The WCF is deployed as a windows service in the server. And the client is a windows form applicaiton. When the client is interacting with the WCF server, is there any kind of authentication going on here?
I got how to resolve this here
I want to know what is the default security mode for NetTCP in WCF? I had nothing related with security in my config file as below. So what is the default?
<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" />
<behaviors>
<serviceBehaviors>
<behavior name="BasicServiceBehavior">
<serviceMetadata httpGetEnabled="false"/>
<serviceDebug includeExceptionDetailInFaults="false"/>
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="HCCNetTcpBinding" >
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
</endpointBehaviors>
</behaviors>
<services>
<service behaviorConfiguration="BasicServiceBehavior" name="HCC.SMS4.SERVICES.BASIC.MainServices">
<endpoint address="" binding="netTcpBinding" contract="HCC.SMS4.SERVICES.BASIC.IMainServices" bindingConfiguration="HCCNetTcpBinding" />
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
<host>
<baseAddresses>
<add baseAddress="http://xxxx:44008/HCsmsBasicServices/"/>
<add baseAddress="net.tcp://xxxx:45008/HCsmsBasicServices/"/>
</baseAddresses>
</host>
</service>
</services>
<bindings>
<netTcpBinding>
<binding name="HCCNetTcpBinding" maxConnections="1000" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" maxBufferSize="2147483647"
openTimeout="14:00:00" receiveTimeout="14:00:00" sendTimeout="14:00:00">
<readerQuotas maxDepth="32" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"/>
</binding>
</netTcpBinding>
</bindings>
</system.serviceModel>
The transport security mode of the NetTcpBinding is Transport and the ClientCredentialType is Windows. This is equivalent to the following settings.
<netTcpBinding>
<binding name="netTcp">
<security mode="Transport">
<transport clientCredentialType="Windows" />
</security>
</binding>
</netTcpBinding>
So when you use the client proxy class to call the service, you could refer to the following code.
ServiceReference1.ServiceClient client = new ServiceReference1.ServiceClient();
client.ClientCredentials.Windows.ClientCredential.UserName = "administrator";
client.ClientCredentials.Windows.ClientCredential.Password = "abcd1234!";
var result = client.SayHello();
https://learn.microsoft.com/en-us/dotnet/framework/wcf/system-provided-bindings
https://learn.microsoft.com/zh-cn/dotnet/framework/wcf/feature-details/bindings-and-security
Feel free to contact me if you have any questions.
WCF, its default authentication is Windows if there is none config about it.
Per Microsoft documentation for NetTcpBinding the default security is TLS with Windows security.
Related
Currenlty there is a Wcf service hosted as windows service in one of our client side machine, actually currently this is working with normal http call. As we need to use https instead of http, for that we modified app.config but after starting the service the https url not working.Then we tried URL reservation by using netsh http add urlacl url=https://+:18732/Peripheral/ user=Everyone.Then we restared the service again it's not able to access the https url.
we are getting the error in the URl browser •Make sure that TLS and SSL protocols are enabled.
Is this related to any certificate issue? if so how we can able to solve this issue?
The web.config is provied below:-
<system.serviceModel>
<standardEndpoints />
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
<bindings>
<basicHttpBinding>
<binding name ="soapBinding">
<security mode="Transport">
<transport clientCredentialType="None"/>
</security>
</binding>
</basicHttpBinding>
<webHttpBinding>
<binding name="Bind1" crossDomainScriptAccessEnabled="true">
<security mode="Transport">
<transport clientCredentialType="None"/>
</security>
</binding>
</webHttpBinding>
</bindings>
<services>
<service name="Peripheral.Server.Impl.PeripheralServiceImpl" behaviorConfiguration="SvcBhvr">
<host>
<baseAddresses>
<add baseAddress="https://localhost:18732/Peripheral/" />
</baseAddresses>
</host>
<endpoint address="https://localhost:18732/Peripheral/" binding="webHttpBinding" behaviorConfiguration="EndPBhvr" bindingConfiguration="Bind1"
contract="Peripheral.Server.Contract.IPeripheralService">
<!--<identity>
<dns value="localhost" />
</identity>-->
</endpoint>
<endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange" />
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="EndPBhvr">
<webHttp />
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior name="SvcBhvr">
<serviceMetadata httpsGetEnabled="true" httpGetEnabled="false" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
Anyone knows how to fix this and what we needed to do so that we could able to access the url as https from windows services?
You may need also to bind ssl certificate to the specific port number using netsh or HttpConfig tool depending from OS version. Detailed instructions can be found here
In your case it could be:
netsh http add sslcert ipport=0.0.0.0:18732 certhash=<certhash> appid={<guid>} clientcertnegotiation=enable
where
certhash = your certificate Thumbprint(X509Certificate2.Thumbprint)
appid = could be just Guid.NewId()
I'm trying to secure my WCF service using transport security model. I've successfully deployed my service to AppHarbor. But I'm getting the following exception when I try to access service page:
[InvalidOperationException: Could not find a base address that matches scheme https for the endpoint with binding BasicHttpBinding. Registered base address schemes are [http].] ...
