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

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Strange behavior from demoted DC

We used to run our own domain (referred to as OLD) but are now in the process of completely removing it and using the campus wide domain (referred to as CAMPUS). We have 2 DCs still active for our ...
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39 views

I can load an IIS hosted website via the Internet but not locally

I have just changed the bindings to use SSL for a website hosted in IIS on an AD Domain Controller. The new binding is IP: all unassigned - Hostname: site.domain.com - Port: 443 I can access this ...
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10 views

vChanged Computer Name - Domain Login not possible

I cloned a machine on vSphere. After booting the clone I changed the IP and Computername since both are in our domain. Now in domain controller the old server disappeared and I can't login to any of ...
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16 views

server 2012,invalid network adres

I have virtualbox with a windows server 2012 DC and a windows 8 client.I can login on the domain as Administrator on the windows client but when I want to change the password of the domain ...
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1answer
82 views

How to authenticate a user from an external Windows Domain (Active Directory)

I have a service (AcmeService) running on a domain (ACME.COM) and a user running in another domain (DISNEY.COM). mickey@disney.com wants to authenticate with the AcmeService. The service knows about ...
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31 views

Restoring read only domain controller from VM checkpoint

I have several RODC on remote sites, and sometimes power failures corrupts ADDS database which takes some time to recover. I'd like to move RODC to virtual machine (on same server) to be able in case ...
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1answer
37 views

Unnecessary Certificate Authority in Domain

I have an organization with a file server that is a secondary domain controller(2003 R2), an Exchange server(2008 R2), and a primary domain controller(2008 R2). We also have what used to be the ...
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1answer
17 views

2003 Domain Functional Level — Do I need to run adprep.exe to trust a 2012 DFL?

My company is still using Windows Server 2003 for the Domain Controllers, with DFL (and FFL) already raised to 2003 DFL/FFL. Now, we need to trust the domain of our new subsidiary. Their domain is ...
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2answers
59 views

Part-time AD server

I'm trying to understand how current Win 7/8 machines behave when they lose access to their domain controller and if it's possible to have machines be part of a domain if domain exists only part time ...
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1answer
59 views

w32tm /resync not working instantly

This Question is mostly for other people to learn from and to satisfy my own curiosity if someone knows why it does the following. We had a problem with our DC not having the right time due to it ...
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1answer
21 views

WIndows Server 2012 R2 + Windows 7 Ultimate CD Burn Rights

H have recently installed a ADDC in my office to manage users. I have actually setup roaming profiles and everything is great apart from one little issue... On the PCs standard users are unable to ...
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3answers
101 views

Why doesn't the time match on two Windows Domain Controllers despite resync?

In my domain there are two domain controllers, there is a gap of 3 minutes between their times and than I can find this difference between many clients (it depends on their DC). If I run this ...
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59 views

Windows Server 2008 R2 - proper way to remove failed Domain Controller

Hello i have a case with single model server. Original name of HP server was w8kcdn, the server started generating problems, so i needed to reinstall it. I've setup temporary install on PC with ...
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1answer
18 views

Deleting reverse zone in windows 2003 DNS server

This is my first time posting here on server fault. The problem i am faced with is when i try to add another DC to my network i am getting a very weird error. After some countless hours and re-reading ...
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1answer
42 views

Can I use an RODC for Active Directory athentication if the writeable DC is not available for several months?

We are running an Read-Write DC at our home office which we are using for authentication when were are working there. It works fine as long as we are at the office, but we are going to be on the road ...
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88 views

pfSense and Windows Domain Controller - configuration?

