Accesing wcf service hosted in iis works in localhost but not if accessed by ip:port/service.svc

Question

Web.config

<behavior name="JobsServiceBehavior">
    <dataContractSerializer maxItemsInObjectGraph="2147483646" />
    <serviceMetadata httpGetEnabled = "true" httpsGetEnabled="true"/>
    <serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>

<service behaviorConfiguration="JobsServiceBehavior"
           name="XDE.WebServices.Implementation.JobManagerService">
    <endpoint binding="wsDualHttpBinding"
        name="WSDualHttpBinding_IJobManagerService"
        bindingConfiguration="wsDualHttpBinding"
        contract="XDE.CommonInterfaces.Jobs.IJobManagerService" />
</service>

app.config

<client>
    <endpoint address="http://192.192.192.1/Services/JobService.svc"
        binding="wsDualHttpBinding"
        bindingConfiguration="WSDualHttpBinding_IJobManagerService"
        contract="XDE.CommonInterfaces.Jobs.IJobManagerService"
        name="WSDualHttpBinding_IJobManagerService" />
</client>

Hello, I Have an issue with wcf service. I have a service hosted in an mvc app on iis on a server machine, when i try to access it nothing happens annd i get a null refrence. I am using DuplexChannelFactory and when i call the open() method nothing happens for a while and then the aplication closes. This does not happen if I am hosting the mvc app on the same machine as the service consuming app.

score 0 · Answer 1 · edited May 23 '17 at 11:49

First of all I must discourage you from using wsDualHttpBinding. I had problems with it while using it over the internet and proxies/firewalls. I agree with Juval Lowy's words from his book (Programming WCF Services): "the WSDualHttpBinding is mostly unusable, since it is practically impossible to tunnel through various communication barriers separating the service from the client and the need to find a specific web-server makes this impractical". See also wsDualHttpBinding ClientBaseAddress & firewalls I am strongly suggesting you to use NetTcpBinging/NetTcpRelayBinding (IIS/WAS hosing).

But you can try wsDualHttpBinding. I remember that my problem with it was in ClientBaseAddress . AFAIK - you need to specify it in client config (or programmatically) and use different (extra) port (can be blocked by firewall) in ClientBaseAddress for second http channel to communicate in duplex

Accesing wcf service hosted in iis works in localhost but not if accessed by ip:port/service.svc

1 Answers1