Blog

Securing Microsoft ADFS on Windows Server 2019 with Duo Authentication MFA

As a continuation of the AD FS deployment from two of my previous posts: Deploying a redundant Active Directory Federation Services (ADFS) Web Application Proxy servers on Windows Server 2019 https://blog.terenceluk.com/2020/04/deploying-redundant-active-directory_21.html Deploying a redundant Active Directory Federation Services (ADFS) farm on Windows Server 2019 https://blog.terenceluk.com/2020/04/deploying-redundant-active-directory.html

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Deploying a redundant Active Directory Federation Services (ADFS) Web Application Proxy servers on Windows Server 2019

As a follow up to my previous post demonstrating the deployment of a redundant Active Directory Federation Services (ADFS) Farm on Windows Server 2019: Deploying a redundant Active Directory Federation Services (ADFS) farm on Windows Server 2019 https://blog.terenceluk.com/2020/04/deploying-redundant-active-directory.html This post serves to demonstrate the deployment

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Replacing ADFS Proxy Server’s SSL certificate with the cmdlet Set-WebApplicationProxySslCertificate throws the error: “A positional parameter cannot be found that accepts argument…”

Problem You need update the ADFS Proxy server’s certificate as per the following instructions: Managing SSL Certificates in AD FS and WAP in Windows Server 2016https://docs.microsoft.com/en-us/windows-server/identity/ad-fs/operations/manage-ssl-certificates-ad-fs-wap … but executing the command throws the error: PS C:UsersAdministrator> Set-WebApplicationProxySslCertificate “54d87e8e2acc62de2d8cff943f8f5ebdd1db330c”Set-WebApplicationProxySslCertificate : A positional parameter cannot be found

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The message: “One of your on-premises Federation Service certificates is expiring…” is presented when you log into the Office 365 portal at https://portal.office.com

Problem You’ve recently noticed that you receive the following message when logging into the Office 365 portal at https://portal.office.com: One of your on-premises Federation Service certificates is expiring. Failure to renew the certificate and update trust properties within 27 days will result in a loss

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