Questions tagged [domain-controller]

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

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minimal percentage of domain controllers online

Good day, for a recovery test we restored one (out of 5) domain controller and the needed servers. however we found out that the domain controller (wich hold the PDC-Emulator) was functioning in a ...
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repadmin (1727) the remote procedure call failed and did not execute

In my domain environment (Approx. we have 50 DC's with 20 Sites). we have mix environment (Server 2008 r2 & Server 2012r2). Since the last one week I am seeing Error "(1727) the remote ...
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Setting up Remote Desktop for a Virtual Machine into a Domain

I want to set up the remote desktop for a virtual machine that I've just created with windows server. I would like to give access to other domain users(without privilege). But I don't want, when users ...
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36 views

Administrator - A user account was locked out. But it wasn't?

I've enabled a lockout threshold on our domain now and my DC audit log is FILLED with 4740 "A user account was locked out" for the Domain Administrator account however it is NOT locked out ...
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Exchange 2013 Hybrid EAC not seeing mailboxes in a second domain

We have a hybrid setup. I have a situation where certain users are not showing up on the local on-prem Exchange 2013 server under recipients. We have two domains in our single forest. I will call our ...
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Why is programmatically joining to Windows domain failing?

We are facing an issue for a particular customer where programmatically joining a machine to a domain is failing. The machine is cloned from a parent VM and attempted to be joined to the domain using ...
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<ask> replication user active directory between sub domain windows 2008 to windows 2019

I have one forest with name xyz.co.id and in this forest I have created sub domain with name fa.xyz.co.id (Windows Server 2008 R2), dc.xyz.co.id (Windows Server 2019) user object active directory ...
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Domain Controller DNS alias

I recently updated an old Win2008R2-based domain to a new Win2019-based one (with the common promote / demote / decommission dance). This was for a very small office (3 peoples), so this is a single-...
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rendom fails on /execute with error 8333

I am trying to rename a 2-DC 2012 R2 single domain with rendom. I do the /list, edit xml and /prepare which work OK. But when I do /execute it fails on both DCs. There is a suspicious entry near the ...
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28 views

Active Directory central store not showing new policies?

Our Domain has never had a central store. So I created C:\Windows\SYSVOL\sysvol\Domain\Policies\PolicyDefinitions and added the new ADMX files for the current Win 10 build. Now when I go to edit a GPO ...
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1answer
41 views

I cannot join machines to domains when primary DC fails, everything else works fine

So we have two domain controllers on our little network and they both have DHCP and DNS replication. Active Directory was set up with replication betweens these two. Information that is created on any ...
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Remote Site Domain Controller Failure

We have a remote office with defined AD Site and local DC that has failed. Clients cannot authenticate. We have a private WAN to HQ but I'm unclear of change needed or impact. Do I just move the ...
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Running separate RAID arrays simultaneously… is it possible?

I've just obtained my first real life server. A dell PowerEdge 2970 with 8 HDDs. I did some rudimentary studying on the Internet about RAID configurations and hopped right in. Having read that it was ...
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How to configure DFS Replication group in Active Directory

A newbie question here. I have two Windows 2008 R2 servers. DFS Management installed. When I go to "New Replication Group", and try to create a group in the domain, I get "Insufficient ...
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RDP connection allows any domain name as long as user is correct

I'm hoping someone can provide some ideas about this. I've got a couple of virtual Windows servers set up on Server 2016 and Server 2019. They are DCs and also RDS servers to run remote apps. I'm ...
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30 views

DMZ Member Servers unable to return or authenticate internal domain accounts

I have DC in a DMZ where I can easily look up domain accounts from our internal domain under the NTFS permission if I tried to add users/groups to folder NTFS permission whiles logged in to the DMZ DC....
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1answer
31 views

Backup before demoting a Windows 2003 R2?

