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<p class="MsoNormal"><span style="color:#1F497D">We’ve diagnosed the problem.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Symptoms:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l3 level1 lfo4"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">User cannot log in to a Service Provider / against an IDentity Provider<o:p></o:p></span></p>
<p class="MsoListParagraph"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l3 level1 lfo4"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">Browser error reflected to the user:<o:p></o:p></span></p>
<p class="MsoListParagraph"><span lang="EN-US">“An error occurred while processing your request. Please contact your helpdesk or user ID office for assistance.
<br>
This service requires cookies. Please ensure that they are enabled...<snip>”<o:p></o:p></span></p>
<p class="MsoListParagraph"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l3 level1 lfo4"><![if !supportLists]><span lang="EN-US"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">Shibboleth IdP logs report:</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoListParagraph"><span lang="EN-US">09:38:27.921 - DEBUG [edu.internet2.middleware.shibboleth.idp.authn.provider.UsernamePasswordLoginServlet:159] - Successfully authenticated user testuser
<br>
09:38:27.921 - DEBUG [edu.internet2.middleware.shibboleth.idp.authn.AuthenticationEngine:144] - Returning control to authentication engine
<br>
09:38:27.921 - DEBUG [edu.internet2.middleware.shibboleth.idp.util.HttpServletHelper:316] - LoginContext key cookie was not present in request
<br>
09:38:27.921 - WARN [edu.internet2.middleware.shibboleth.idp.authn.AuthenticationEngine:147] - No login context available, unable to return to authentication engine
<br>
09:38:28.100 - DEBUG [edu.internet2.middleware.shibboleth.idp.util.HttpServletHelper:316] - LoginContext key cookie was not present in request
<o:p></o:p></span></p>
<p class="MsoListParagraph"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Steps to reproduce:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l2 level1 lfo2"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">IE8 is set to fetch content through a proxy,<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l2 level1 lfo2"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">IE8 has the sophos antivirus content scanner plugin enabled,<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l2 level1 lfo2"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">user attempts to login to an SP / against a IdP<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Workarounds included:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">- Unticking the "Automatically detect settings" box<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">- Adding the SP to the "Intranet Sites" zone in IE8<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">- Disabling Sophos content scanner plugin.</span><span style="font-size:10.0pt;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Steps to resolve:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">It turned out to be a simple fix:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l2 level1 lfo2"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">Add the domain of the Service Provider to the ‘local intranet’ (or ‘trusted’) zone.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Additional reading/</span><span style="font-size:11.5pt;color:#1F497D">reference:<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-indent:18.0pt">
<b>Sophos Anti-Virus for Windows 2000+: how to centrally exclude sites <o:p></o:p></b></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-indent:18.0pt">
<b>from being scanned by Sophos web content scanning<o:p></o:p></b></p>
<p class="MsoNormal" style="text-indent:18.0pt"><span style="font-size:11.5pt;color:#1F497D"></span><span style="font-size:11.5pt;color:black"><a href="http://www.sophos.com/support/knowledgebase/article/46504.html">http://www.sophos.com/support/knowledgebase/article/46504.html</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">--Benji<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:#1F497D">Benji Wakely - b.wakely@latrobe.edu.au<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Unix Systems Administrator<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Work phone: +613 9479 5499<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">mobile: +614 34 307 667<o:p></o:p></span></p>
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