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 can I stop Active Directory from syncing time with the client

We have several Windows 8 machines that seem to have a problem with their local DateTime. I want them to stop syncing their time with the domain controller. How do I do this? Some Background ...
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1answer
149 views

Active Directory Country capitals (letters)

Does someone know how to solve the problem of changing all country fields at once and probably why the country field is multiplied each time I select + apply a country change until the Object is being ...
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142 views

DNS server IP address of redudant domain controller

I have two redudant Windows Server 2012R2 domain controller. The DNS is active directory integrated. Which order of dns ip address should the two domain controller have and why? Are there experience ...
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4answers
2k views

How can I verify successful replication of two domain controllers

I have in my environment two redundant Windows Server 2012R2 domain controller. How can I verify successful replication of two domain controllers? On the domain controller are roles installed like AD ...
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126 views

Are (PRIMARY, SECONDARY / PRIMARY, BACKUP) Domain Controller already exist? [closed]

i know that since Windows 2000 was introduced there are no such things anymore like "primary" and "secondary" domain controllers. But if I run in the CMD on my redundant Domain Controllers ...
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2answers
94 views

Windows Server 2008R2 DNS Server forwards second request that includes local domain name

I recently found out that the DNS server in my Windows network (Windows Server 2008 R2 also DC) forwards two requests to the external DNS servers. If I enter a command like: nslookup google.com ...
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86 views

Domain Controller reboot disrupts Web Servers

We have 3 DCs in our environment running AD, DNS and DHCP on a Win2k8 R2 OS. We reboot our servers monthly on different days to apply security patches. During the reboots we would get some complaints ...
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1k views

If my single domain controller is down, what happens? [closed]

I have comprehension question. Let us assume I have an ESXi environment about 20 running VMs. One of the 20VMs is the domain controller (DC01) as a single domain controller (no other sides are ...
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1answer
1k views

Swapping IP addresses between two domain controllers

On our VMWare ESXi environment is a single domain controller (Windows Server 2008R2) installed. Now I have to upgrade it to a new server (Windows Server 2012R2) which should has the same IP. Many ...
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354 views

What's the downtime limit of a domain controller (DC)?

On my VMware ESXi environment there are 10 VMs running. One of the VMs is the domain controller (Windows Server 2008 R2). The other VMs are configured with a static DHCP and DNS IP address in their ...
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109 views

My first Domain Controller upgrade (2008R2 to redudant 2012), please help me, i need some tips

At the moment on our ESXi Server are 10 VMs running. One of the VM is the Domain Controller (Windows Server 2008 R2). On this Domain Controller are role like AD, DNS, DHCP and Wins installed. The hole ...
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1answer
79 views

Is this USN Rollback?

I have 6 Windows 2008 R2 Domain Controllers, all GCs, across multiple locations (2+2+2). On my main site I have a clone of one of our DCs done a few month ago, usually totally isolated from the ...
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132 views

Repair .NET 3.5 Framework - Domain Controller

Server manager says that .NET Framework 3.5 is installed. When I try to install an application that needs .NET Framework 3.5 can't be installed because they are saying that it's not available. Is it ...
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97 views

What can a domain controller do? [duplicate]

In short: I do not know where to start reading so that I can understand how to configure a DC. The long question: In the environment I work, we use an outdated domain controller and I have to create ...
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2answers
462 views

2k3 to 2k12 AD, DC and DNS Migration

First off this is a Windows Server 2003 to 2012 DC/DNS/AD migration. We do have a backup 2003 DC/DNS/AD server as well, but I don't think that is a concern at the moment but can be used if needed. I ...
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2answers
212 views

What precautions should I take before demoting domain controllers?