So i want to demote our good old Windows 2003 R2 DC, which is one of 2 DCs in our system. I have layed out all the steps (imo) necessary to sucesfully demote the controller. Before i start i would ...
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1answer
73 views

Best practice for external NTP Server on Windows AD network

I have a Windows Hyper-V network. I have 2 domain controllers; both are VMs. DC1 runs on Host01 and DC2 runs on Host02. On each Domain Controller: w32tm /query /source returns VM IC Time ...
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1answer
20 views

How can I link Domain users with Local users for Terminal Server connections

I have a strange setup. I have a terminal server with local users to that Terminal Server. The Terminal server is on the domain The program that is being accessed, can't get Domain users, so we are ...
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1answer
35 views

Can a single DC be demoted?

I'm running WSE 2016, which must be the only DC in the domain. According to the documentation, it is incompatible with a PDC/BDC construct. For some unknown reason, Windows Updates have been failing ...
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44 views

Remove Old Server2008 DC Offsite

we (still) have an outdated Domain with 3 Server 2008R2 DCs. One DC, which was from a remote (VPN) location, is now on my desk in main office. The goal is to demote and remove it from Domain. 2 will ...
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39 views

Enable Role as AD Certification Authority, what can go wrong?

I am about to install the role Active Directory Certification Authority on a Windows Server 2012 R2 that is already our Active Directory server. The reason is, that I want to enable LDAPS following ...
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Share DFS location and Change Name of DFS folders

I want to simplify file server access from displaying multiple drives to instead, share the DFS location that lists all of the shortcuts to the actual folders and files my users need access to. The ...
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Azure Active Directory Domain Services (AADDS) DNS Outages

We currently make use of the Azure Active Directory Domain Services (AADDS) as the domain for our Azure hosted Virtual Machines. Every so often, we experience domain services failures, related to DNS ...
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1answer
29 views

Why Windows domain controller reset password for domain computers? [closed]

I got message of 4724 event, where domain controller reset password for domain computer. TargetUserName": "COMP123$" ... SubjectUserName": "DC2$" Why it happened? Is it ...
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40 views

2x Windows Server for 2 labs in different parts of a building - what kind of failover to use

I have two servers and two labs in different parts of the building with Hyper-V 2019 with VMs for Windows Server Standard (2012 R2, will be upgrading in a few years). I want to: configure ServerA for ...
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Powershell Remoting into Non-Domain server issue

Can anyone help with the following problem? I am trying to remote into a server (SVR_A) that is not part of the domain from the server(SRV_B) in a company domain. I can ping each server (SVR_A to ...
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2answers
69 views

Missing DNS records after fresh AD+DNS Server installation {Server 2019}

I've installed Win Server 2019 from an empty template I had of a fresh server. Installed Domain Services, promoted to Domain Controller, created an entirely new forest but then noticed I couldnt join ...
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Computers can't join domain - probably DNS issue

I installed and configured an Active Directory Controller (Windows Server 2019), and also did a clean install of Windows 10 Enterprise. Both were installed in Hyper-V and both use the same Private ...
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Slow initial DNS query to samba domain controller

I have two Ubuntu server VMs joined to a Samba domain, served by a single Ubuntu server domain controller. Both "clients" have an almost identical netplan configuration, defining the domain ...
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29 views

gradual linear increase in CPU usage by DNS.exe

We have a domain controller running on a Server 2016 physical server and we have noticed that over time, DNS.exe gradually consumes more and more CPU, to the point where the server becomes ...
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1answer
255 views

Raising Domain Functional Level

In my environment, I currently have three domain controllers. My main DC is running on 2012R2 and the other two are running on 2016. The current domain functional level is 2008R2 and the Functional ...
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29 views

Replacing damaged 2012 domain controller with Win 2019

We have a domain with 2 DC's, both Win 2012. The local DC works fine, but the remote DC has a growing list of problems due to frequent power outages (and improper shutdown). I would like to take ...
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53 views

Promotion Windows Server 2019 to domain controller takes a week?

