Kentor AuthServices StubIDP
https://github.com/KentorIT/authservices (source code)
\\zeus\apps\SynSamlTester-Kentor (compiled version)
Setup a site containing the solution for the subfolder of Kentor.AuthServices.StubIdp. Once setup the page should be similar to the following:
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Setup the configuration XML SAMLLogoutDestination to point to the IDP URL. Download the certificate and save it to the certificate folder of your SynWeb/Community portal under the Site/Certificate. Next, set the SAMLLoginX509CertificatePath to point to the file. E.g. <SAMLLoginX509CertificatePath>~/Site/Certificates/okta.cert</SAMLLoginX509CertificatePath>.
The "Subject NameID" is the Claim attribute that is used to identify the user.