I know how to demote a domain controller (done it before) but I need to do it for two physical old DCs on a much more 'important' and strictly controlled domain than that which I previously did it ...
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1answer
212 views

How to find ip address of computer connected to domain controller (on login)

Every time the user login to domain i need to run script and send his computer ip to my linux mashine. I already have sending script but i need to pass ip as parameter. Is it possible to get this ip ...
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1answer
37 views

Is it possible to have multiple domain policy for different servers? [closed]

In my organization, there is 1 domain with 13 production servers joined to it. Recently, we realized that the default domain policy that is applied to the production servers have minimal security ...
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2answers
951 views

Apache2 authentication NTLM without prompted semi Basic auth type

I succesfully configured ntlm authentication. Unfortunately config allows semi basic authorization. For example when I'm using tortoise svn1.8.4(with serf access lib), chrome or IE web browsers, they ...
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191 views

Secondary domain controller not converting to primary Server 2012

I was running my AD DS and DNS on an evaluation copy of Windows (let's call it old server). It was getting restarted after every 1 hour. So I installed a new machine with licensed version and created ...
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1answer
94 views

assign an OU to a certain RODC

I have a RWDC(A) and two RODC(B and C).i create an OU for each branch in RWDC however the OU and it's content will be replicated to all DCs within the domain. So I want to know can we assign an OU to ...
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2answers
170 views

How to recover a Domain Controller after disabling and reenabling File and Printer Sharing?

In an attempt to improve the security of my Windows Server 2008 R2 with Exchange 2010 SP3, I decided to test if File and Printer Sharing was really important to allow Exchange to work (thats all I ...
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1answer
950 views

Join Windows 2003 R2 guest to Windows 2012 R2 domain controller

I'm trying to join a Windows Server 2003 R2 guest to a domain with a Windows Server 2012 R2 Domain controller server. I get the error "The following error occured attempting to join the domain ...
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Is it best practices to have separate login for a domain for domain admins?

I typically like to set up separate logins for myself, one with regular user permissions, and a separate one for administrative tasks. For example, if the domain was XXXX, I'd set up a XXXX\bpeikes ...
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Can a Server Foundation 2012 machine serve as a backup domain controller to a machine running Server Foundation 2008?

In this particular context we have a small business (10 user office) looking to establish a Domain setup. There is already one machine running Server Foundation 2008. If that machine is selected as ...
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Veeam backup of Domain Controllers

Is it safe to backup and/or replicate a Domain Controller (Win2003 & Win2008) using Veeam Replication & Backup 7? I am aware of the Application Aware option in Veeam. We can enable, but I ...
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47 views

We're migrating everything to the cloud - is there a reason to keep Active Directory around? [duplicate]

We are "cloud-sourcing" all our services (web, databases, file storage, e-mail, print, DNS). As authentication is made on the could-provider side, I'm wondering about the pro and cons to keep our ...
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Why does second domain controller not display [closed]

We have 2 domain controllers DC1 and DC2, both sharing the same AD database The "Active directory users and computer" console of both DC1 and DC2 display DC1 only, under "Domain Controllers". what ...
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3answers
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When should you create additional domain in forest?

My company is opening a new site in a different country. We will be installing new servers there and I have a question I can't decide on. Should we create a new domain in the forest or should we just ...
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2answers
735 views

Windows Clients connecting to DC in wrong site?

Ok so Sites are separated by WAN Domain : production.contoso.local SITE A Site network: 192.168.0.0/16 Site DCs : DC1-SiteA, DC2-SiteA Client : serverA ...
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2answers
303 views

Windows Domain controller ARPing for 169.254.0.0/16 addresses

I've been doing some sniffing on my company's network to try to clean up some of traffic and have noticed that one of our Server 2008 Domain Controllers is sending out ARP's every second or two to ...
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Why gpupdate fails?

