ESA components and OS compatibility

The following table displays the supported Windows operating systems for each ESET Secure Authentication On-Prem component.

See installation requirements for further details.

Server operating systems

	Windows Server 2008	Windows Server 2008 R2	Windows Server 2012	Windows Server 2012 R2	Windows SBS 2008	Windows SBS 2011	Windows Server 2012 Essentials	Windows Server 2012 R2 Essentials	Windows Server 2016	Windows Server 2016 Essentials	Windows Server 2019	Windows Server 2019 Essentials	Windows Server 2022
Authentication Server	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
Management Tools	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
Reporting Engine (Elasticsearch)	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
RADIUS Server	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
Web App Plug-in for Microsoft Exchange Server	✔*	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
Web App Plug-in for Microsoft SharePoint Server			✔	✔		✔	✔	✔	✔	✔	✔	✔	✔
Web App Plug-in for Microsoft Dynamics CRM			✔	✔		✔	✔	✔	✔	✔	✔	✔	✔
Web App Plug-in for Microsoft Remote Desktop Services Web Access	✔**	✔	✔	✔		✔	✔	✔	✔	✔	✔	✔	✔
Web App Plug-in for Microsoft Remote Web Access					✔	✔	✔	✔		✔
Remote Desktop Protection		✔	✔	✔		✔	✔	✔	✔	✔	✔	✔	✔
Windows login protection		✔	✔	✔		✔	✔	✔	✔	✔	✔	✔	✔
AD FS				✔			✔	✔	✔	✔	✔	✔	✔
Identity Provider Connector		✔	✔	✔		✔	✔	✔	✔	✔	✔	✔	✔

* 64-bit version of the operating system is required

** Microsoft Terminal Services on Windows Server 2008

Client operating systems

	Windows 7	Windows 8	Windows 8.1	Windows 10	Windows 11
Authentication Server	✔	✔	✔	✔	✔
Management Tools	✔	✔	✔	✔	✔
Reporting Engine (Elasticsearch)	✔	✔	✔	✔	✔
RADIUS Server	✔	✔	✔	✔	✔
Web App Plug-in for Microsoft Exchange Server *
Web App Plug-in for Microsoft SharePoint Server *
Web App Plug-in for Microsoft Dynamics CRM
Web App Plug-in for Microsoft Terminal Services Web Access
Web App Plug-in for Microsoft Remote Desktop Services Web Access
Web App Plug-in for Microsoft Remote Web Access
Remote Desktop Protection*	✔	✔	✔	✔	✔
Windows login protection	✔	✔	✔	✔	✔
AD FS
Identity Provider Connector	✔	✔	✔	✔	✔

* 64-bit version of the operating system is required

RADIUS Server on Windows Small Business Server

When you install a RADIUS Server on Windows Small Business Server 2008 or 2011, change the default NPS port from 1812 to 1645. Verify that no processes are listening on port 1812 before installing ESA by running the following command: C:\> netstat -a -p udp | more

Alternatively, when installing ESA RADIUS, change the RADIUS port in the Advanced configuration screen.

ESA Core and RADIUS on a client operating system (client OS)

Installing ESA Core (Authentication Server) and RADIUS Server on a client OS in the list of Supported Operating Systems might not be in alignment with Microsoft's licensing policy. Consult Microsoft's licensing policy or your software supplier for details. Moreover, a client OS may present other limitations (for instance, the number of maximum concurrent TCP connections) compared to an server OS.

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