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

learn more… | top users | synonyms (1)

2
votes
1answer
16 views

Adding an IPv4-only Domain Controller to an existing pool of Domain Controllers with both IPv6 and IPv4

We have an existing pool of Windows 2008 R2 Domain Controllers on-premises. These Domain Controllers have IPv6 and IPv4 configured. Now we need to add another Domain Controller that will seat on an ...
2
votes
1answer
37 views

Guidelines and Best Practice: Prep to Temporarily Shutting Down an Active Directory Domain Controller

1 AD domain. 3 total Domain controllers, all on 2008 R2 The primary DC (with FSMO roles) is being moved to a new office and it will be offline for a maximum of 3 days. This DC also serves DNS but ...
-1
votes
1answer
42 views

How should I manage my cloud-hosted virtual networks/machines?

I am currently hosting multiple production projects in Microsoft Azure. Each project is configured with a separate virtual network with two Windows VMs to act as web servers, and one server to act as ...
0
votes
0answers
38 views

The schema master did not complete a replication cycle after the last reboot

I'm attempting to add a Windows Server 2012 Domain Controller to an Existing Windows Server 2003 network, and then following that, will migrate it to be the domain master. I'm following this tutorial ...
0
votes
0answers
48 views

Suddenly i can not join Windows clients to Samba PDC anymore

Some years ago i configured a Primary Domain Controller through Samba and LDAP (slapd) on an Ubuntu machine (13.10) at 192.168.69.203 which should be accessible by the NetBIOS name SRV1. I must note i ...
0
votes
1answer
85 views
+100

smbclient: Connection to localhost failed (Error NT_STATUS_CONNECTION_REFUSED)

until yesterday I had a functioning Active Directory Primary Domain Controller running on a raspberry pi. Now it seems I cannot get the 'samba' service to listen at all. This is since performing an ...
2
votes
1answer
95 views

Secondary domain controller not functioning when primary domain controller is not reachable

We are small business intelligence company and we have a head office and a branch office. I have active directory running on windows 2012 R2 in the head office and another active directory running on ...
0
votes
0answers
30 views

How to get remote users to authenticate?

We have some remote users who are rarely on the company LAN. They may be remote for six months or more during a year. Every so often we encounter the problem of errors like: "There are currently no ...
-2
votes
1answer
72 views

Active directory 2012 password policy

I have a windows server 2012 R2 active directory environment running in my office. I have a primary domain and a child domain. Both the domains have password complexity enabled. Active directory ...
0
votes
0answers
37 views

Design Recommendation to Future Proof Active Directory

We are currently setting up the first Active Directory for a business within a brand new private equity group. This private equity group owns 4 businesses and will be acquiring many more. I ...
0
votes
2answers
28 views

What could be the reasons to configure LAN clients to use the server IP as DNS server in a domain controller Windows network?

This is rather a basic networking question, but I have found this configuration on several domain controllers with Windows Server, and I think ServerFault should be the proper site to ask. What are ...
1
vote
1answer
38 views

Can I use ansible to startup jboss service in domain mode?

I used sh /usr/local/jboss/bin/domain.sh manually, and jboss works fine. When I use ansible to start jboss automatically, jboss log always shows "Container is down". File /root/startup_jboss.sh : ...
-3
votes
0answers
27 views

Active directory Delegation

I need to delegate a permission for the technical support team to be able only to create users in specific OU. I have used the delegation wizard and the permission worked fine, but I noticed that the ...
22
votes
6answers
2k views

What causes a workstation to lose trust with the domain controller?

I've received the error several times on Windows 7 Workstations and Laptops where it loses trust with the domain controller, and I know how to fix it, but why does it do that?
0
votes
0answers
58 views

All options greyed out when trying to configure Active Directory Domain Services Windows Server 2012 R2

I am configuring the first domain controller for a new domain. The install of Active Directory Domain Services seemed to go ok, but when I attempt to configure the domain controller it gets stuck on ...
0
votes
1answer
113 views

Server 2012 stopped accepting computers joining to our domain with error 53: the network path was not found

We have Windows Server 2012 R2 Standard as our DC. Several workstations were added to our domain successfully. But then (I cannot determine what exactly could be a show-stopper) it stopped accepting ...
0
votes
2answers
36 views

Remote Desktop Services role - Do I need it in order to use MSTSC (RDP/RDC) in my domain?