So I have a Windows Active Directory Domain with two domain controllers, DC1 and DC2, both running Windows Server 2008 R2. DC1 is the primary DC holding all FSMO roles. It was functioning all right as ...
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197 views

Connect two different domain servers to transfer data

Planning an upgrade from 2003 (Small Business Server) to 2012, question is how to transfer the data. Can I connect these two servers together by connecting by IP number and using simple file sharing ...
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371 views

Mysterious kinit-failure on Debian Jessie

I have a machine with the Samba 4 AD and the second as a client. After two days of good operation, suddenly the kinit stopped working on the client-side. The reason is quite mysterious. It cannot ...
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189 views

Why is the secondary interface address on our AD DCs in our domain's primary DNS zone?

We have 2 hardware interfaces on our Active Directory Domain Controllers. The secondary interface should never be listed in our domain's DNS zone, but it is. This is problematic because most machines ...
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3answers
491 views

Group Policy not replicating - Server 2012

I have 2 DCs. Both are Server 2012. For some reason Group Policy does not replicate between them and the client keeps getting : The processing of Group Policy failed. Windows attempted to read the ...
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1answer
32 views

Moving user accounts from server to local

My company has a Windows server that we mainly use for file sharing. When the company was larger its main purpose was to be a domain server for logins. We sold a large portion of the company, and I ...
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Is a gradual migration from a workgroup to a domain possible?

I have a small setup of around ~30 computers [some of which are located at a remote office] that I need to get migrated over from a workgroup to a domain to maintain my sanity. The previous admin ...
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2answers
210 views

BGInfo and WMI Filter

I have applied a Logon script via GPO to run BGInfo. As I understand it, as I am setting a User Configuration the GPO must be applied to a User OU. We have an OU called SERVERS which is the only OU we ...
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408 views

GSSAPI Error: Server not found in Kerberos database

I'm unable to make working a simple configuration written in Samba Wiki. NSLCD worked fine, when authentized by name and password. But I have no idea, what can I do wrong when following that simple ...
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2answers
2k views

How can I change dns name on domain controller?

I am in the process of trying to clean up after a domain rename gone bad. The rename was from xxx.com to hq.xxx.com My current problem is that I cannot login to the DC (only DC on network) Logging ...
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1answer
190 views

Using Azure with Server 2012 Essentials for Remote Domain Joining [closed]

We are using Windows Azure and instead of having an on-premises domain controller they want to have the VM in the cloud act as the Active Directory DC. I am using Windows Server 2012 R2 Datacenter ...
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31 views

Virtualizing On a Domain Controller Server

Im Installing a new physical Domain Controller Server 2012, But I want to know if its recommended to virtulize other servers on this Domain Controller Server. Thank you
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2answers
486 views

File Replication not working

Could somebody please help me identify an issue I suddenly started having with Replication between 2 of our DCs. I inherited this system which was working perfectly fine but the problem happened ...
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108 views

What happens when one of the 2 DC's goes down

There are 2 Domain Controllers running Windows Server 2003 x64 R2. The installed roles of DC1 (10.0.0.1) are: File Server, Print Server, Application Server, DNS Server and of course Active Directory. ...
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1answer
102 views

Active Directory Site/Domain Interactions

I'm having an issue wrapping my head around the myriad Active Directory components, and I'm hoping I can get some opinions or corrections from someone. At our workplace, we used to have individual ...
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69 views

Domain Controller Not Found with Two DNS Address

I'm experiencing a problem on some windows clients connecting a Domain Controller. The domain controller is 192.168.10.240 and the client have the following DNS configuration : DNS 1 : ...
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4answers
627 views

Hyper-V 2012 Cluster with only one DC

What happens with a Hyper-V 2012 Cluster with only one DC, if the DC suddenly goes down? Would the Hyper-V Cluster works after a reboot, if the DC is missing? Or should we have two DCs?
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Shared resource permission management (minimum required permission)

I want to grant a "tech" group access for managing the shared resources. Problem: The sharing tab is not shown to them. Moreover they can not even access the shared folder list via management ...
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2answers
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How do we recover from a AD Domain that is now not responding as a DC at all?

Windows Server 2012 is the primary server environment. All machines are located in a server room that services a network testing lab. There are over 400 servers in the lab, most of which are ...