Re: Problem with self hosting under the NetworkService account

I see this problem on XP as well. On Vista I run as an Administrator, on XP
as well during the install of the service.

Also, I am not getting an AddressAccessDeniedException, I am getting an
NullReferenceException.

Any other ideas?

Thanks, Dave


""Steven Cheng"" <stcheng@xxxxxxxxxxxxxxxxxxxx> wrote in message
news:R8AgTjvPJHA.312@xxxxxxxxxxxxxxxxxxxxxxxxx
Hi Dave,

From your description, your windows service hosted WCF service report
exception at startup time, correct?

According to the error message and code snippet you provided, I think the
code and configuration should be ok. And since changing account will make
the result different, the problem is likely to be a permission specific
issue.

So far, based on my experience, there is a potential issue(which might be
caused by unsufficient permission) when initilaize the WCF host. That's
the
registring of the http listening url on vista machine. Based on the
computer name and wcf configuration, I think your dev box is a vista box
and you're using http channel, therefore, I think it is likely the cause.

Here is a web article which mentioned detailed information on registering
http url on vista machine(for a certain user account). You can try
granting
the http url (You want to use for your WCF endpoint) access permission to
the service account:

#AddressAccessDeniedException: HTTP could not register URL
http://+:8080/<¡­>.
http://blogs.msdn.com/paulwh/archive/2007/05/04/addressaccessdeniedexception
-http-could-not-register-url-http-8080.aspx

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead


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--------------------
From: "Dave Burns" <dburns@xxxxxxxxxxxxxxxx>
Subject: Problem with self hosting under the NetworkService account
Date: Tue, 4 Nov 2008 12:53:41 -0600

I am self hosting a Web Service in a Windows service. I am trying to start
the service using the NT AUTHORITY\NetworkService account.

I get a NullReferenceException on ServiceHost.Open() in the
ServiceBase.OnStart() method. SCM throws a 1067 error as well.

I get the same problem with NT AUTHORITY\LocalService.

When I use the LocalSystem account, my domain account, or another regular
user account, the windows service starts just fine.

I would appreciate any help on this topic, thanks in advance!

Dave


Here's the code snippet:

class HostService : ServiceBase
{
private EventLog log;
private ServiceHost testServiceHost;

public HostService()
{
CanPauseAndContinue = false;
ServiceName = "Test Web Service";

// create an EventLog instance and assign its source.
this.log = new EventLog();
this.log.Source = HostInstaller.SERVICE_EVENT_SOURCE;

EventLog.WriteEntry("Got through constructor",
EventLogEntryType.Information);
}

static void Main()
{
// load the service into memory.
ServiceBase.Run(new HostService());
}

// start the service.
protected override void OnStart(string[] args)
{
EventLog.WriteEntry("At the top of OnStart",
EventLogEntryType.Information);

// request 60 seconds for startup from SCM, just in case
RequestAdditionalTime(60000);

EventLog.WriteEntry("After RequestAdditionalTime()",
EventLogEntryType.Information);

// start self hosting
ServiceEndpoint endpoint = null;
try
{
endpoint = this.testServiceHost.Description.Endpoints[0];
this.testServiceHost = new ServiceHost(typeof(RmTestService));
EventLog.WriteEntry("After new ServiceHost()",
EventLogEntryType.Information);

// blows up here!!!
this.testServiceHost.Open();
}
catch (Exception e)
{
EventLog.WriteEntry("Problem starting " +
endpoint.Contract.Name
+ ": " + e.Message, EventLogEntryType.Error);
throw e;
}
}

Here's app.config snippet:

<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" />
<services>
<service behaviorConfiguration="RmWebService.RmWebServiceBehavior"
name="Rimage.Web.Service.RmTestService">
<host>
<baseAddresses>
<add
baseAddress="http://vista-draskin:55555/RmTestService.svc"/>
</baseAddresses>
</host>
<endpoint address="http://vista-draskin:55555/RmTestService.svc";
binding="basicHttpBinding" name="SoapEndpoint"
bindingNamespace="http://www.rimage.com/RmTestService";
contract="Rimage.Web.Service.IRmTestService"
listenUriMode="Explicit">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" name="MexEndpoint"
bindingNamespace="http://www.rimage.com/RmTestService";
contract="IMetadataExchange" />
</service>

</services>

<behaviors>
<endpointBehaviors>
<behavior
name="Rimage.Web.Service.RmAjaxTestServiceAspNetAjaxBehavior">
<enableWebScript />
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior name="RmWebService.RmWebServiceBehavior">
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>





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