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<p class="MsoNormal">We are not able to get nginx to reverse procy RPC to exchange 2010.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We get repeating error messages in the log:<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:40:43 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:40:43 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:41:04 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:41:04 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:41:38 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:41:38 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:41:59 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:41:59 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:42:38 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:42:38 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:42:59 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:42:59 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:43:38 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:43:38 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:44:00 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:44:00 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:44:38 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:44:38 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:44:59 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:44:59 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:49:39 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:49:39 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:50:00 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:50:00 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:54:39 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:54:39 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:55:00 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal">x.x.x.x - - [04/May/2011:08:55:00 -0400] "-" 400 173 "-" "-"<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The testexchangeconnectivity tool bombs with the following error:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Config lines:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> location /rpc { proxy_pass https://mail.local/rpc; }<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><br>
Checking the IIS configuration for client certificate authentication.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">The test passed with some warnings encountered. Please expand the additional details.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> <o:p></o:p></span></p>
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<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="684" style="width:513.0pt">
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><img width="16" height="16" id="Picture_x0020_3" src="cid:image001.gif@01CC0A8D.592EFD60" alt="Description: https://www.testexchangeconnectivity.com/Images/Minus.gif"></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Additional Details<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Client certificate authentication couldn't be determined because an unexpected failure occurred. WinHttpSendRequest failed with error 12152.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";display:none"><o:p> </o:p></span></p>
<table class="MsoNormalTable" border="0" cellpadding="0" width="710" style="width:532.5pt">
<tbody>
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<td width="18" style="width:13.5pt;padding:.75pt .75pt .75pt .75pt">
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><img width="16" height="16" id="Picture_x0020_2" src="cid:image002.png@01CC0A8D.592EFD60" alt="Description: https://www.testexchangeconnectivity.com/Images/Error.png"></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<td style="padding:.75pt .75pt .75pt .75pt">
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Testing HTTP Authentication Methods for URL https://mail.local/rpc/rpcproxy.dll.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">The HTTP authentication test failed.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> <o:p></o:p></span></p>
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<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="684" style="width:513.0pt">
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<td width="16" style="width:12.0pt;padding:0in 0in 0in 0in">
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><img width="16" height="16" id="Picture_x0020_1" src="cid:image001.gif@01CC0A8D.592EFD60" alt="Description: https://www.testexchangeconnectivity.com/Images/Minus.gif"></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Additional Details<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Exception details:<br>
Message: The server committed a protocol violation. Section=ResponseStatusLine<br>
Type: System.Net.WebException<br>
Stack trace:<br>
at System.Net.HttpWebRequest.GetResponse()<br>
at Microsoft.Exchange.Tools.ExRca.Tests.HttpAuthMethodsTest.GetSupportedHttpAuthMethods()<br>
at Microsoft.Exchange.Tools.ExRca.Tests.HttpAuthMethodsTest.PerformTestReally()<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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