Greetings and thanks for reading (apologies for the length). I'm a new Sys Admin and I have a (potentially silly) question for the more seasoned veterans. I'm migrating our primary Domain Controller ...
0
votes
0answers
16 views

Issue with creating a new forest and promoting a domain controller

I am creating a forest and domain controller for the first time. The error I get is: Error determining whether the target server is already a domain controller: Starting a command on the remote ...
1
vote
0answers
75 views

How to disable Null Session Enumeration of the DC?

I am a sysadmin for a company, and we just had a Penetration Test done on our internal network, the team discovered that it is possible to perform query\enumerate our DC (Server 2012) for information ...
3
votes
2answers
47 views

Hyper-V standards, replication before or after exchange

I'm currently building my own lab to improve, however I have a couple of general questions. I have 2 dell R710 servers, with 2012r2 and the hyper-v role installed. What I want to do is build up 4 ...
0
votes
1answer
18 views

New site is not listed when adding new domain controller

I inherited this network and I'm trying to figure out what I am missing. I created a new site in Chicago and I want to add a domain controller to it but the new site is not listed when I go to ...
0
votes
0answers
12 views

Running Session Virtualization in Server 2012 off a single server box

My technical level is below average here. I have an HP (Proliant DL380 Gen9 Xeon e5-2620) machine running Server 2012 and Wyze thin clients off which I want to run 10 full Windows 8 Remote Desktop ...
-2
votes
1answer
96 views

Can't log in to the DC remotely as Admin

I need some assistance ASAP my old IT Manager who got fire mess up our DC. Now I can' login to DC remotely as Administrator. Non of the 5 Windows servers that I have. This is the error message " To ...
0
votes
1answer
59 views

Explain how FRS replication backup works

Please explain me why I have to add just some registry keys to repair sysvol-replication. I mean, it is like file-based and I want to backup it before I change anything. There are some NtFrs 13568. 2 ...
-2
votes
1answer
84 views

DNS Inaccessible

I know this might seem a duplicate but wait! We have a Windows Server 2012 R2 domain controller, it obviously is a DNS server which hosts one AD-integrated domain. recently, it stopped responding and ...
0
votes
0answers
89 views

Logging in after an Acronis Restore on Server 2003 with “Windows Cannot Connect to Domain…” msg

We have two machines both running Windows Server 2003. The AD Machine is the Active Directory. The CTX Machine is our Citrix File Server (this has a RAID Array). Recently we had a RAID problem and ...
0
votes
0answers
16 views

Joining Samba4 domain as BDC

I am attempting to build a Backup Domain Controller (or BDC or Read Only Domain Controller, or whatever you decide to call it), but I am having issues joining the server to the Samba4 domain. I have ...
-1
votes
1answer
18 views

EventLog “Access Denied” after installing an additional DC in a 2012 environment

After promoting a new DC into an existing domain, Eventviewer shows the following: I might as well mention that the Installation itself did not experience any issues When looking at the ...
1
vote
4answers
77 views

Will cached domain credentials stay working if machine never re-connects to domain?

I have researched this thoroughly, and cannot find the answer I am looking for. A company I recently left is going through a bankruptcy. They have already auctioned off most the IT equipment, ...
2
votes
1answer
149 views

w32time in domain polling from wrong Domain Controller

From the MS Documentation I can see that computers in a domain should get their time from the PDC domain controller, and if done right the PDC should get it's time from an external source. In my ...
1
vote
1answer
26 views

“sub domain” in lnternal network

i have a small network under a Windows domain-controller. the server (Win2012) run a WebSite which is accessible by typing the machine-name (srv/). i want add a website with binding to sub-domain: ...
-4
votes
1answer
59 views

How to create an Internet facing Domain Controller Without VPN

I am extremely new to this. I am trying to create a domain controller that could be contacted via Internet. In clear words, I am trying to create a Windows Server 2012 R2 domain controller with ...
1
vote
0answers
215 views

Event log subscription returns error code (0x138C)

I have been battling getting Event log subscriptions to work on my server 2012 R2 domain controllers. I have created the collector-initiated-subscription using the GUI and selecting the defaults ...
1
vote
1answer
41 views

what are the implications of running a FQDN as internal AD domain and point A-record for website to different host?

