In the world of IT infrastructure, ensuring proper licensing is essential. Indeed, more than ever, organizations need to maintain compliance and avoid legal issues at all costs. Client Access Licenses (CALs) are a vital part of Microsoft’s licensing framework. For organizations using Remote Desktop Services (RDS), understanding RDS CALs is something you should neverskimp on.
This blog post sheds light on RDS CALS, explain what they are, why they are needed, the differences between User and Device CALs, and their role in conjunction with Server CALs. In short, we’ll take you through the key aspects of RDS CALs and their significance in relation to remote access. Let’s get started!
What is a CAL, or Client Access License?
A Client Access License, CAL for short, allows the right for devices or users to access a server and use its services. The licenses attached to the operating system allows the OS on the server to run. These are merely Windows Server licenses. It is worth mentioning that Microsoft offers two types of CALs i.e., Device CAL and User CAL, and these apply to either local and remote use situations.
Things tend to be a bit different with RDS CALs. Remote Desktop Services (RDS) provide the ability to access a server’s desktop remotely. RDS CALs are precisely needed for remote access scenarios. Each user or device that wants to access the server remotely needs to be properly licensed with RDS CALs to ensure compliance with Microsoft’s licensing law.
It is worth mentioning that one small exception to the CAL reigns supreme. Up to a maximum of two users or devices may access the server and software without the need for extra CALs but the OS license, but on the following condition. They can access it for server administration purposes online. This is the only scenario that requires neither RDS CAL or standard CAL. No other ‘users’ are allowed under the Windows Server CAL.
Per User or Per Device CALs?
Keep in mind each Per Device CAL is assigned to a specific device, so that multiple users can access the server from that unique device. In contrast, each Per User CAL is assigned to an individual user, allowing every one of those users to access the server from any device they like. Choosing between Per User or Per Device CALs entirely depends on the organization’s remote access requirements.
Considering Per Device CALs tie the license to a specific device, it is perfectly suited to a situation where multiple users need to access the server via only one device. Given the fact Per User CALs associate each license with a given user, it grants them access from whichever of the devices they may need to use.
All in all, you should take it upon yourself to verify your Windows Serer licensing requirements before buying RDS CALs. Moreover, you should go for newer CAL versions for maximum compatibility and always document your CAL Purchases clearly. Clarify with your vendor before installing.
