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WCF Scalability and IIS

Couldn't get better than this. Wenlong has pretty much detailed out to the gory details of understanding WCF scalability in these posts. WCF Request Throttling and Server Scalability Orcas SP1 Improvement: Asynchronous WCF HTTP Module/Handler for IIS7 Read More...
Posted Tuesday, August 19, 2008 2:03 PM by Sajay | 1 Comments

Finally Zermatt's here

IIts been a long wait. After working with customers for getting out their token service and doing all the claim based black magic, finally we have a framework. Its not a bubble gum and match stick situation more and its a full framework. If you want to Read More...
Posted Saturday, July 12, 2008 9:57 AM by Sajay | 1 Comments

Time for your operation execution using the Operation invoker.

Have you ever wanted to do something like this . // Define a service contract. [ ServiceContract (Namespace= "http://Microsoft.ServiceModel.Samples" )] public interface ICalculator { [ OperationContract ] [ PerfOperationBehavior ] double Add( double n1, Read More...
Posted Saturday, April 26, 2008 1:46 PM by Sajay | 0 Comments
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Attachment(s): OperationInvoker.zip

Sending a simple String using WCF - Understanding the channel stack.

The snippet below might not be for the faint hearted. Primarily since its quite gory wcf. I realized that there is so much abstraction in the Service model's channel layers thats its only justice that someone does a simple sample in how to send and read Read More...
Posted Tuesday, February 26, 2008 2:55 PM by Sajay | 1 Comments
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Timeouts and WCF - httpRuntime

There seems to be very little documentation around the timeout behaviors for the client and service and configuring so many knobs can get you in a fix if you dont know what you are tweaking. The below snippet shows how enable one of these scenarios to Read More...
Posted Tuesday, July 24, 2007 1:42 PM by Sajay | 1 Comments
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Applying Service Orientation through WCF

I was supposed to talk more about Development processes at Techmela on this Topic. But then I decided to share one particular aspect that i have learned over and over again when dealing with customers who have gone and developed multi-layered services Read More...
Posted Sunday, June 24, 2007 10:00 PM by Sajay | 0 Comments
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Durable Tokens Across Services - Share your tokens

There seems to be quite a number of time when you want to perform your authentication once and then you just go ahead the want to just call a service without performing the authentication again. What are some advantages of this ? 1. You get to manage Read More...
Posted Friday, April 20, 2007 12:32 PM by Sajay | 0 Comments
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Attachment(s): Durable Token Modified POC.zip

WCF Performance Comparison

I have been waiting for this article for quite some time. Read all about it here Read More...
Posted Thursday, April 05, 2007 8:54 AM by Sajay | 0 Comments
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Thoughts on BasicHttpBinding, Security and SSL

BasicHttpBinding, can there be security?. Yes! The point is this binding can be secured and that too with transport level security and restricted to https(SSL) or message level Check this post for details. http://blogs.msdn.com/drnick/archive/2006/06/01/612672.aspx Read More...
Posted Friday, January 05, 2007 9:32 AM by Sajay | 0 Comments
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TransportWithMessageCredentials - I need to know who is knocking on my door.

The point to be noted here is that even though the security facts of comminication like integrity and confidentiality is taken care of by the transport we might not get enough information from the client as to "Who are you?". Now for this case you need Read More...
Posted Saturday, December 30, 2006 9:28 PM by Sajay | 3 Comments
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Attachment(s): TransportWithMessageCredentials - UserName - Windows.zip

Adding a Message Header without using a MessageContract

Using Message contracts is quite a straight forward way of creating and adding message headers.But then again you might just want to add a header without going downt that route like this post by Kenny . You generally come across 2 scenarios where you Read More...
Posted Saturday, December 30, 2006 8:44 AM by Sajay | 2 Comments
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Checking the SIDs in the WindowsClaimSet

In continuation to my post of SAM vs PP , we concluded that to avoid fractured policy checking we can still check if the user belongs to a particular group by checking the occurence of an SID in the WindowsClaimSet that he submits to the service. One Read More...
Posted Wednesday, December 27, 2006 11:06 PM by Sajay | 1 Comments
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ServiceAuthorizationManager and PrincipalPermission

You may face a problem when trying to check for Principal permission and demand in the CheckAccessCore of the SerivceAuthorizationManager and you might see a security exception. This is primarily because the threads principal is not set when this demand Read More...
Posted Friday, December 22, 2006 8:33 AM by Sajay | 1 Comments
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Web Hosted Sample with UserNamePassword Supporting Token

In the Passing a UserName as a supporting token post was pretty much a single console app to demo the basic flow. This sample is a bit more richer and shows a web hosted service that requires the usernameSecurity token. To configure it please create a Read More...
Posted Tuesday, December 12, 2006 11:31 AM by Sajay | 1 Comments
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Attachment(s): UPSupportingToken.zip

Passing a UserName as a supporting token.

Firstly i would like to thank Brent Schmaltz who helped me solve this problem. When trying to secure messages might require more than than the primary token to identity the client. We can then resort to sending additional information that would help in Read More...
Posted Tuesday, December 12, 2006 4:13 AM by Sajay | 3 Comments
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