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<p class="MsoNormal">Good Evening!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In an effort to create a uniform login experience, complete with MFA, our organization has opted to deploy internal SPs. I’m working with a colleage on setting up one of our first SPs and I’m running into a snag that I can’t find the answer
to via normal channels. I’m hoping someone here can assist.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We’re attempting to authenticate against our development idp environment, it-federation-dev.jmu.edu. In the shibd.log on the SP side, we’re seeing this:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-indent:.5in">2019-05-23 18:26:38 DEBUG OpenSAML.MessageEncoder.SAML2Redirect [2] [default]: marshalled message:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><samlp:AuthnRequest xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" AssertionConsumerServiceURL="https://itsmapi.jmu.edu/Shibboleth.sso/SAML2/POST" Destination=<a href="https://it-federation-dev.jmu.edu/idp/profile/SAML2/Redirect/SSO">https://it-federation-dev.jmu.edu/idp/profile/SAML2/Redirect/SSO</a>
ID="_1648fa9b7458e5bb02050562e7902c54" IssueInstant="2019-05-23T22:26:38Z" ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Version="2.0"><saml:Issuer xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion">https://itsmapi.jmu.edu/shibboleth</saml:Issuer><samlp:NameIDPolicy
AllowCreate="1"/></samlp:AuthnRequest><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">And the SP transaction log shows this:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> 2019-05-23 18:26:38|Shibboleth-TRANSACTION.AuthnRequest|||https://it-federation-dev.jmu.edu/idp/shibboleth||||||urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect||||||<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">On the idp side, we see this:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:.5in">DEBUG Endpoint Resolver org.opensaml.saml.common.binding.impl.DefaultEndpointResolver: Neither candidate endpoint location 'https://it-itsmapi.jmu.edu/Shibboleth.sso/SAML2/POST' nor response location 'null' matched
'https://itsmapi.jmu.edu/Shibboleth.sso/SAML2/POST'<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It appears the SP is sending requests to HTTP-Redirect on our idp and I can’t figure out why. The metadata on both instruct HTTP-POST as the primary protocol:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">SP:<o:p></o:p></p>
<p class="MsoNormal"> <md:AssertionConsumerService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://it-itsmapi.jmu.edu/Shibboleth.sso/SAML2/POST" index="0" isdefault="true"/><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Idp:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> <SingleSignOnService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://it-federation-dev.jmu.edu/idp/profile/SAML2/POST/SSO"/><o:p></o:p></p>
<p class="MsoNormal"> <SingleSignOnService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST-SimpleSign" Location="https://it-federation-dev.jmu.edu/idp/profile/SAML2/POST-SimpleSign/SSO"/><o:p></o:p></p>
<p class="MsoNormal"> <SingleSignOnService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect" Location="https://it-federation-dev.jmu.edu/idp/profile/SAML2/Redirect/SSO"/><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">If I remove the HTTP-POST-SimpleSign and HTTP-Redirect lines from the idp metadata on the SP, I get an HTTP-POST transaction on the SP, but a similar candidate mismatch error on the idp side. What config files should I be paying attention
to that would control this behavior? Relying-parties.xml is configured similarly to other SPs we have in place and makes no mention of using HTTP-Redirect. Shibboleth2.xml also makes no mention of HTTP-Redirect.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you for your time!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">--<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Jack Garmer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Linux Systems Administrator<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">James Madison University<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">o. 540-568-4235<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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