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Tag: Domain Controller

How to Create a Child and Tree Domain

Posted on 02/11/202404/11/2024 Temitope Odemo By Temitope Odemo No Comments on How to Create a Child and Tree Domain
How to Create a Child and Tree Domain

In this article, I will show you How to create a Child and tree Domain using the steps below. A child domain is a subdomain of the parent domain. In the active directory hierarchical structure, the function of the child domain is the segmentation of the active directory into smaller parts or segments. For Example,…

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Windows Server

How to add a new Domain Controller to an Existing Domain

Posted on 19/07/202416/09/2025 Christian By Christian No Comments on How to add a new Domain Controller to an Existing Domain
How to add a new Domain Controller to an Existing Domain

A domain controller (DC) provides critical services like authentication and authorization for an Active Directory domain. More accurately, a DC runs on Windows Server operating system and that has Active Directory Domain Services (AD DS) installed on it. All these we will see very shortly. In this guide, we will learn how to how to…

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Windows Server

Setup a Domain Controller as Recommended by Microsoft

Posted on 07/03/202419/08/2025 Christian By Christian No Comments on Setup a Domain Controller as Recommended by Microsoft
Setup a Domain Controller as Recommended by Microsoft

A Domain Controller (DC) responds to authentication requests. It has an hierarchical structure called domains. In this article, I will be discussing how to Setup a Domain Controller as Recommended by Microsoft in HyperV. Please see Pleasant User Group Permission and User Access, Domain Name System Protocol: Client Registration Issue, Domain Name System: How to…

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Windows Server

How To Configure a Domain Password Policy

Posted on 30/10/202201/12/2023 Temitope Odemo By Temitope Odemo No Comments on How To Configure a Domain Password Policy
How To Configure a Domain Password Policy

Microsoft Active Directory always comes with a default domain password that defines the password requirements like length, age, characters, and many more. This password policy is configured and linked to the root of the domain and affects every user on the domain. This guide is going to show you how you can change that default value…

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Windows, Windows Server

How to demote and remove a Domain Controller on Windows Servers

Posted on 27/08/202215/10/2024 Temitope Odemo By Temitope Odemo No Comments on How to demote and remove a Domain Controller on Windows Servers
How to demote and remove a Domain Controller on Windows Servers

In this article, you will learn how to demote and remove a Domain Controller on Windows Servers. According to techdirectarchive a domain controller (DC) is a server computer that responds to authentication requests. It participates in the replication and contains a complete copy of all directory information for its domain. If you want to know…

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Windows Server

Create and Delete AD DS Partition with NTDSUTIL.EXE

Posted on 26/01/202209/04/2024 Imoh Etuk By Imoh Etuk No Comments on Create and Delete AD DS Partition with NTDSUTIL.EXE
Create and Delete AD DS Partition with NTDSUTIL.EXE

AD DS partition Windows Server serves as a platform for building and deploying infrastructure within the corporate environment. This infrastructure deployment usually consists of applications, networks, user accounts, and web services. In this article, we shall learn Create and Delete AD DS Partition with NTDSUTIL.EXE. Ntdsutil.exe is a command-line tool that provides management facilities for…

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Windows Server

How to fix this computer is a domain controller: The snap-in cannot be used on a domain controller

Posted on 06/10/202126/05/2023 Christian By Christian No Comments on How to fix this computer is a domain controller: The snap-in cannot be used on a domain controller
How to fix this computer is a domain controller: The snap-in cannot be used on a domain controller

Remote Desktop Protocol (RDP) is a special network protocol that allows a user to establish a connection between two computers. For every connection made to a remote PC, the RDP client in Windows (mstsc.exe) saves the computer name or an IP Address and also the username used to log on. See the following guide on…

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Windows Server

PetitPotam attack on Active Directory Certificate Services: How to mitigate NTLM Relay PetitPotam attack on AD CS

