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<p class="MsoNormal">Since moving to IDP 4.01 we are having some CAS authentication issues. It seems quite random, maybe 2 -3 times a week and a reboot of one or sometimes both IDP servers resolves the issue until it happens again. Here is what is happening<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0cm" start="1" type="1">
<li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-fareast-language:EN-CA">User browser accesses CAS application<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-fareast-language:EN-CA">Browser is redirected to IDP login page<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-fareast-language:EN-CA">User enters credential (browser) authenticated at IDP<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-fareast-language:EN-CA">IDP sent a CAS ticket back to the browser, and redirect the browser back to CAS application<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-fareast-language:EN-CA">Browser presents the CAS ticket number to CAS application<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-fareast-language:EN-CA">CAS application server sends ticket validation request to IDP server<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-fareast-language:EN-CA">IDP validates the ticket, and return to the CAS application server a SOAP wrapped SAML response.
<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-fareast-language:EN-CA">User only sees a blank page in the browser<o:p></o:p></span></li></ol>
<p class="MsoNormal"><span style="mso-fareast-language:EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-CA">When it’s working, between step 7 and 8, it should be the CAS application servers received SOAP message and continue to display the resources to user in the browser.
<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any ideas? This is really puzzling us.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-CA">********************************<br>
Rene Paquin - Systems Administrator <br>
Wilfrid Laurier University<br>
Waterloo, Ontario<br>
(519)884-0710 x3795<br>
<a href="mailto:rpaquin@wlu.ca" target="_blank"><span style="color:blue">rpaquin@wlu.ca</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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