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 reference a Domain Controller out of the Local Network?

We have multiple servers scattered over different hosting providers. For learning, experimenting and, ultimately, production purposes, I set one of them as a Domain Controller. That went well, most ...
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286 views

How to replace an old Windows 2003 SBS DC with a Win2008 Standard Edition DC?

Objective: Trying to replace a Windows 2003 SBS domain controller with a windows server 2008 Standard Edition Domain Controller. What I did: used ADPREP. Then all user accounts and OUs are ...
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Cannot Add Windows Server 2012 as Member Server to Existing Domain

We have an existing Windows Server 2003 domain and several other computers are on that network (i.e., we have Windows Server 2008 member servers, other Windows Server 2003 member servers, Windows 7 ...
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Unable to join 64-bit Windows 8.1 Pro Client to Windows 2003 domain. Win 7 works fine

I am unable to join a 64-bit Windows 8.1 Pro Client to our Windows 2003 domain. A 64-bit Windows 7 client joins fine. After installing Windows 8.1, before joining to domain, if I run nltest ...
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Mutli-DC Environment DNS Error 4015

We recently added a new 2008 R2 DC to an existing 2003 forest with one 2003 DC. We haven't raised any functional levels. The 2003 DC was powered down (it hadn't been demoted yet, but all the FSMOs are ...
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1answer
21 views

AD FS and DC on same Server

i have to connect AD with Azure AD but we have a 2008 r2 server and wwe don`t want to upgrade the server to 2012 r2. Is it possible to have the domain controller and the ADFS server on the same ...
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228 views

prevent domain controller using wpad for windows update

We have a 2012 domain controller in an environment where we are running a web proxy auto discovery (WPAD) setup for client devices, and that proxy server requires authentication. However windows ...
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Setting up a windows server domain network and registration [on hold]

I am trying to create a domain network for my medium sized firm. I have created that successfully using windows server 2012 and joining clients to the domain, However I used a domain name that is ...
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Computers “applying computer settings” for a long time on start-up…why?

Might be a bit of a long shot but I'm stumped, along with the ICT Manager for the school I'm working it. In one of the IT rooms when you switch a computer on it will boot through BIOS fine, but when ...
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2answers
50 views

How to setup a Domain Controller in the cloud

We are implementing a new Windows Server 2012 R2 domain controller for our 2 small offices, and we want to set it up on Amazon EC2. I have read that with this type of setup you normally use a VPN. How ...
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Setting up a Windows Domain in a O365-only company

My company is quite young and small, but since we're growing, we want to rollout some software deployment solution. We haven’t decided which one yet, but they usually need a Windows Domain, and we ...
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1answer
29 views

Resetting DC Password from DSRM

How can I reset my DC's password? I am able to login to the server in Directory Services Restore Mode. I tried pulling up AD DS Users and Computers from there, but it does not appear that it will load ...
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88 views

what happens when a DC fails? How can the clients identify DC failure? [closed]

When a DC fails, it loses the privilege to authenticate and so client will find for secondary DC closest to its site. In another scenario, client has selected a DC closest to its site by using subnet ...
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1answer
17 views

What is “Ticket Options” Referring to in Domain Controller Event Logs?

I'm trying to figure out what Ticket Options is referring too within this event log off my domain controller. It is in response to a kerberos authentication request. AgentDevice=WindowsLog ...
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1answer
23 views

Adding additional 2008R2 DC to Window 2012 R2 domain

I am migrating our company's AD from a Windows SBS 2008 to a news Windows 2012 R2 Essentials server. Everything went fine and the new AD now is in production stage. The last step is adding an ...
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35 views

Would a duplicate DC on same subnet be bad, if ALL auth is only internal to the server?

Here's a weird scenario I'm looking for some guidance on. I have a VM that is a purpose-built "self-contained" demo environment. It has an application stack installed, as well as Active Directory, ...
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3answers
460 views

Run `certutil -DCInfo` on a different target domain

It seems that running certutil.exe -DCInfo Verify will check the certificates for all domain controllers in the domain of the logged-in user account. In our AD forest, we have a handful of domains. I ...
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0answers
21 views

Consolidating Domains from 2 UPN's to 1

We currently have 1 domain (no children) at corp.domain.com. We have an alternate UPN so that users can have their UPN as username@domain.com (no corp). Many of our earlier users however have the ...
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48 views

Microsoft Domain Controller, Account lockout polcy not locking out the users?

Just recently i have hardened the Microsoft 2003 domain controller, due to PCI-DSS requirement. I used CIS- cookbook as a guidance. the password threshold policy is set to 3. but as testing when i try ...
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1answer
44 views

Show NetBIOS name before Username on Windows 7 Logon

I am setting up a new DC using Windows Server 2008 R2, and my FQDN is MFC.com. When I logon to a client computer (E5530.MFC.com) using that domain, instead of showing "MFC\user.name", it shows ...
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1answer
42 views

Domain network not recognized after replacing switches (Domain Controller or Switch)

I had difficulties with our network speed, we still had 100MBit switches so we made a change and replaced our 3 switches with some nice new ones (1 central 16 port going to 2 switches with 24 ports). ...
2
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1answer
278 views

Issue Demoting Domain Controller

I am in the process of demoting a 2003r2 DC. I have set up a 2008r2 Server, set it up as a DC and moved all the roles over. Now I am ready to demote the older DC. When I run a dcpromo I am getting the ...
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How to get the domain controller time sync event? [migrated]

