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POIs it possible to use HTTP (NOT HTTPS) over port 443?
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  1. POIs it possible to use HTTP (NOT HTTPS) over port 443?
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    copied!<p>I wonder if it is possible to communicate plain HTTP (no SSL) over the TCP port 443?</p> <p>Trying to change the address of my WCF based server to use the port 443 (but no SSL) fails with this message:</p> <pre><code>Shunra.Common.Wcf.ShunraServiceHost - Open failed with exception System.ServiceModel.AddressAlreadyInUseException: HTTP could not register URL http://+:443/NC/. Another application has already registered this URL with HTTP.SYS. ---&gt; System.Net.HttpListenerException: Failed to listen on prefix 'http://+:443/NC/' because it conflicts with an existing registration on the machine. at System.Net.HttpListener.AddAllPrefixes() at System.Net.HttpListener.Start() at System.ServiceModel.Channels.SharedHttpTransportManager.OnOpen() --- End of inner exception stack trace --- at System.ServiceModel.Channels.SharedHttpTransportManager.OnOpen() at System.ServiceModel.Channels.TransportManager.Open(TransportChannelListener channelListener) at System.ServiceModel.Channels.TransportManagerContainer.Open(SelectTransportManagersCallback selectTransportManagerCallback) at System.ServiceModel.Channels.TransportChannelListener.OnOpen(TimeSpan timeout) at System.ServiceModel.Channels.HttpChannelListener.OnOpen(TimeSpan timeout) at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout) at System.ServiceModel.Dispatcher.ChannelDispatcher.OnOpen(TimeSpan timeout) at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout) at System.ServiceModel.ServiceHostBase.OnOpen(TimeSpan timeout) at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout) at System.ServiceModel.Channels.CommunicationObject.Open() at Shunra.Common.Wcf.ShunraServiceHost.Open() in c:\dev\windows\Common\Shunra.Common\Wcf\ShunraServiceHost.cs:line 65 </code></pre> <p>And this is not the matter of HTTP namespace reservation, since the user is an administrator.</p> <p>So, I am wondering whether there is a special treatment of the port 443 as to only allow HTTPS over it.</p> <p>Thanks.</p>
 

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