Posted on 28/07/202104/01/2024 Christian By Christian No Comments on PetitPotam attack on Active Directory Certificate Services: How to mitigate NTLM Relay PetitPotam attack on AD CS
PetitPotam attack on  Active Directory Certificate Services: How to mitigate NTLM Relay PetitPotam attack on AD CS

In this guide, we will discuss “PetitPotam attack on AD Certificate Services: mitigate NTLM”. Recently, Lionel Gilles, a French-based Offensive Computer Security researcher based in Paris, France published a PoC tool on NTLM Relay Attacks known as PetitPotam that exploits the MS-EFSRPC (Encrypting File Services Remote Protocol). Here is an example of such documents: NT LAN Manager:…

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Security | Vulnerability Scans and Assessment

Windows Cached Credentials: How does cached domain logon work?

Posted on 09/10/202003/09/2023 Christian By Christian 4 Comments on Windows Cached Credentials: How does cached domain logon work?
Windows Cached Credentials: How does cached domain logon work?

This article discusses how credentials are formed in Windows and how they are being consumed by the Operating System. Before proceeding, let us discuss some key terms. If a user or service wants to access a computing resource, they must provide information that proves their identity. This identity is typically in the form of their…

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Windows

Sign-In Method Not Allowed: Contact Network Administrator

Posted on 28/07/202025/09/2024 Dickson Victor By Dickson Victor 4 Comments on Sign-In Method Not Allowed: Contact Network Administrator
Sign-In Method Not Allowed: Contact Network Administrator

In this article, we shall discuss the fix to “The sign-in method you are trying to use is not allowed: For more information, contact your network administrator”. This error is a little bit self-explanatory. Please see How to create a contact in Active Directory, and How to Lock the Find My Device Option in Windows…

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Windows Server

How to fix “Unable to Sign In: Domain Not Available”

Posted on 28/07/202025/09/2024 Christian By Christian No Comments on How to fix “Unable to Sign In: Domain Not Available”
How to fix “Unable to Sign In: Domain Not Available”

When this error message pops up, users are unable to sign-in to their devices in the domain. “We can’t sign you with this credential because your domain isn’t available. Make sure your device is connected to your organization’s network and try again. If you previously signed in on this device with another credential, you can…

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Windows Server

Fix the following error occurred when DNS was queried for the service location

Posted on 28/07/202024/04/2023 Christian By Christian No Comments on Fix the following error occurred when DNS was queried for the service location
Fix the following error occurred when DNS was queried for the service location

A DNS query (also known as a DNS request) is a demand for information sent from a user’s computer (DNS client) to a DNS server. When prompted with the following error as shown below. In this guide, I will show you how to fix “the following error occurred when DNS was queried for the service…

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Windows Server

The following errors occurred attempting to join the domain: The specified domain either does not exist or could not be contacted

Posted on 28/07/202024/09/2024 Christian By Christian No Comments on The following errors occurred attempting to join the domain: The specified domain either does not exist or could not be contacted
The following errors occurred attempting to join the domain: The specified domain either does not exist or could not be contacted

In this article, you will learn how to fix “The following errors occurred attempting to join the domain: The specified domain either does not exist or could not be contacted”. An Active Directory domain is a collection of objects within a Microsoft Active Directory network. Please see how to schedule and run Windows Update via Windows Admin Center,…

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Windows Server

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  • Feature image Password protect a virtual hard disk
    Create a Password-Protected VHD Using BitLocker on Windows Windows
  • wmic4
    Security Identifier: Find User SID in Windows Windows
  • azure just in time
    How to secure access to your Virtual Machine with Just-in-Time (JIT) VM Access AWS/Azure/OpenShift
  • feature image
    How to install PostgreSQL on Ubuntu Linux
  • SUBVERSION FEATURE
    How to Install Apache Subversion on a Linux System Linux
  • fghj
    Windows Profile: How to determine your windows username Windows
  • mdm
    Delete AssignedAccess applied via MDM WMI bridge Provider Windows
  • MBAM roles
    Understanding Microsoft BitLocker Administration and Monitoring Roles Windows

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