I haven't uploaded any certificates, just using piggyback SSL there. I've downloaded the build and deployed it on my machine. It works fine.
Here is my system.serviceModel section of web.config:
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="TransportSecurity">
<security mode="Transport">
<transport clientCredentialType="None"/>
</security>
</binding>
</basicHttpBinding>
</bindings>
<services>
<service behaviorConfiguration="AuthService.AuthServiceBehavior" name="AuthService.AuthService">
<host>
<baseAddresses>
<add baseAddress="https://auth.apphb.com/AuthService.svc" />
</baseAddresses>
</host>
<endpoint address="" binding="basicHttpBinding" bindingConfiguration="TransportSecurity" contract="AuthService.IAuthService" />
<endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange" />
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="AuthService.AuthServiceBehavior">
<serviceMetadata httpsGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
I've already tried this Hosting a WCF Web API app on AppHarbor?
Can somebody please explain me what I'm doing wrong?
This issue frequently appear when you communicate with the wcf web service thru the LB (AppHarbor one of the example of it).
You should know several things about such kind of communications.
1) Communication between yours client application and LB is secured (https is in use). So you should leverage security binding on the client side.
<basicHttpBinding>
<binding name="BasicHttpBinding_IAuthService">
<security mode="Transport">
<transport clientCredentialType="None" />
</security>
</binding>
</basicHttpBinding>
2) Communication between LB and web-front uses http, so server binding should be basicHttpBinding without extra configuration.
<endpoint binding="basicHttpBinding" contract="AuthService.IAuthService" />
Summarizing all that stuff we have
Client
<configuration>
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_IAuthService">
<security mode="Transport">
<transport clientCredentialType="None" />
</security>
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="https://auth.apphb.com/AuthService.svc"
binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IAuthService"
contract="AuthService.IAuthService" name="BasicHttpBinding_IAuthService" />
</client>
</system.serviceModel>
</configuration>
Server
<system.serviceModel>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
<protocolMapping>
<add scheme="http" binding="basicHttpBinding" />
</protocolMapping>
<bindings>
<basicHttpBinding/>
</bindings>
<services>
<service behaviorConfiguration="AuthService.AuthServiceBehavior" name="AuthService.AuthService">
<endpoint binding="basicHttpBinding" contract="AuthService.IAuthService" />
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="AuthService.AuthServiceBehavior">
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
Your approach is not going to work right off the bat. This is because SSL is terminated at the load balancers and the app servers see http traffic. You can read more about AppHarbor load balancers here.
You might be able to fool WCF with this module.
There are also some hints in this discussion: http://support.appharbor.com/discussions/problems/829-transportwithmessagecredential-https-ssl
I have a WCF app hosted in IIS6 (and 7 in dev environment) with one wsHttp (SOAP) and two webHttp (REST) bindings.
I want to secure the services when publishing to production site and disable metadata and webHttp help page and ENABLE SSL for the bindings. At the same time i would like to have HTTP disabled. I'm aware of the option in IIS to "Require Secure Channel" but I was wondering if the same can be achieved in web.config?
I was under the impression that
<security mode="Transport">
would "disable" http access (ie. https required) but in my case it didn't.
Her is the ServiceModel part of web.config:
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="SoapTransportSecurityBinding">
<security mode="Transport">
<transport clientCredentialType="None"/>
<message establishSecurityContext="false"/>
</security>
</binding>
</wsHttpBinding>
<webHttpBinding>
<binding name="RestTransportSecurityBinding">
<security mode="Transport">
<transport clientCredentialType="None"/>
</security>
</binding>
</webHttpBinding>
</bindings>
<services>
<service name="CustomerWcfService" behaviorConfiguration="Web.ServiceBehavior">
<endpoint address="" binding="wsHttpBinding" bindingConfiguration="SoapTransportSecurityBinding" contract="ICustomerWcfService">
<identity>
<dns value="ws.somecompany.com"/>
</identity>
</endpoint>
</service>
<service name="SentShipmentsWcfRestService" behaviorConfiguration="webHttpServiceBehavior">
<endpoint address="" binding="webHttpBinding" bindingConfiguration="RestTransportSecurityBinding" contract="ISentShipmentsWcfRestService"
behaviorConfiguration="RestEndpointBehavior"/>
</service>
<service name="InsuranceInfoWcfRestService" behaviorConfiguration="webHttpServiceBehavior">
<endpoint address="" binding="webHttpBinding" bindingConfiguration="RestTransportSecurityBinding" contract="IInsuranceInfoWcfRestService"
behaviorConfiguration="RestEndpointBehavior"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="Web.ServiceBehavior">
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
<behavior name="webHttpServiceBehavior">
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="RestEndpointBehavior">
<webHttp helpEnabled="false"/>
</behavior>
</endpointBehaviors>
</behaviors>
It looks it couldn't be achieved in web.config. But in the binding settings you can set
<security mode="Transport">
In this case endpoints will not be valid if there is no SSL required.
