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

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changed public ip address of domain controller now other servers cannot find dc [on hold]

I have 3 virtual machines. I had to move them to another dedicated server since the company I was using is having so many issue. The new dedicated server, of course, has new ip addresses. They are ...
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1answer
28 views

windows server 2012: delete remembered domain [on hold]

I recently start experimenting with windows server 2012 and have a question about Domain controllers and creating a domain. I've tried creating a Domain Controller and a domain, then deleted the ...
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0answers
34 views

windows server 2008 DC issues after virtualizing [on hold]

Our company recently moved our server acting as Domain Controller and running IIS to a VMware server. For the most part, this has been fine. But . . . Several computers are now having issues ...
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1answer
26 views

Windows Server 2008R2 Domain Controllers - Failed test VerifyReferences

While running DCDIAG on our Windows Server 2008R2 Enterprise Domain Controllers, I discovered the following error message on both DCs. These domain controllers where migrated from a Windows server ...
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1answer
26 views

Does Local Server Admin Become Domain Admin When New Domain Is Created?

Does the local server administrator become a domain administrator when new a domain is created on that server? This question relates to a 2008 server. Whenever I login through Logmein I am logging ...
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2answers
68 views

How to Prevent Server 2012 Essentials from Shutting Down Due to Not Being FSMO [closed]

Apparently, Server 2012 Essentials doesn't like the fact that I have joined it to a domain where I do not want it to be a domain controller, and due to this fact it is shutting down automatically ...
2
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0answers
46 views

Windows server 2012R2 as additional domain controller along with Server 2008R2 fails

On running ADPrep passes all prerequisite, but fails in the last stage with the below error: ADPrep execution failed --> System.ComponentModel.Win32Exception (0x80004005): A device attached to ...
3
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1answer
27 views

Synchronizing RODCs to NTP servers?

I've read this nice article from Gareth Hooper regarding Domain Controller syncing to external time sources. In essence, he wrote that although Microsoft don't actually condone the practice, it's a ...
8
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2answers
242 views

Demoted domain controller still authenticating users

Why is a demoted domain controller still authenticating users? Whenever users log onto workstations with domain accounts, this demoted DC authenticates them. Its security log shows their logons, ...
0
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1answer
44 views

Joining an AD domain from Workgroup with runas

I've got an user A who is connected to a Workgroup. From this Workgroup, now, I want to connect, with the console, to the user "john" who belongs to an active directory (MYAD) Though I try : runas ...
0
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1answer
49 views

Best practice to migrate Server 2003 x64 to Server 2008 x64

We have 2 Domain Controllers running Windows Server 2003 R2 x64. DC1 has the FSMO roles and DC2 acts as a 'secondary' DC. Both are Global Catalog servers. DC1 has these roles installed: Domain ...
0
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1answer
81 views

Set-AzureStaticVNetIP allocated IP address not persisting over VM de-allocation

I am experimenting with the Set-AzureStaticVNetIP powershell command to allocate a static IP address to VMs. I can get the command to work and allocate an IP address correctly to a VM, either on ...
3
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3answers
125 views

How To Properly Setup DNS Forwarders On Windows Server

I was wondering how to properly setup DNS forwarders on Windows Server 2008 R2. I have three Domain Controllers. Each of the DC's have have following: AD Role DNS Role DHCP Role Static IP Address ...
2
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1answer
43 views

DHCP Warning Sign Icon On Windows Server

I have a Windows Server 2008 R2 SP1 Domain Controller. I have the roles AD, DHCP, and DNS installed on this server. I noticed today that there was a warning sign on my IPv4 setting, but not on my IPv6 ...
4
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2answers
90 views

How to force active directory replication from one DC to another

I am having issues replicating AD from one DC to another. Both servers are Windows Server 2008 R2 SP1. I have used the GUI option in sites and service to force replication. I have also tried repadmin, ...
1
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1answer
55 views

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 ...
6
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1answer
72 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 ...
2
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1answer
43 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
78 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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1answer
35 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
32 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 ...
0
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2answers
53 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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3answers
97 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
72 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 ...
2
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1answer
318 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 ...
0
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1answer
82 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 ...
2
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1answer
48 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 ...
0
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1answer
34 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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1answer
61 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 ...
4
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2answers
85 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
64 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 ...
0
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1answer
30 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
32 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 ...
0
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2answers
107 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 ...
0
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0answers
24 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 ...
1
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1answer
30 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 ...
2
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2answers
123 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 ...
0
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1answer
153 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 ...
24
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7answers
2k views

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 ...
3
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1answer
29 views

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 ...
1
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1answer
137 views

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 ...
0
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1answer
38 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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1answer
56 views

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 ...
1
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1answer
84 views

Losing trust to domain after restart

Moving my post from stackoverflow : Hello I have a domain environment in which I have a domain controller named dc1.example.com and the domain network name is ms1.example.com . In this domain I have ...
4
votes
3answers
307 views

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 ...
0
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2answers
136 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
124 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 ...
0
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0answers
228 views

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 ...
0
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3answers
45 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 ...
0
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0answers
77 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 ...