Adfs How Long Until I Have to Log in Again
I am doing a number of ADFS to Azure AD based authentication projects, where hallmark is moved to Countersign Hash Sync + SSO or Pass Through Auth + SSO. Once that function of the project is consummate it is time to decommission the ADFS and WAP servers. This guide is for Windows 2012 R2 installations of ADFS. There are guides for the other versions online.
This guide assumes yous were using ADFS for one relying party trust, that is Role 365, and at present that y'all have moved hallmark to Azure Advertising you do not need to maintain your ADFS and WAP server farms.
Compile a list of server names
So offset check that these conditions are true. Login to the principal node in your ADFS farm. If y'all don't know which is the chief, try this on any one of them and it will tell yous the master node! Run Get-ADFSSyncProperties and you will either become back a list of backdrop where LastSyncFromPrimaryComputerName reads the name of the primary computer or it says PrimaryComputer.
If you don't know all your ADFS Server Subcontract members then you can use tools such as institute at this blog for querying Advert for service account usage every bit ADFS is stateless and does not tape the servers in the subcontract direct.
In that location is no list of the WAP servers in the farm – so you need to know this server names already, but looking in the Event Viewer on an ADFS server should evidence you lot who have connected recently in terms of WAP servers.
Get CertificateSharingContainer
On the primary ADFS server run (Get-ADFSProperties).CertificateSharingContainer. Go on a note of this DN, as you lot will need to delete it about the end of the installtion (after a few reboots and when information technology is non bachelor whatever more)
Check no hallmark is happening and no additional relying party trusts
Login to each ADFS box and check the event logs (Awarding). If whatsoever service is still using ADFS there will be logs for invalid logins. Successful logins are not recorded by default, but failures are – and so if yous accept failures to login currently happening then something is even so using ADFS and and then y'all will non be wanting to uninstall it until you take discovered that.
On the chief ADFS subcontract member open the ADFS admin console and navigate to Trust Relationships >Relying Party Trusts
If all you can come across if Microsoft Part 365 Identity Platform (though it has an different proper name if you lot initially configured it years and years ago). Device Registration Service is congenital into ADFS, so ignore that. If yous take any others, y'all need to work on decommissioning these before you lot decommission ADFS. If you have done the Azure Advertizing hallmark migration then the Office 365 Relying Party Trust volition no longer be in utilize. Run Become-MSOLDomain from Azure Ad PowerShell and check that no domain is listed as Federated. If all domains are Managed, and then you can delete the relying party trust.
Uninstall Boosted Connectors etc.
If you take added connectors into ADFS, for example MFA Server tools, then uninstall these first. For example if you take Microsoft MFA Server ADFS Connector or even the total MFA Server installed, so you accept this and IIS to uninstall. MFA Server is removed from the control panel (there are a few different things to remove, such as MFA Mobile Web App Service, MFA User Portal etc. Remove the MFA Server piece last. IIS is removed with Remove-WindowsFeature Spider web-Server. If y'all uninstall MFA Server, remember to go and remove the servers from the Azure AD Portal > MFA > Server Status expanse at https://aad.portal.azure.com/ ds
Uninstall the WAP Servers
Login to each WAP server, open the Remote Access Management Console and look for published web applications. Remove any related to ADFS that are not being used any more. Look upward Azure App Proxy as a replacement technology for this service. Brand a note of the URL that you lot are removing – its very likely that this ways yous tin can remove the same name from public and private DNS also once the service is no longer needed.
When all the published web applications are removed, uninstall WAP with the following Remove-WindowsFeature Web-Awarding-Proxy,CMAK,RSAT-RemoteAccess. You lot might not accept CMAK installed, merely the other two features demand removing.
Reboot the box to consummate the removal and and then process the server for your decommissioning steps if it is non used for annihilation else.
Uninstall the ADFS Servers
Starting with the secondary nodes, uninstall ADFS with Remove-WindowsFeature ADFS-Federation,Windows-Internal-Database. After this run del C:\Windows\WID\data\adfs* to delete the database files that you lot have merely uninstalled.
Remove Other Stuff
Your ADFS Service business relationship can now be deleted, as tin:
Your DNS entry, internal and external for the ADFS Service, as can:
The firewall rules for TCP 443 to WAP (from the internet), and between WAP and ADFS, as well equally:
Any load balancer configuration yous have. Finally, you can:
Remove the certificate entries in Active Directory for ADFS. If you take removed ALL the ADFS instances in your organization, delete the ADFS node under CN=Microsoft,CN=Program Data,DC=domain,DC=local. If yous have only removed one ADFS farm and yous have others, and then the value you recorded at the elevation for the certificate is the specific tree of items that you tin delete rather than deleting the entire ADFS node.
Source: https://c7solutions.com/2019/03/decommission-adfs-when-moving-to-azure-ad-based-authentication
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