Frequent Question: What Is Windows Server Cal License?
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A server CAL (Client Access License) is a required license that gives the right to access services from Microsoft server software. Every user or device that accesses or uses the server software requires the purchase of a Windows Server CAL.

Why do I need CALs for Windows Server?

Why do I need both? The server license gives you the right to install and use the server software. A CAL grants a user or device the right to access the server software. This structure offers license affordability to organizations of all sizes.

Do I need a user CAL for each server?

The general requirement is, any User or Device that accesses the server software, either directly or indirectly, requires a CAL. But you dont need purchase CAL for each user/computer adding to AD and you only need appropriate amout of CALs for your users or devices to use Active Directory legally.

Marcus Vance

Marcus Vance

Cybersecurity & Digital Privacy Researcher

Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.

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