Microsoft Active Directory (AD) and Azure Active Directory (Azure AD) are two popular identity and access management solutions. Microsoft AD is a on-premises solution that allows organizations to manage and secure their network resources.
Azure AD, on the other hand, is a cloud-based solution that provides a more scalable and flexible way to manage identities and access. With Azure AD, users can access cloud-based applications and resources from anywhere.
One key difference between the two is that Microsoft AD requires a significant upfront investment in hardware and maintenance, whereas Azure AD is a subscription-based service that can be scaled up or down as needed.
What Is Microsoft Azure AD
Microsoft Azure AD is a cloud-based service for identity and access management (IAM). It's a secure online authentication store for individual user profiles and groups of user profiles.
Azure AD falls into the identity as a service (IDaaS) category and is intended for managing access to cloud-based applications and servers that use modern authentication protocols. These protocols include SAML 2.0, OpenID Connect, OAuth 2.0, and WS-Federation.
Azure AD manages access through user accounts, which carry a username and a password. Users can be organized into different groups, which can be granted different access privileges for individual applications.
Azure AD uses Single-Sign On (SSO) to connect users to Software as a Service (SaaS) applications. This allows each user to access the full suite of applications they have permission for, without having to repeatedly log in each time.
Here are some key features of Azure AD:
- Manages user accounts and groups
- Grants access privileges for individual applications
- Uses SSO to connect users to SaaS applications
- Creates access tokens with expiration dates
- Requires multifactor authentication (MFA) for important business resources
Azure AD vs On-Premise
Azure AD is a cloud-based identity and access management solution, whereas On-Premise refers to traditional, self-hosted identity management systems.
With Azure AD, you can manage user identities and access across multiple applications and devices from a single platform. Azure AD supports over 2,000 pre-integrated applications, including popular services like Office 365 and Salesforce.
On the other hand, On-Premise identity management systems require manual configuration and maintenance, which can be time-consuming and costly. On-Premise solutions are typically limited to managing identities within a single organization.
One key advantage of Azure AD is its scalability, which allows it to handle large volumes of users and applications with ease. Azure AD also provides advanced security features, such as multi-factor authentication and conditional access.
In contrast, On-Premise identity management systems can become outdated and vulnerable to security threats if not properly maintained. On-Premise solutions also require dedicated hardware and IT resources, which can be a significant investment for organizations.
Security and Management
On-premises Active Directory provides a high level of security by processing all authentication and authorization requests within the organization's network, reducing the risk of unauthorized access.
Security features in both AD and Azure AD are strong, but geared towards different environments. AD provides robust security for on-premises networks through Group Policy, Role-Based Access Control (RBAC), and integration with Windows Server.
Azure AD, on the other hand, offers modern security features like Multi-Factor Authentication (MFA) and Conditional Access, which are essential for securing cloud environments. Azure AD also includes machine learning-driven threat detection and response capabilities to protect against identity-based attacks.
Here's a comparison of the security features in AD and Azure AD:
Azure AD's security features, including MFA and Conditional Access, make it superior for cloud security, while AD remains highly secure for internal networks.
Security Requirements
On-premises Active Directory provides a high level of security by processing all authentication and authorization requests within the organization's network, reducing the risk of unauthorized access.
Both AD and Azure AD offer strong security features, but they're geared toward different environments. AD is highly secure for internal networks, while Azure AD is superior for cloud security.
AD provides robust security through Group Policy, Role-Based Access Control (RBAC), and integration with Windows Server. This makes it a reliable choice for organizations with on-premises networks.
Azure AD, on the other hand, offers modern security features like Multi-Factor Authentication (MFA) and Conditional Access, which are essential for securing cloud environments.
Here's a comparison of the security features offered by AD and Azure AD:
Azure AD contains a number of features to secure and protect organizational data, including MFA, SSO for cloud-based SaaS applications, context-based adaptive policies, Identity governance, and an application proxy to secure remote access.
Management
Managing your organization's security and management needs requires a clear understanding of your options. On-Premise Active Directory is managed by the organization’s IT department.
Azure Active Directory, on the other hand, is managed by Microsoft. This is a significant difference that can impact your organization's day-to-day operations.
Rights Management Services
Rights Management Services play a crucial role in data protection. ADRMS, or Active Directory Rights Management Services, is a security tool that helps administrators manage user identities and access to services.
Azure AD simplifies the process by integrating five layers into two. This makes it easier for administrators to manage user identities and services.
One of the key benefits of Azure AD is that it eliminates the need for a large number of layers. This reduces complexity and makes it easier to manage user identities and access to services.
Here are the two layers that Azure AD integrates:
This layer combines all the problems related to identity management.
This layer enables the federation or division of all these services of an organization.
For example, Office 365 uses Azure AD to manage user identities. This means administrators only need to provide a single username and password for users to access services like Excel, PowerPoint, or Microsoft Word.
Application Access
Application access is a crucial aspect of security and management. Active Directory is a great tool for managing access to on-prem applications and services, such as legacy systems and internal web applications.
For cloud-based applications, Azure AD is the way to go. It offers Single Sign-On (SSO) to cloud apps and simplifies access management for services like Microsoft 365 and Google Workspace.
If your business predominantly uses cloud apps, Azure AD is a clear choice. However, if your applications are mostly hosted on-premises, Active Directory is better suited.
To give you a better idea, here are some examples of applications that each is well-suited for:
- Active Directory: legacy systems, file servers, internal web applications
- Azure AD: cloud apps, Microsoft 365, Google Workspace, other SaaS platforms
Frequently Asked Questions
Is Azure AD discontinued?
Azure AD will no longer be supported after March 30, 2024, but you can migrate to Microsoft Graph PowerShell SDK for continued support.
Is Active Directory the same as Azure AD?
No, Active Directory and Azure AD are not the same, as one is an on-premises service requiring self-management and the other is a cloud-hosted service provided by Microsoft. Learn more about the key differences between these two identity management solutions.
Sources
- https://techcommunity.microsoft.com/discussions/azure-active-directory/active-directory-vs-azure-active-directory/3849338
- https://www.windows-active-directory.com/difference-between-on-premise-active-directory-and-azure-active-directory.html
- https://www.electronicshub.org/active-directory-vs-azure-active-directory/
- https://www.techtarget.com/searchwindowsserver/definition/Microsoft-Windows-Azure-Active-Directory-Windows-Azure-AD
- https://www.simplilearn.com/tutorials/azure-tutorial/azure-active-directory
Featured Images: pexels.com