I have a WCF service with two endpoints defined by the configuration file below:
<system.serviceModel>
<services>
<service name="SyncService" behaviorConfiguration="SyncServiceBehavior">
<endpoint name="Data" address="Data" binding="basicHttpBinding" bindingConfiguration="windowsAuthentication" contract="ISyncService"/>
<endpoint name="File" address="File" binding="basicHttpBinding" bindingConfiguration="httpLargeMessageStream" contract="ISyncService"/>
<endpoint address="mex" binding="webHttpBinding" bindingConfiguration="windowsAuthentication" contract="IMetadataExchange"/>
</service>
</services>
<bindings>
<basicHttpBinding>
<binding name="httpLargeMessageStream" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" transferMode="Streamed" messageEncoding="Mtom" />
<binding name="windowsAuthentication" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647">
<security mode="TransportCredentialOnly">
<transport clientCredentialType="Windows" proxyCredentialType="None" realm=""></transport>
<message algorithmSuite="Default" clientCredentialType="UserName"/>
</security>
</binding>
</basicHttpBinding>
<webHttpBinding>
<binding name="windowsAuthentication">
<security mode="TransportCredentialOnly">
<transport clientCredentialType="Windows"></transport>
</security>
</binding>
</webHttpBinding>
</bindings>
<behaviors>
<serviceBehaviors>
<behavior name="SyncServiceBehavior">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="true"/>
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"></serviceHostingEnvironment>
</system.serviceModel>
I want to use windows authentication for the Data endpoint, but have recently discovered that you cannot use windows authentication for streaming over HTTP. I removed the security element for the File endpoint, but still get the following error:
HTTP request streaming cannot be used in conjunction with HTTP
authentication. Either disable request streaming or specify anonymous
HTTP authentication. Parameter name: bindingElement
Is it possible to have two endpoints on the same service use different authentication methods like this? Why can't I use windows authentication for streaming?
I have also tried what was suggested in this thread, but to no avail:
Which authentication mode of basichhtpbinding can be used to secure a WCF Service using Streaming?
Unfortunately this is not supported.
I have defined maxBufferSize = 2147483647, maxBufferPoolSize = 2147483647, maxReceivedMessageSize = 2147483647 in the server config file but when i generate client config file, values for all these parameters are defaulted in there and i have to edit them manually. This is how i generate the client config file
svcutil.exe /language:cs /out:generatedProxy.cs /config:app.config net.tcp:/
/localhost:4365/MyService
Also since i am using maximum values in the maxBufferSize, maxBufferPoolSize, maxReceivedMessageSize and maxItemsInObjectGraph, is that going to hit the performance?
--Server config values--
<bindings>
<netTcpBinding>
<binding name="MySvc_InsecureTcp" closeTimeout="00:01:10" openTimeout="00:01:10" receiveTimeout="24.20:31:23.6470000"
listenBacklog="1000" maxConnections="1000" maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647">
<security mode="None">
<transport protectionLevel="None" />
</security>
</binding>
<binding name="MySvc_mexBinding" closeTimeout="00:01:10" openTimeout="00:01:10" receiveTimeout="24.20:31:23.6470000"
listenBacklog="1000" maxConnections="1000" maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647">
<security mode="None">
<transport protectionLevel="None" />
</security>
</binding>
</netTcpBinding>
</bindings>
<behaviors>
<serviceBehaviors>
<behavior name="MyService">
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
<serviceDebug includeExceptionDetailInFaults="false" />
<serviceThrottling maxConcurrentCalls="30" maxConcurrentInstances="2147483647" maxConcurrentSessions="30" />
<serviceMetadata />
</behavior>
</serviceBehaviors>
</behaviors>
<services>
<service name="MyNameSpace.MyService" behaviorConfiguration="MyService">
<endpoint address="" binding="netTcpBinding" contract="MyNameSpace.IMyService"
bindingConfiguration="MySvc_InsecureTcp" name="netTcpMySvc" >
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="mex" binding="netTcpBinding" contract="IMetadataExchange"
bindingConfiguration="MySvc_mexBinding" name="mexMySvc" />
<host>
<baseAddresses>
<add baseAddress="net.tcp://localhost:4365/MyService"/>
</baseAddresses>
</host>
</service>
</services>
--After doing some more testing--
maxItemsInObjectGraph doesnt get included in the client config file. And if client is sending large objects, maxItemsInObjectGraph should be changed manually.
<behaviors>
<endpointBehaviors>
<behavior name="FASTServiceBehaviour">
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
</behavior>
</endpointBehaviors>
</behaviors>
Not every configuration value defined on the service is passed to the client through metadata. Buffer sizes and reader quotas are one example because each participant in the communication can setup its own values - those values are defense against Denial of Service attack and can differ between service and client based on exchanged messages. For example if you want only upload large data sets you must set them correctly on the service but you don't need to modify them on the client. Downloading has reverse effect.
This is normal. Those properties are limited to that configuration file and don't carry across the service. Clients and servers can have different size limits, largely to help protect the sever against outrageously long requests (that the client might be expecting).