2/18/2023 0 Comments Microsoft remote desktop license![]() Whilst both modes can be tracked to provide CAL reporting, only Per Device is strictly enforced. One of the biggest differences between Per Device and Per User licensing lies around tracking and enforcement. Notice the last entry in the above table this is often overlooked within large mission critical production environments with only one active License Server, presenting itself as a single point of failure (addressed later). Temporary CALs assigned on first logon are valid for 90 daysįull CALs remain valid for 52-89 days at randomĬALs are valid for 60 days before renewalĬALs can be over allocated (in breach of the End User License Agreement)Īn offline License Server issuing Per Device CALs can (under specific conditions) prevent users logging into an RD deploymentĪn offline License Server issuing Per User CALs will not prevent users from logging on Up to 20% of CALs can be revoked on demand That said, there are a number of distinctions between these two licensing modes that may also play a part in this decision process that System Administrators should also be aware of: Per DeviceĬALs are physically assigned to each client device, marked within the registryĬALs are assigned to a user’s properties within Active Directory (where a Server 2008 AD infrastructure exists)ĬALs can be tracked but not strictly enforced.ĬALs can be tracked regardless of AD membershipĬALs cannot be tracked within a workgroup Users share a single client device for example. which is less the number of users connecting to an RD deployment or the number of client devices? This becomes particularly relevant in situations where one user may log onto multiple client machines, or multiple Keeping things simple licenses cost money, so choosing the model that has the least financial impact One of the first and most significant decisions an IT admin is faced with when setting up a Remote Desktop infrastructure is which mode they should use. A single RDSH can only accommodate one mode of licensing at a time. ![]() Per User licensing is used to allocate a CAL to each user connecting to an RD deployment (where an Active Directory infrastructure exists). Per Device is used to allocate a Client Access License (CAL) to each client device accessing an RD deployment, including VDI infrastructure. RD Licensing is primarily deployed in one of two flavours Per Device or Per User. RD Licensing (previously Terminal Services) has undergone many iterations of changes since its original inception back in NT4, much of which is no longer relevant to the current supported editions of Windows Server. With the helpful collaboration of our Escalation Engineers and the Product Group, this article aims to throw light on RD Licensing in a way that helps an organisation make informed decisions on how best to configure a Remote Desktop environment in the mostĬost effective and resilient way possible.īefore progressing any further, bear in mind that the information provided here applies specifically to Remote Desktop Services i.e. ![]() For many years however this subject matter has remainedĪ source of misinterpretation amongst both customers and Microsoft engineers alike, fuelling the publication of misguided information that only further detracts from understanding the true underlying mechanics at work. Love it or hate it, Remote Desktop Licensing (RD Licensing) remains a core responsibility for IT admins to maintain operational efficiency and legal compliance for any given Remote Desktop infrastructure.
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