Then, suddenly, I can't logon with my smart card. Instead, I'm greeted with the following message: The system ...
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2answers
930 views

How can I hide a Virtual Machine in the Hyper-V Manager, so that only administrators can see it?

I have a domain controller that is a virtual machine, last week a user logged on to it and shut it down accidentally. I need to prevent this from happening so I would like to hide this VM in Hyper-V ...
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1answer
289 views

Need an Active Directory server to use stand alone DNS

I have the need to add 2 AD servers to our domain but at each of these particular sites would like DNS to be stand alone (not AD integrated). I can't say I have every tried this before as I have ...
0
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1answer
348 views

Setup a new domain controller over a temporary VPN, but now Windows delays startup?

I'm migrating servers from colo locations to Amazon's VPC EC2 instances. If anyone hasn't worked with Amazon VPC before, VPN is a pain in the arse! Anyways, I setup a new server that acts as the ...
2
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2answers
377 views

Why do clients on Branch Sites insist on accessing SYSVOL on the HQ DC instead of the branches' RODC?

I'm still scratching my head over this situation... You see, we have 3 RW DCs in the HQ, and 1 RODC on every branch sites (50+ locations). During startup, a script will pull in some files from ...