Active Directory (AD) is a comprehensive system that provides authentication and authorization of users, computers, and other resources in a domain environment. It can track user access to the network and manage shared resources such as applications, files, printers, and databases.

Active directory functions also allow for better control over security settings for users and devices on the network.

Take a look at some of the most important functions

  1. User Authentication: One of the primary functions of AD is to authenticate users who are trying to log into the network with their usernames and password. This authentication process ensures that only authorized users have access to your network systems and data.

The authentication process also allows administrators to set specific permissions for different users, ensuring that each user has access only to the information they need.

  1. Group Policy Management: AD allows administrators to apply different sets of policies or rules to groups of users or computers within a domain environment. This makes it easier to keep track of who has access to what resources on the network.

An administrator may want all members of a certain group to have access to a certain file or application, but not all members of the organization may need this access. With group policy management in AD, administrators can easily grant or deny access based on certain criteria without having to manually manage each individual account’s permissions.

  1. Centralized Administration: This makes it much easier for administrators to maintain control over their systems as well as implement changes quickly across multiple domains if necessary.

Furthermore, AD helps reduce costs by allowing organizations to use fewer resources when managing their networks since all administrative tasks can be managed from one central location instead of having multiple IT personnel managing different parts of a large system separately.

  1. Security Enhancements: With AD, you can create strong passwords for user accounts as well as encrypt data stored on servers so that unauthorized users cannot gain access even if they do get past your initial security measures, such as firewalls or antivirus software.

You can enable two-factor authentication, which requires additional forms of verification before granting someone access, such as an SMS code sent directly from an administrator’s smartphone or an email containing a temporary link that must be clicked in order for someone’s account credentials to be accepted.


An active Directory is an essential tool for managing any type of domain environment efficiently and securely without compromising user experience or functionality.