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POServiceHost is binding to multiple hostnames/base addresses
 

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    <p>I'm running Windows 7 and Visual C# Express 2010.</p> <p>I have the following rule in my ACL:</p> <pre><code>Reserved URL : http://www.example.com:8020/gamerecords/ User: Myricae\Dario Listen: Yes Delegate: No SDDL: D:(A;;GX;;;S-1-5-21-3389095862-38437692-3014067205-1001) </code></pre> <p>Not that it really matters, but I also have an appropriate entry in my <em>hosts</em> file:</p> <pre><code>127.0.0.1 www.example.com </code></pre> <p>I'm trying to self-host a WCF service within a console application:</p> <pre><code>var baseAddress = new Uri("http://www.example.com:8020/gamerecords/"); using (ServiceHost host = new ServiceHost(typeof(Acme.Gaming.GameRecordsImpl), baseAddress)) { ... } </code></pre> <p>I get the following exception:</p> <pre><code>Unhandled Exception: System.ServiceModel.AddressAccessDeniedException: HTTP could not register URL http://+:8020/gamerecords/. Your process does not have access rights to this namespace (see http://go.microsoft.com/fwlink/?LinkId=70353 for details). ---&gt; System.Net.HttpListenerException: Access is denied </code></pre> <p>The reason is that <strong>ServiceHost</strong> tries to bind to any hostname (<strong>+</strong>), but the ACL rule only authorizes the current user for hostname <em>www.example.com</em>. If I change the rule to:</p> <pre><code>Reserved URL : http://+:8020/gamerecords/ User: Myricae\Dario Listen: Yes Delegate: No SDDL: D:(A;;GX;;;S-1-5-21-3389095862-38437692-3014067205-1001) </code></pre> <p>everything works fine. However I don't think that <strong>ServiceHost</strong> should really try to bind to any hostname; instead it should only publish the service at <em>www.example.com</em>. <strong>Why WCF attempts to bind to multiple hostnames?</strong>.</p> <p>I found <a href="http://www.differentpla.net/content/2008/03/odd-behaviour-wcf-base-addresses-and-httpsys-wildcards" rel="nofollow">a page</a> which describes a similar issue.</p>
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