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

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Samba on Simply Mepis 1.5G can't join Active Directory domain

As a proof of concept I have Simply Mepis 1.5G (the Linux Box) running on an Oracle VirtualBox. Also on the Network I have a Windows Vista for Business Laptop and a Windows 7 Professional Laptop. I ...
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22 views

Add New DC on Different domain

We have acquired an organisation with Vpn tunnel we are able to access each others network in a few days we are going to establish trust relationship But before that we are going to install a ...
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1answer
18 views

Installing SQL Server 2014 Enterprise on a Domain Controller Windows 2012 R2 [on hold]

All I found in the internet was: Do NOT install a SQL Server on a domain controller and that it is not supported. Why: I hate it, when I re-install my domain controller and WSUS Server and lose all ...
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13 views

logon scripts on samba domain controler

We are using samba (version 4) NT4 style as domain controller, for windows 7 with roaming profiles and logon script to make some restriction regarding to system usage (available devices etc). Problem ...
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21 views

Sysvol Folder in 2008 server

Hi we have many clients with Ad as server 2003, recently we have started adding 2008 as ADC. Now I see in server 2008 sysvol folders are empty is there something to worry? how to fix this in my ...
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82 views

DC locator service (Server 2008R2/2012) - what triggers switching to alternative DC

I'm wondering how frequently DC locator checks availability of domain controller it is connected to. I assume it picks domain controller upon startup, but I'm not sure about the following: - How often ...
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1answer
26 views

AWS Server 2012 R2, adding clients

I have a AWS machine running MS server 2012 R2. Setting up as a domain controller. I have both public and private IP address associated with the machine. the internal network is on 172.xxx.xxx.xxx ...
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2answers
16 views

Single Domain Controller FSMO holder DR

We are looking at the topic of DR at the moment and I would like your expert help in the creation of a DR plan in the event that our PDC somehow goes kaput! Info: Our PDC holds all FSMO roles We have ...
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27 views

Remove Original Domain Windows 2003 with Secondary Domain and Exchange 2013

We are in the process of preparing or investigating how to remove the Old Original Domain DOMAIN_1 from our servers which are on Windows 2003 Server. We have a new Domain installed DOMAIN-2 and both ...
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1answer
39 views

Which server should be the Exchange 2013 DAG Witness Server?

Imagine a standard setup with an Active Directory Server, 4 Exchange servers ( 2 with CAS roles, and two with Mailbox roles) with load balancing and failover. This site talking about how putting the ...
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39 views

Wrong time on Domain Controller running as guest on Hyper-V

As stated in the headline our Domain Controller runs on Windows Server. This server is a Hyper-V Guest. The Hyper-V Host is joined to the Domain. Unfortunately the Time on the Domain Controller is ...
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28 views

Determine usage of UPN for logon inside MS AD forest / domain

maybe somebody can give me a hint on this. I am evaluating the prerequisites for changing all (human) user's UPN in a large Microsoft AD environment to the recommended MS format (aligned with the ...
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1answer
37 views

AD - transfer operation master

Our environment has two domains under the same forest, and two way trust been setup between these two domain (sorry, i'm not very savvy about AD, might be using wrong terminology. I try to be as ...
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1answer
34 views

Joining a window domain - DNS resolve

My computer is joined to a Window domain named "acme.local". However when I login into the computer, I only specify acme\username --> notice ".local" is not specified and not ...
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1answer
44 views

In Active Directory is it possible to specify which domain controller authenticates user?

I am troubleshooting why a user keeps getting locked out & think the issue might be on the Domain Controller. I've cleaned up lingering objects using the Lingering Object Liquidator but the issue ...
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13 views

2008r2 Domain: net view error 6118 on one site

Situation: Domain Level 2008r2, all DCs 2008r2 Site A: 3 DCs, no WINS, Computerbrowser Service not active - net view works (on clients and DCs) Site B: 2 DCs, no WINS, Computerbrowser Server not ...
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3answers
87 views

AD Dynamic DNS Updates not triggering on clients

The problem Recently the computers at our organization moved to a new AD domain, due to a merger. We are having problems getting the clients to dynamically register their DNS records in our ...
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1answer
30 views

Install DHCP failover on domain controllers vs member servers?

