How to Enable TLS 1.2 on ADFS – Windows Server 2012 R2
From August 2019, Zoom will cease to support the Transport Layer Security (TLS) 1.0 and 1.1 protocols as well as disable the use of them. We have now moved to using TLS 1.2+ for our web services. In light of this change, ADFS users with TLS 1.1 and below will not be able to download single sign-on metadata because they will be unable to download our SAML metadata:
Zoom’s Service Provider Entity status will continue to function as intended until an organization that still uses TLS 1.1 or lower, enables TLS 1.2 to be able to use Zoom.
Prerequisites for enabling TLS 1.2 on an ADFS Server (Windows Server 2021 R2)
- In order for ADFS to function properly, the ADFS server must have a .NET Framework version greater than 4.6.2:
- Checking the .NET Framework version
- by downloading the .NET Framework
- Microsoft requires at least version 6.3.9600.17031 of the Hardware Abstraction Layer (HAL) for Windows Server 2012
- Use the “Run as administrator” option to launch Windows PowerShell
- In order for your ADFS client to be able to run TLS 1.2, run the following commands:
New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client' -Force | Out-Null
New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client' -name 'Enabled' -value '1' -PropertyType 'DWord' -Force | Out-Null
New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client' -name 'DisabledByDefault' -value 0 -PropertyType 'DWord' -Force | Out-Null
Write-Host 'TLS 1.2 has been enabled.'
- To enable Strong Authentication, you need to run the following commands:
New-ItemProperty -path 'HKLM:\SOFTWARE\Microsoft\.NetFramework\v4.0.30319' -name 'SchUseStrongCrypto' -value '1' -PropertyType 'DWord' -Force | Out-Null
- The following commands can be used to disable SSL 3.0 on the ADFS client if you want to do it.
New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Client' -Force | Out-Null
New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Client' -name 'Enabled' -value '0' -PropertyType 'DWord' -Force | Out-Null
New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Client' -name 'DisabledByDefault' -value 1 -PropertyType 'DWord' -Force | Out-Null
Write-Host 'SSL 3.0 has been disabled.'
- The solution is to close all management windows of the ADFS server, then reopen the management console, and then try to import the metadata again.
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Frequently Asked Questions
What is TLS in Zoom?
We use one of the following methods to encrypt data in the cloud while it is in transit. The TLS protocol. Whenever a Zoom client and Zoom’s cloud are connected, HTTPS is the preferred means of communication between the client and the cloud. A trusted commercial certificate authority issues certificates using PKI encryption based on TLS 1.2 and these connections use TLS 1.2 encryption.
How do I setup a Zoom server?
Install the Zoom package on your computer
Click on the following link to download zoom-server-win64. You can download the zip file from the Evolphin Support Portal website.
The zoom-server-win64 file can be opened by double clicking on it. Once you have unzipped the file, navigate to the folder on the server.
Setup.exe should be opened.
In order to install Zoom, you need to follow the instructions provided by the wizard.
It is recommended that you choose Yes when you are prompted to restart the computer.
Does Windows XP work with Zoom?
There seems to be no mention of Windows XP in our system requirements as a supported version for Zoom desktop clients. This is unfortunate.
Will Windows 11 support Zoom?
Note: It is recommended that you use version 5.9.0 or higher in order to support Windows 11. IMPORTANT: In order to run Windows 10 on a device, the device must run either Windows 10 Home, Pro, or Enterprise. It is not possible to use S Mode on this device.