I've got a small scaled business network separated into green, orange and red using pfSense as firewall & gateway. In the local network, there's a Windows server machine hosting a domain ...
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1answer
32 views

Exchange on a domain controller [duplicate]

I have exchange 2010 installed on a 2008 R2 Domain controller. Will it create problems for exchange if I depromote the dc back to a normal domain member? I am guessing it probably will which is why ...
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60 views

Active Directory Mismatch

I have a Active Directory Mistmatch how do I fix this? I have 2 x 2008 R2 Domain Controllers and a 2008 Domain Controller and I was trying to add a 2012 R2 Domain Controller. The Schema Version of ...
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2answers
80 views

Local Privileges/Rights Issues after Domain Rename Windows Server 2012 Std R2

After renaming a domain from .com to .local I've noticed that none of my credentials work when I try to make any changes using my domain Administrator account. When I try to install software that ...
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1answer
49 views

Prevent / Throttle LAN clients using domain controller as gateway

We're in a remote location in the UK, and as a result, have limited bandwidth. We are using on-router bandwidth throttling to ensure QoS for all users on the network. Our domain controller bypasses ...
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2answers
580 views

Domain Controller offline for a few days

My primary domain controller died over the weekend, its motherboard is being replaced tomorrow. I have been told that the mac address of the server may change once the new motherboard is installed. ...
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1answer
112 views

Unable to use Remote Desktop connect to Windows server 2003 by Terminal Services

I have a system composed with few windows servers 2003 R2, one is built as the domain controller another one as a web server. I tried to remotely log on the domain controller with a wyse thin client ...
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1answer
34 views

How to dump(collect) all the group policies in a domain?

I want to collect all the GPOs in a domain , for reviewing settings. How many ways are there to do it. I used Get-GPOREPORT in Powershell, but it gave a comprehensive html file, is these a way to ...
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1answer
133 views

Use Roaming Profiles as Default in AD (running Samba)

I've just set up an Active Directory Domain Controller (running Samba 4), created users, shares, groups, etc and everything is working. However, I have an environment where the use of roaming ...
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1answer
59 views

FRSDIAG / NTFRSUTL looking for servers which don't exist

I am using the FRSDIAG room(from tech-net) to do diagnosis on FRS replication. The issue is its tying to check the DC's which no ,longer exist . Error being "missing server reference for the server ...
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2answers
139 views

Windows Server 2012 R2 in a Windows Server 2008 R2 domain

Can a server running Windows Server 2012 R2 (file server, app server, etc.) exist on a network with Windows Server 2008 R2 domain controllers, or do the DC's need to be upgraded first?
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98 views

Domain controller is registering 2 IP addresses with DNS

Recently a DC was promoted and the IP was used from the old DC which was demoted and shutdown.How tostop this DC from registering 2 IP addresses with DNS? Please let me know if any questions.
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40 views

Domain controller with new domain on my network

I am migrating my organization from one domain to another. The old domain can be referred to as X, and the new domain is Y. On domain X, I have created a VM that will act as a DC for domain Y. ...
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43 views

Sysvol Replication issue

I have read a lot about this recently and must say it is doing my head in. now what I did was 6 months ago we did a upgrade of our infrastructure. We had a 2008 R2 server for domain controller now I ...
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1answer
71 views

DNS and IP Configuration for Windows Server 2012 DC

I am getting these errors: SERVER Error DNS: DNS servers on vEthernet (Intel(R) 82567V-2 Gigabit Network Connection - Virtual Switch) should include the loopback address, but not as the first ...
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3answers
460 views

Domain Controllers as internal DNS servers

Our company environment is growing rapidly and I'm in the process of upgrading our Domain Controllers, but before I do I wanted to do a quick sanity check to make sure I'm still doing everything the ...
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1answer
62 views

Migration of Virtual DC to another ESXI host

I have DC on ESXi host. I want to migrate it to another ESXi host on same LAN. What is the best option? [I already have vCenter and VEEAM) Turn Off DC, and do migration from ESXi-1 to ESXi-2 using ...
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48 views

Domain controller stops mapping drives from file server

File Server: Windows Server 2008 R2 Standard Domain Controller: Windows Server Standard FE 2003 SP2 This has happened twice now. User will try and log in using their domain accounts and will receive ...
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51 views

Samba Roaming not working

I had configured Samba as domain controler on Ubuntu 14.04. I can register computers(WIndows 7) to the domain but the roaming profile does not work. smb.conf looks like: # Global parameters [global] ...
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2answers
58 views

Unknown issue taking down client machines, virus or coincidence

I’m sorry if this should be on SuperUser instead of ServerFault. Please ask me to migrate the question instead of flaming. I’ve had 2 windows desktops go down on the network in the space of one ...
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1answer
58 views

Active Directory DNS probelm

I have following scenario. Windows 2008 R2 base Active Directory DC (DC1), which is hosting DNS+ DHCP too. (previously it was on windows 2003 32bit, i migrated it last year on 2008 r2 64bit). Also ...
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3answers
282 views

If I join esxi to an Active Directory domain, how does it choose which DC to authenticate to?

