Analyst

R Smith

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Thanks to both. &nbsp;The article did help explain more about ADFS versions.
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Thanks to both.  The article did help explain more about ADFS versions.

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I am currently running AD on 2012r2 with the functional level at 2012r2.<br />
Our ADFS is currently running on 2016 with a farm behavior level of 3.<br />
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I am unsure what level the ADFS actually is. &nbsp;Is it actually considered version 4?<br />
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This is coming from and attempted install of LastPass ADFS connection. &nbsp;<br />
<br />
They provide a piece of software to run on the ADFS server to allow the federated connection. <br />
They provide two version one from server 3 and one for server 4 depending on your ADFS level.<br />
<br />
Can you run level 4 ADFS in an AD 2012r2 environment?
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I am currently running AD on 2012r2 with the functional level at 2012r2.
Our ADFS is currently running on 2016 with a farm behavior level of 3.

I am unsure what level the ADFS actually is.  Is it actually considered version 4?

This is coming from and attempted install of LastPass ADFS connection.  

They provide a piece of software to run on the ADFS server to allow the federated connection. 
They provide two version one from server 3 and one for server 4 depending on your ADFS level.

Can you run level 4 ADFS in an AD 2012r2 environment?

Microsoft ADFS and AD

Software is any set of instructions that directs a computer to perform specific tasks or operations. Computer software consists of programs, libraries and related non-executable data (such as documentation). Computer software is non-tangible, contrasted with computer hardware, which is the physical component of computers. Software written in a machine language is known as "machine code". However, in practice, software is usually written in high-level programming languages than machine language. High-level languages are translated into machine language using a compiler or interpreter or a combination of the two.

Software

Installation is the act of making a computer program program ready for execution. Because the process varies programs often come with a specialized program responsible for doing whatever is needed for their installation. Installation may be part of a larger software deployment process. Cross platform installer builders that produce installers for Windows, Mac OS X and Linux include InstallAnywhere, InstallBuilder and Install4J. Installers for Microsoft Windows include Windows Installer, InstallShield, and Wise Installation Studio; free installer-authoring tools include NSIS, IzPack, Clickteam, InnoSetup, InstallSimple and WiX. Mac OS X includes Installer, and also includes a separate software updating application.

Installation

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.

Microsoft Server OS

Active Directory Federation Services (ADFS)

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.