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

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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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169 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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35 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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21 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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24 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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47 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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Active Directory (Samba 4) administration with free software on Linux [closed]

I've no idea about LDAP or Active Directory, but somebody installed Samba 4 for centralized user accounts for some infrastructure tools and I'd like to administrate users and groups from a Linux ...
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43 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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154 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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13 views

Connection through SSL VPN client is redirected always to the Domain Controller, how to solve?

Up to now we were using L2TP protocol to establish VPN connection with our machines in the workplace. When using the L2TP protocol, it was possible to connect to both the Terminal Server and the ...
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44 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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161 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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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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96 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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20 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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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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79 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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248 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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74 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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75 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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48 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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119 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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49 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. ...
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23 views

Powershell waiting for more parameters when asking for all users from a specific OU?

I want to get all the users from OU "myusers" so I have this cmdlet right here: get-aduser -filter * -searchbase"ou=myusers,dc=domain,dc=com" But when Im running it, powershell prints a >> ...
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53 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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Add 2012 Standard server to existing SBS 2011 domain for multipleRemote Desktop access to resources

Clients current network configuration: SBS 2011 domain with 15 user CALs /not used for email just pretty much used for data and occasional RWA to desktop PC's. They will be adding another 40 ...
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74 views

Domain account credentials fails to start scheduled tasks

I have 2 Windows 2000 servers in a domain 'DC', which run numerous windows scheduled tasks under the 'DC\Task-User' account. These tasks are and have been running successfully in the past couple of ...
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60 views

How to logon with local account? RODC “There are no logon servers to process your request”

I have a site-to-site VPN, writeable DC in main office, Read-only DC in branch office. Today the VPN went down, but i couldn't log in to the read-only DC - the error message came up There are no ...
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80 views

how to expose Domain Controller on public IP address, and make other DC talk to it?

basically we have 2 DC servers which used to have site-2-site VPN but it's not working anymore. So we started to get various errors, DNS stopped working, etc, etc. As a last resort attempt (before ...
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792 views

Why can I login to a box even if the AD Domain controller is down?

Scenario: While my DC is running, I log into an arbitrary machine. I stop the DC I log off the arbitrary machine. Let's bounce it for good measure, too. When the machine comes back up, I can still ...
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168 views

How to find which machines are configured for specific DNS server?

We are currently removing ancient DC's from our domain so we can upgrade and I ran into an issue the last time one was removed. We had a few old UNIX machines that were pointing to a certain DNS ...
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62 views

Looking for advice, domain controller/remote logon

Alright, so we currently have 2 locations with 10 pcs at each location. We're looking for a solution that will allow us to have any user, use any PC, at either location and be able to login without ...
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307 views

How to remove orphaned Domain Controller's DNS records?

It looks like in the past there were some two improperly decommissioned Domain Controllers (DC1 and DC2) that belonged to this domain. I am concluding this based on some remaining records in the ...
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79 views

Restricting User Rights Assigning in Default Domain Controller Policy

I am currently reviewing my work's default domain controller policy GPO against the MS Security Compliance Manager, and one of the things I have found is that there are many things that have user ...
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55 views

How can I upgrade an ancient Win 2000 based domain controller to Windows 2008/2012? (by replacement)

We're running Windows 2000 as our domain controller (!) and a separate backup domain controller, but as the PDC is 12 years old we would like to replace it. We have a couple of 2008 R2 and Win 2012 ...
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204 views

Active Directory - List ISP DNS servers as Forwarders?

Background: I have a relatively small Active Directory domain (Windows 2003 Functional level) with two domain controllers, both running DNS servers. They are the primary and secondary DNS servers ...
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70 views

V2P of a domain controller?

I work in an environment where the amount of paperwork I have to do to stand up a single server in boundless. That being said I'm standing up two new 2012 R2 Domain Controllers. One is to be a virtual ...
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59 views

how do i test my DC backups

I have several system state backups of my domain controller 2008r2 stored on a network location. I am wanting to build a test environment so I can practice recovering a domain controller and also to ...
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Domain Controller all FSMO roles, AD,DHCP,DNS 2008r2 backup best practice

hello I am looking to back up my 2008 r2 domain controller, we have 1 forest and 2 domain controllers, idomain-1 and idomain-2 idomain-2 is used for failover and idomain-1 replicates to it. having ...
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174 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.
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16 views

2008 DC DHCP Inquiry

We have a few servers mainly for SVN, File and nightly builds. We only use the DC for ALC. Currently, I'm using the Sonicwall's Built in DHCP to issue IP's to developers. Of course if the firewall ...
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414 views

How can I map a network drive from another domain?

I am using terminal-service server with Windows Server 2012 and we have two terminal servers share trough NLB, users connect to a terminal in the DOMAIN1 domain with Remote Desktop Connection (see ...
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“Peaky” CPU Usage on Domain Controllers

We have two Windows Server 2008 SP2 (sadly not 2008 R2) Domain Controllers in a small 150 client domain that are exhibiting very "peaky" CPU usage. The Domain Controllers both exhibit the same ...
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116 views

How can I prevent a second network interface from updating DNS with its IP address?

Recently I added a second network interface to my Domain Controller, and assigned a private subnet to provide a iSCSI volume for backups, but the IP address from this interface is being propagated to ...
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128 views

How Active Directory Dynamic DNS updates works behind the scenes?

I've looked through the AD documentation and I was not able to find any conclusive answer to this question. It's plain simple, but hard enough to be answered. How DDNS of AD works behind the scenes? ...
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153 views

Setting up a domain controller in an Azure Virtual Network, how should I configure the DNS Server List?

I've set up a simple Azure Virtual Network (VN) consisting of a single domain controller and a few clients. Now I need to know how to configure the VN's DNS Server List. Here are the two options I've ...
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47 views

LDAP connections favoring 1 DC over the other in same site

Observing spikes in "AD Search Subops" counter and "PROC LSASS%" counter daily on DC A relative to DC B; its not in maintainence windows; its at start of business hrs daily. -> Eliminated the point ...
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changed public ip address of domain controller now other servers cannot find dc [closed]

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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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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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 ...