Active Directory: Core Concepts, Architecture and Best Practices

In this GPO troubleshooting guide, I’ll try to tell you about the typical reasons why a certain Group Policy Object (GPO) might not apply to an organizational unit (OU) or…

The GPResult.exe command-line tool is used to get a Resultant Set of Policy (RSoP) that is applied to a user and/or computer in an Active Directory domain. GPResult allows you…

SID (Security IDentifier) is a unique identifier that is assigned to users, groups, computers, or other security objects when they are created in Windows or Active Directory domain. Windows uses…

The Get-ADUser PowerShell cmdlet allows you to get information about an Active Directory user, its attributes, and search among domain users. It is one of the more popular PowerShell cmdlets…

In this article, we’ll look at what UPN (UserPrincipalName) suffixes in Active Directory are, how to add alternative suffixes in an AD forest and change UPN suffixes of Active Directory…

If you manage a large number of servers or workstations running Windows, sometimes it is useful to display basic information about the operating system and environment right on the Windows…

In this article, we’ll show how to enable DNS logging for all user queries on a DNS server running Windows Server, how to parse and analyze DNS logs. I faced…

The read-only domain controller (RODC) feature was first introduced in Windows Server 2008. The main purpose of the RODC is the secure installation of the own domain controller in remote…

The task of searching for objects in Active Directory (users, groups, or computers) by name using some pattern, regular expression, or wildcard is not as obvious as it seems. The…

In this short article, we will show you how to properly change an Active Directory domain name from test.com to resource.loc. In fact, it is not the best idea to…