My computer is part of the domain. Say I manually adjust the clock to be off by 2min. Domain controller will sync this clock with its own at some point. Is it possible to track domain controller time ...
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1answer
36 views

cloned windows 2003 Domain Controller wont let me add windows 2012 as member

I did a P2V of my Windows 2003 Domain Controller. I'm trying to add a Windows Server 2012 VM (Computer name: SQL-SERVER) as a member of the domain but I can't. I can ping to both VMs. I can do a ...
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2answers
221 views

How to join computer to domain

I have a DC running Windows Server 2012 with an internal IP of 172.31.27.158. It is both a DC and a DNS Server. Here's proof that DNS is running fine: The machine that I would like to add to the ...
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processing of Group Policy failed only on 2008 Servers and Name Resolution failure on the current domain controller

Spent last 3 months doing a upgrade from 2003 domain to a 2008R2 domain. our last DC was rebuilt (5 total) and brought up on line. After it was put on line we have some 2008 and 2008R2 servers (10 ...
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1answer
39 views

Read Only Domain Controller not replicating after writable domain controller outage

I have a RO domain controller that replicates with a writable DC which is at another site. The other week the writable DC was out for about 2 days because of maintenance at that site. After this ...
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1answer
28 views

WildFly/JBoss server group deployment understanding

According to JBoss documentation: In managed domain deployments are associated with a server group. Deployments will be provided to any server that belongs to a particular group. ...the ...
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1answer
42 views

Active Directory Domain Service started then stopped after dcpromo

I use Windows Server 2008 to install Active Directory follow this guide After a restart, I can only login to local account,not domain account due to the error No logon server are available! I check ...
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38 views

Samba4 functionally on a 2012 domain

Will Samba4 work in a 2012 domain (2012 functional level)? Will Samba4 work as a 2012 DC standalone (that is: with no other DC's)? Will Samba4 work as a 2012 DC together with other DC's (Windows ...
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1answer
1k views

SAMBA 4 Forest Functional Level

What is the highest AD Forest functional level I can use and still have SAMBA 4 function as a domain controller. Can SAMBA 4 act as a domain controller in a Server 2012 functional level forest? Does ...
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3answers
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Domain Controller thinks its on a Public Network

We have a Server 2008 R2 Primary Domain Controller that seems to have amnesia when it comes to working out what kind of network it is on. The (only) network connection is identified at startup as a ...
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5answers
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Unable to ping Active Directory Server with Domain Name

Domain Controller - Windows Server 2008 R2 Standard Client OS - Window Server 2003 ( Terminal Server ) I am unable to ping my Active Directory Domain Name i.e corp.abc.com. ( Please see the ...
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2answers
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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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1answer
52 views

Domain controller not appearing in DNS on any server but itself?

I have a site with a DC I want to decommission, and a relatively new one (promo'd within the last two weeks). I'm having trouble demoting the old server, and in the process of trying to figure out ...
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2answers
5k views

Permissions for Scheduled Tasks on a Domain Controller

I'm trying to run a Scheduled Task on a 2008 R2 Domain Controller and all was well until I set it into the production environment. I'm running the task as a Domain User that's defined in the "Log on ...
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94 views

Applying user settings on a Windows Server 2008r2 server slow from external computers

I have 2 almost indentical environments consisting of a Windows 2008r2 server host running hyper-v and on each host I have 2 Windows Server 2008r2 guests. One of them acts as Domain Controller and 1 ...
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1answer
806 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
35 views

Change Active Directory in Samba share server

I have the next scenenario: Legacy Windows 2k Server as PDC (Primary domain controller) called A Samba share server with some resources connected by winbind with A Clean Installation of Zentyal ...
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119 views

My domain controller/active directory server can't establish a connection with the global catalog [closed]

I have a Windows Server 2008 R2 running as my domain controller. It is responsible for Active Directory, DNS, and DHCP. It is the only DC in the forest. Active Directory reports errors every hour: ...
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1answer
184 views

WebLogic 10.3.2 LDAP Authentication failure after Domain Controller Patch MS14-066 (KB2992611)

I have configured a LDAP authenticator in my WebLogic 10.3.2 domain. Login worked until the domain controller was patched with MS14-066 (KB2992611). Domain Controller OS is Win Server2008R2 (x64). ...
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3answers
72 views

Identify applications that are configured to connect to a specific domain controller

I work with a Windows domain that has many domain controllers (DCs). I'm looking to remove some of these, but I know there are some applications that are hard-coded to use a specific domain controller ...
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1answer
116 views

SNMP service security tab is missing - Windows Server 2012 R2 - DC

i have to configure the security settings for the SNMP-Service on a Windows Server. But they are missing! Here are the fakts: OS: Windows Server 2012 R2 I installed the SNMP feature and i belive, ...
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1answer
39 views

Target object for this command has incorrect format

I'm doing some 70-410 training and this script that I'm trying to run that I made keeps on failing due to an error that I receive that I stated in the topic. doesanyone see anything wrong in this: ...
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1answer
53 views

Domain controller is not listening on port 445

Is there a way to find why the DC is not listening on 445? -> Firewall rules checked , no denies found and the traffic is allowed. -> file share and print share services running. What else to check? ...
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70 views

LDAP query to obtain distinguished name of a list of users

Hi im working on a migration process on which we are migrating users from one server to another domain controller. Right now I have a list of users I migrated, but I also got another of them I didnt. ...
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Local group policy taking precedence over Default domain controller policy

Modified Default domain controller policy to disable and rename the Guest account name using below settings Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> ...
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Exchange 2007 SCR Setup Error finding Domain Controller?

just setting up my SCR enviroment however when running the Enable-StorageGroupCopy command its returning with an error stating that my exchange server object could not be found on my domain ...
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1answer
2k views

Joining to a windows domain — What ports are needed?

What ports are needed in order to join to a windows domain? I am getting an interesting message where the server can find the domain controller names, but cannot reach them.