I'm familiar to vSphere and large installations, and not at all familiar with the free products. Topology & configuration We have some branch offices that use ESXi and have a DC resident on ...
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1answer
86 views

windows 8.1 machines have black screen after removing one of two domain controllers

We recently had a DC crash out, fortunately(?) not our GC, so we removed it from AD, and DNS. Most of the machines on the network (All of our XP, 7 , 8 machines) appear to have picked up the new DC ...
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1answer
461 views

Continuously check LDAP connectivity to Domain Controllers ( LDAP Heartbeat Check)

working on developing script which runs via schedule task ; whole purpose of it is to target few domain controllers and continuously(for every 2 sec) do a ldap query targeting that particular DC and ...
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1answer
33 views

Windows Domain controller recover test

I'm testing a Exchange 2012 VM recovery in a Hyper-V test server. I have this VM, 2 DC and a Exchange server: SRVDC1 (pdc, nm, rid) SRVDC2 SRVEX2 As far as I know I need to recover also a Domain ...
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131 views

Add additional name to a Domain Controller

I am looking to rename a Domain Controller. Functional level and everything else means I can use netdom to carry out the process. Looking a the technet article on the subject I can see the first ...
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78 views

Creating Exchange account for user of subdomain

We have a W2008R2 server which serves as AD DC for intra.contoso.com and Exchange server. We have a W2012 server which serves as AD DC for subdomain sub.intra.contoso.com (which is not a new forest) ...
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25 views

Will the timezone be converted across geographical areas?

I'm using Active directory in Windows server 2008 R2. My domain is in a particular timezone and my client say X is in another timezone. Now I have implemented certain restrictions that X cannot logon ...
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2answers
144 views

Domain Controller using sub domain while hosting provider does main DNS

I'm trying to setup a Domain Controller on Windows Server 2012 R2. I read that best practices are to not use a made up TLD (such as .local, .lan, etc.), but use something that you actually own (say ...
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3answers
282 views

How can I prevent the compromise of a Domain Controller on ESX stored in a unsecured location?

A client of ours has a DC that will be located in an insecure location. RODCs and separate domains/forests are not permitted by management. All the servers will be located on a VMWare ESX server. ...
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2answers
90 views

Infrastructure advice - appliaction and network servers

I'd like to ask for server infrastructure advice. We'll be upgrading our network infrastructure (built on MS ecosystem) and so far we have two servers (not counting ISA server): one machine serves ...
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3answers
101 views

DNS slow after losing DNS Server

We have set up a small Windows Server 2008 R2 network with a domain controller which is also acting as the DNS server for the network (we opted to install DNS when setting up the domain). This network ...
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1answer
79 views

what happens to the local users and groups when promoting a server to a domain controller? [duplicate]

What happens to the local users and groups when promoting a domain member to a domain controller? I have a Windows Server 2008 that I have made to a domain controller by installing AD DS, but it was ...
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2answers
317 views

Windows Server 2012 Migration (DNS/AD DS Standard Eval to Essentials OEM) P2V -> Do I need a Secondary Domain Controller during migration?

This is my first post on this exchange (although not my first on stack exchange), so please have patience. I am a 3rd year student intern, and I have been tasked with virtualizing the server systems ...
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152 views

gpupdate failing when using Samba 4 AD DC

I have a Samba 4 AD domain running with 2 DCs on Centos 6.5, with a named DNS backend. I have multiple Windows 7 machines joined to this domain, which is fine. However, I can't get GPOs to apply. ...