XenDesktop 4 Licensing FAQ - Citrix Knowledge Center

Licensing FAQ | XenDesktop 4
License Management
Q: How do I license XenDesktop 4 environments in compliance with the
XenDesktop 4 EULA?
A: Licensing XenDesktop 4 in a compliant manner will depend on which license model and edition
you have purchased.
To deploy XenDesktop 4 under the user license model in compliance with the XenDesktop 4 EULA,
you must use your directory services infrastructure (such as OU in Microsoft Active Directory) to
demarcate the XenDesktop 4 licensed user community. Note that licenses must be assigned on
permanent basis to all users identified in this group.
To deploy XenDesktop 4 under the device license model in compliance with the XenDesktop 4
EULA, you must assign a unique device identity to a device log for ALL devices licensed to access a
XenDesktop 4 environment, regardless of whether or not the device is being used at any given time.
Your device log is a manually created and edited file. A device is defined as any piece of equipment
authorized by you to be used by any individual(s) to access instances of XenDesktop 4 through your
assignment of the device identity to the device log.
To deploy XenDesktop 4 under the concurrent user license model in compliance with the
XenDesktop 4 EULA, you need only apply the licenses to your license server. License consumption in
a concurrent user license model is anonymous and licenses are delivered on a first come first served
basis until ALL licenses are checked out an no more anonymous connections can be supported
without the purchase and deployment of additional licenses to the license server.
Q: Does XenDesktop 4 licensing use my directory services infrastructure?
A: Yes, for the user licensing model only. XenDesktop 4 leverages directory services (such as OU in
Microsoft Active Directory) user groups to demarcate licensed users.
Q: What TCP ports are used for Citrix Licensing?
A: The License Server uses port 27000 and the Vendor Daemon uses port 7279.
Q: What is the Citrix License Server?
A: The Citrix License Server is a system that allows licenses to be shared across the network.
Q: Can I virtualize the Citrix License Server?
A: Yes.
Q: What benefits are available to me if I virtualize the Citrix License Server?
A: If you virtualize the Citrix License Server, you get a redundancy solution that allows mobility
between multiple physical servers without the need for down time.
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