Flexible Single Master Operations (FSMO) is a special type of operation performed by Active Directory domain controllers that requires a DC server to be unique in a domain or forest.…
Active Directory
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A user account in Active Directory is locked out if the password is typed incorrectly several times in a row and exceeds the maximum number allowed by the account’s password…
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The Flexible Single Master Operations (FSMO) roles are critical components of an Active Directory domain controller. They are responsible for managing various operations within the domain, including creating and deleting…
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The DCPROMO (Domain Controller Promoter) console utility is used on Windows Server to install the Active Directory Domain Services (ADDS) role, promoting a member server to the AD domain controller…
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To keep your Active Directory in the best shape, you should periodically check the replication between domain controllers using the repadmin and dcdiag tools. The repadmin command line tool can…
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In this article, we’ll look at why it’s impossible to join a new computer to the Active Directory domain with an error Active Directory Domain Controller could not be contacted.…
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Managing privileged groups is one of the most important tasks of an Active Directory administrator. Privileged AD groups have a set of privileges that allow them to perform almost any…
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The ADSI Edit tool (Active Directory Service Interface Editor) is a special mmc snap-in. It allows you to connect to various Active Directory database partitions (NTDS.dit) or to the LDAP…
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User accounts in Active Directory have various attributes, among which there are two interesting and critical attributes: samAccountName and UserPrincipalName (usually it is called UPN), the differences between which are not understood by many…
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UserPrincipalName (UPN) in Active Directory is the domain login username in the format of the e-mail address. For example, jbrion@contoso.com. In this example, jbrion is the user’s domain login and…
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