Setup first: I had a Windows Server 2008 domain for testing. The PDC died a horrible death, I was able to seize most FSMO roles (but not all) and drop them on another DC, but missed the RID Master ...
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81 views

Unable to remove password requirements for domain users group

I have little children (age 4 and 5) logging in to domain computers who need passwords as simple as "123". I have done everything I can imagine to remove password requirements for them ...
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How to let a non 'Administrator' user define a GPO in a Samba DC

I tried several times unsuccessfully to define a GPO in my Samba DC through RSAT "Group Policy Management" using the administrator account "adam1". "adam1" is a member of ...
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32 views

New to Server 2019 - Is my domain computer communicating with my Domain Controller?

So I'm very new to Server 2019 and Active directory. No previous experience with any other server OS either. I have set up 2 VM's on Hyper V. Server 2019 and a Windows 10 Pro. I have installed Active ...
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28 views

SSL on Domain Contollers

Our internal and external domain is the same - domain.com, and for the internal users to be able to reach our website hosted externally, we installed IIS with redirection on all DCs. So when internal ...
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44 views

Joining Server 2008 Standard with AD LDS to Server 2019 AD DS with Domain Function Level 2008

So I have set up a New DC Server 2019 Datacenter with AD DS role installed and configured, accounts have been created for all users in the office, and a few are left to loin the Domain. One of my ...
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124 views

Error while replicating to RODC

Good day! Faced such a problem. There are 3 sites in the domain, each with one domain controller. 2 RW controllers and one read only. All DCs - server 2016. Domain and forest level - 2012R2. On a read ...
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Workstations lose connection to network shares and need to be rebooted in order to reconnect to shared resources

I have a situation where workstations will lose the connection to network shares and printers during the night and have to be rebooted in order to reconnect, afterwards everything works correctly, ...
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65 views

Why does svchost.exe gradually consume more and more CPU on a Server 2016 Domain Controller?

We have a physical server that is running Windows Server 2016 and is acting as a domain controller. We are monitoring several services/parameters on this server via Nagios/Check MK and are noticing ...
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1answer
26 views

DC Demote left behind NTDS for the DC in Sites and Services. How can I fix this?

Recently demoted a RODC using the demote wizard with no issues or errors. The DC is now a member server and was removed from the DC's OU. There is still an entry for it in Sites and Services however, ...
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1answer
52 views

Adding a UPN, when I log in using that UPN it doesn't use the same profile

I added a UPN to our AD Domain and to test I logged in using the new UPN as my user. Unfortunately, this for some reason used a new profile and I lost all of the bookmarks, cookies, settings, etc that ...
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1answer
308 views

DC Replication Broken - RC4

We recently changed the Group Policy setting "Network security: Configure encryption types allowed for Kerberos" to only include AES-128, AES-256, and Future Encryption types, removing the ...
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3answers
84 views

Migrating Domain Controller from Windows 2003 SBS

I'm trying to migrate DC from Windows Server 2003 SBS to Windows Server 2016. Problems begin when I try to promote Server 2016 to domain controller. I get the following error message on 'Prerequisites ...
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47 views

DC doesn't answer DNS queries from its address. It does answer from loopback

Both of our domain controllers stopped responding to DNS requests. After quite a lot of troubleshooting, we found that it resolves DNS requests to its loopback address, but not to its own address. ...
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Group Policy Error/DC Issues

We've got an issue in our domain environment with 2 of our On-Prem DCs (including primary DC) missing content in the SYSVOL folder. Current Setup with missing folders Correct Domain Folder Content Our ...
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39 views

Server Running Remote Desktop License Server cannot issue RD license to itself?

Relative newbie here, please be patient. This question is similar to this, and this, and particularly to this, but I don't have enough expertise to tell if it is identical, and for the third one the ...
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578 views

Windows clients not able to join to a domain hosted by qnap nas

I am pretty new in networking and I bumped into a challenge that I am not able to solve for three days. What I would like to achieve is to join a windows server (windows server 2016) and Windows 10 ...

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