Active Directory FundamentalsRecent Posts

How to change the IP address of a domain controller

The domain controller (DC) is an integral part of your IT infrastructure. Due to its role within the domain, it’s crucial that any change to its IP is done correctly. The DC’s address is statically assigned to the server. However, you might be required to change the DC’s IP address at times—when there’s a change of the IP addressing scheme on the local subnet, for…
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Active Directory Fundamentals

Active Directory LDAP Field - Attribute Mappings   

While accessing Active Directory users and computers (ADUC), it can be observed that Microsoft has used user-friendly names for the input fields. These fields are mapped to the LDAP (Lightweight Directory Access Protocol) attributes. You can access the hidden tab within the ADUC which will list all the attributes and their respective values. The reason for understanding and learning about these…
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Active Directory Fundamentals

How to seize FSMO roles

It is a reasonably simple operation to move one or more FSMO roles from one Domain Controller to another. However, given that all DCs are functioning properly and are online. Learn more about FSMO roles here. What occurs if a DC that is currently performing an FSMO role crashes or shuts down for an extended period of time? Due to the server being offline, FSMO role transfer cannot be…
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Active Directory Fundamentals

How to transfer FSMO roles

What is FSMO? A flexible single-master operation (FSMO) is a set of AD (Active Directory) operations or roles designed to help eliminate replication conflicts. FSMO is used when standard data transfer and update methods are inadequate in a specialized domain. Single-master model Updates to specific objects in the Active Directory are made in a single-master method to avoid conflicting…
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Active Directory Fundamentals

Securing administrator accounts in Active Directory

Administrator accounts are the most critical and powerful accounts in operating systems, devices, and Active Directory. Administrator accounts have complete access to all the files, domains, and services on a local server. They are used to create or delete users, designate user rights, and control permissions on a server. An administrator account is the number one target for any…
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Active Directory Fundamentals

How to install the PowerShell Active Directory module

The Active Directory PowerShell module is part of the Remote Server Administration Tools (RSAT) in all Windows Operating Systems.It is a set of PowerShell cmdlets that imparts flexibility in managing Active Directory. While AD management is possible using the native GUI-based tools like Active Directory Users and Computers console, installing the Windows Active Directory PowerShell Module…
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Active Directory Fundamentals

How to resolve an Active Directory lockout issue

Account lockouts are the biggest problem experienced by Active Directory (AD) users. They also account for the highest number of calls to IT support. Apart from users forgetting their login credentials, using a system that hasn’t been updated with new credentials is the major reason for AD account lockouts. Let’s take a look at some of the reasons that an AD account might be locked…
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Active Directory Fundamentals

The OSI model: What it is and how you can use it

Developed by the International Organization for Standardization (ISO) in 1984 when network computing was at its nascent stage, the Open Systems Interconnection (OSI) model is the visual representation of how information interacts with different mediums—hardware and software components—within a network. OSI is a framework for vendors to standardize the interoperability between devices and…
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Active Directory Fundamentals

Managing shared resources

Introduction When sharing resources in a common network, the biggest concern is delegating access levels to those resources. Permissions management is a critical security process since any pitfalls can make the organizations prone to data breaches. For example, consider a scenario where a new sales employee joins an organization. They need to be provided with access to things like sales…
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Active Directory Fundamentals

  Integrating AD with LDAP 

Introduction  Active Directory (AD) is a directory service that stores information about objects on the network in a logical and hierarchical manner. Administrators control and manage access to network resources based on the permissions assigned to the AD user role. Lightweight Directory Access Protocol (LDAP) is a simplified version of the Directory Access Protocol (DAP). LDAP’s primary…
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