What is the recommendation for installing DHCP failover; domain controllers or member servers? I can't seem to find any recommendations either way. I did find an old question here pertaining to ...
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33 views

Replication issue on all 3 domain controllers

We have 3 domain controllers in server 2012. Replication is failing miserably. Repadmin /replsummary dc1 rpc server not available dc 2 rpc server not available dc 3 "Insufficient attributes were ...
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1answer
67 views

PC's think its on a domain

We have a Windows Server 2012 R2 setup here - Its setup with Active Directory & Exchange and is also a Domain Controller: We have 3 machines that are also on this domain, a Windows 7, 8.1 & ...
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34 views

Change passwords for schedule Tasks Daily

I need to schedule a health check script on a particular domain controller , have the service account, everything works. Unfortunately due to firewalls, this script can only be run on a DC, which ...
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1answer
30 views

Change DomainSID on Samba 4 PDC

I've had trouble changing the Domain SID of my SAMBA 4 Domain Controller to an old one. Let's say S-1-5-21-3307158569-4287292154-27117666 is the SID I want to set. I use the following command: net ...
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1answer
37 views

How does Windows find/discover the Domain Controller when you log in?

How does Windows find/discover the Domain Controller when you log in? I've added a new DC to my domain as a backup, but I'm not sure how the computers will know to look for it, as I don't quite ...
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16 views

Error after restore DC

Yesterday , 1 DC in small brach can't boot in Windows . I tried many methods but still can't boot . So i decided restore partition C from 1 week ago-backup version.I restored system state ( not full) ...
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1answer
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Shares suddenly not working

We are running a Windows Server 2012 domain controller in a small LAN with mixed XP SP2 and Windows 7 workstations. According to users everything was working right until some days ago. Now they can't ...
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82 views

Netlogon - Domain Trust Secure Channel issues - Only on some DCs

We have a 2 domain environment. We were having issues with slow connections, authentication failures, and hung resources only during OFF-PEAK hours when there were very few users logged on. The ...
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58 views

AD / SYSVOL Version Mismatch on Default Domain Policy

I've created two test VMs in VMWare, both Server 2012 R2 Standard. One was promoted to a DC, with the domain name being test2.local. I modified the DNS record on the other server, and joined it to the ...
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34 views

windows server domain controller has two names

I changed my domain controller to something else and now all the computers in the network see two computers for the same server (one with previous name and one with current name). Both of the hosts ...
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72 views

Sometime unable to login with domain account although username and password are correct

Every morning , when I try to login to my computer I can't login and the message appears User name or password are incorrect, although username and password are correct. Once I login with the ...
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1answer
38 views

Static IPs and New Domain Controller and Domain within existing Forest

I have a forest domain chicago.example.com that contains 2 domain controllers in it, in which I had joined a 2012 Server to the forest domain called DOMAINCONTROLLER3. I plan to promote this server to ...
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2answers
73 views

How to lower child domain and forest functional level?

I added a child domain (ab.xyz.com) to an existing forest (xyz.com) in Active Directory Domain Services. Both domain controllers are running Windows Server 2012 R2. I want to lower the child domain ...
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1answer
93 views

Is it a bad idea to virtualize DC, DNS and DHCP?