The MSP for a law firm office that has just joined our company is using a FQDN as an internal AD Domain and has been doing so for sometime apparently. They have this issue in that they have a website ...
1
vote
2answers
84 views

Any Tips when Raising the Functional Level of a 2003 Domain

I will be doing my first DFL rising this evening (from 2003 to 2008 R2). Is there anything worth noting that I should look out for? Any risks involved? Or server reboots? I've done a system state ...
-3
votes
2answers
40 views

Unattended DCPromo creating new domain fails as user is not domain admin [closed]

I have installed Windows Server 2003 and am trying to make it a DC on a new domain. It works ok if I use the wizard, but when I try to use an answer file, it says 'An AD domain controller for the ...
3
votes
1answer
65 views

Re-join same computer to Windows domain without domain admin privileges

Is it possible to have a previously domain connected client computer re-join a Windows domain after a clean re-install of the OS, to assume again it's old identity, all without the explicit say-so of ...
3
votes
1answer
39 views

Any way to query LDAP binds on domain controller?

I'm working on planning a DC rebuild, and I'm trying to be as thorough as possible before demoting the old one. Is there any way to view all LDAP connections to a DC either by source IP or hostname?
2
votes
1answer
151 views

Cannot create new users in Active Directory (Using Samba4 as DC and AD)

I setup Samba version 4.1.17-Ubuntu as domain controller and active directory, and everything seemed to go smoothly, but when I try to use the administrator account on one windows 10 PC domain member ...
0
votes
1answer
76 views

Cloning Windows 2012 R2 domain controllers with KVM

Virtual domain controller cloning is a new feature from Windows Server 2012 that I use because it's a very useful and simple way to add additional domain controllers to an Active Directory domain. ...
-1
votes
1answer
220 views

dcpromo prerequisites for Active Directory preparation failed

Cannot promote a new Server 2012 R2 server to domain controller on an existing domain. The prerequisites check fails. Verification of prerequisites for Active Directory preparation failed. Unable to ...
0
votes
2answers
56 views

Are there any specific tools for troubleshooting Domain Controller & Client connectivity?

I am setting up a test rig on Amazon Web Services comprising of 2 web servers, 1 database server and 1 domain controller. All the servers are Windows Server 2012. I have had random occurrences of the ...
-5
votes
1answer
39 views

Dc Replication issue when on one of the Dc moved to another location [closed]

We have one Domain controller in Dallas office and other 2 in Chicago. An administrator in Chicago moved 1 domain controller to Salt lake, now the problem starts here Chicago location and salt lake ...
0
votes
0answers
15 views

What are these ACS containers under my subnet objects?

I have ACS folders under my subnet objects in sites and services. Did some googling and now I'm more confused. Apparently this is Windows QoS Admission Control Service- which is Windows ...
0
votes
2answers
123 views

Cannot run SAMBA (DC) and OpenLDAP, (The port is being used)

I installed samba and made it a simple domain controller, and I intend to set it to make the authentication over OpenLDAP. The problem is I can NOT run both slapd and samba processes at the same time. ...
1
vote
1answer
27 views

Is _msdcs a separate application partition?

I have read in MS docs that by default DomainDnsZones.domain.com and ForestDnsZones.domain.com app partitions are created when dcpromo is run on the first DC in the forest. Isn't _msdcs not also ...
1
vote
1answer
58 views

Join Computer to Domain with Seperate Active Directory and DNS Servers [closed]

I'm trying to understand how to join a client to a Windows domain that has a separate AD and DNS server. I have installed one server with the AD role and one server with the DNS role. Even if I ...
0
votes
1answer
103 views

Received an email about abuse on our public dns server

We have several virtual machines on a public network due to the ip addresses being public. We received the following email today: We have received the following complaint for xxx.xxx.xxx.xxx. ...
0
votes
0answers
4 views

Symlinked files in shares not showing for clients

I have a bunch of shares that contains symlinks to files and folders. But the files don't show up when viewed by clients. Let's assume I have Ubuntu set up as a Samba Domain Controller and I add a ...
0
votes
0answers
31 views

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 ...