I'm planning to set up a small environment with a Domain Controller, DNS and DHCP using Windows Server. My question is in other words not for a huge world-spanning enterprise network solution (and I ...
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2answers
106 views

FQDN ip address disappears on Windows Server 2012 so DC doesn't work

We have a server that works as DNS, Domain Controller and Active Directory server. (Windows Server 2012) The problem is that computers joined to the domain lose connection so they can’t login or ...
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75 views

Delay Windows (member) Server start-up until Domain Controller is available

What is the most efficient way do delay (or pause) the cold start-up of Windows domain member servers until a domain server is available? There are ways to delay the start-up of a server , but it is a ...
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79 views

Is a domain controller an ideal solution for us? [closed]

We have a VM that is only a domain controller. The idea was to use Active Directory to control usernames, their privileges, and control when our other Windows VM's reboot after patch Tuesday. We ...
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1answer
59 views

How to set a specific Domain controller for a user or client machine to logon-authenticate with?

How to set a specific Domain controller for a user or client machine to logon-authenticate with using the GPO (Group Policy Object) or Registry. I am looking to setup a Specific Domain Controller for ...
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26 views

Active Directory computer description sync to computers

may I know if there is a way to sync the Computer description on the Domain controller (Win 2012r2) to the local machines ? In the past (till now), I created an excel sheet that contains hostnames, ...
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1answer
26 views

Lost primary DC, and second one was never promted

I lost my primary DC, and as it turns out, the second one was never really promoted. I wanted to know what is the best possible way (if any) to recover usernames and servers after building a new DC. ...
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2answers
70 views

Run a Logon Script for User Group for Domain Server

I've been searching for an hour and have not had any success so if I overlooked this as a previously answered question please let me know. I am trying to have a logon script that maps drives on all ...
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1answer
24 views

Windows Domain Network, Cisco 1921 ISR, and NTP

In an effort to make sure all Windows application that rely on time work (such as RDP), and to make sure logging between computers and router are using the same times, I would like to use NTP ...
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53 views

Move all of my domain computers to another domain [closed]

I know there is a tool called ntdom.exe which could join a computer to a domain automatically,but I need a script or program that could run on my server and move all my domain members (PCs) to another ...
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2answers
131 views

Curious about some failures with DCDIAG

I ran a c:\dcidag /v /c /e test (/v = verbose, /c = comprehensive, /e = every DC) on all of my (currently) 5 Domain Controllers, and received this summary of results at the end: ...
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Separate domain admin accounts - are password tokens stored for run-as?

I am considering separating our domain admin accounts as suggested in this previous thread. However, are password tokens stored for "run as" instances? If so, running MMC and other tools with "run ...
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1answer
72 views

Server 2012 R2 Installed AD DC and Lost Internet Access

I am a developer and new to set up and server config... so please forgive my full lack of understanding. I am using a 1&1 Cloud Server with Server 2012 R2 Standard and am trying to set it as an AD ...
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1answer
52 views

Do Firewall and Domain Controller need to in same network for authentication?

My company has a firewall. My company don't have any Domain Controller nor Windows Server device. My boss plans to configure the firewall to let users authenticate with their corporate credential ...
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1answer
81 views

Win10 OpenVPN domain machine cannot find a domain controller

We converted to an AD environment a few months ago. From my home office, I have a Win10 laptop that I joined to our domain with much difficulty (had to set the AD dns server on my local LAN) as ...
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3answers
85 views

Active Directory Multi Site. Choose nearest DCs into Linux/Not-Microsoft applications

i'm having a problem using ldap based on Active Directory in a multi-site environment. Basically I have several different environments(sites) and each of them have its own dedicated couple of domain ...
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2answers
53 views

Secondary AD DC With Fail over

Situation: I have a AD DC authenticating all the users now and serve as the DNS as well. Problem: After reading through this, I am wondering how do I set up another AD DC and configure the site and ...
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Sub-OUs created in the domain controllers OU

I recently discovered an admin, some time ago, reorganized the Domain Controllers OU creating sub-OUs for various locations and moving DCs into them. While I don't have the authority to reverse this ...
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22 views

DR Site removed including 3rd DC before it was demoted

I'm planning a migration from SBS2008 to 2012 Essentials, and Exchange 2007 to Online-Exchange. I have inherited a network structure like this, made up of 2 sites: DataRec Site - DC02 ...