AppFabric: Cumulative Update 7 For Microsoft AppFabric 1.1 for Windows Server – Instruction

Please visit below KB to get CU 7: https://support.microsoft.com/en-us/kb/3092423   To apply this fix, follow these steps: Upgrade the servers to the .NET Framework 4.5.2 or onward. Install the cumulative update package. Please make sure to put following setting in the DistributedCacheService.exe.config file: <appSettings> <add key=”backgroundGC” value=”true”/> </appSettings> Restart the AppFabric Caching service for the update…

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SSL/TLS – Decrypt the encrypted network traces

Ask: As we know SSL/TLS is encrypted traffic using symmetric keys created during SSL/TLS handshake. Many a time we might need to decrypt this traffic to observe the request/response packets or client certificates being sent. Tools Needed to decrypt the traffic: 1. Network monitor 3.4 – https://www.microsoft.com/en-in/download/details.aspx?id=4865 2. NMDecrypt 2.3.4 – https://nmdecrypt.codeplex.com/ 3. Server Certificate…

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How to make wcf service read messages from messaging queue after IIS reset?

Problem Definition WCF service is not able to read messages from the private queue automatically after the application pool that hosts the service recycles. Overview of the Issue An IIS hosted WCF service has a ServiceHost object which serves the incoming requests. Once the application pool restarts, the ServiceHost object gets disposed off. It is…

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SSL/TLS – Introduction To CAPI2 Traces

Introduction:CAPI2 traces are part of windows OS and can be enabled from event viewer section. Very useful when we deal with SSL/TLS connectivity or client certificate validation issues. To enable: 1. Open Event Viewer 2. Navigate to Applications and Services Logs -> Microsoft -> Windows -> CAPI2 3. Now, remember that this utility captures all…

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How to modify the RST/SCT request from WCF client to add a cookie in the header.

Issue: You have a WCF service using the security mode as “Message” and hosted behind a load balancer on 2 different servers. During a call from a client, it sets up the security context token with 1st server during the “RST/Issue” and receives an affinity cookie.   However, the “RST/SCT” call goes to a different…

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WCF: FindBySubjectKeyIdentifier x509FindType search for client certificate

Problem Description WCF service is configured with basicHttpBinding, security mode Transport and client credential type certificate. This service is hosted on IIS (Windows server 2008 R2 or any other. In order to communicate with the service, consumer presents client certificate as a credential type. However, client application fails while creating the channel factory with message…


How to rename the App Fabric service after renaming the server.

Issue: People generally rename the server without removing it from the AppFabric cache cluster. This causes the app fabric instance to no longer work correctly and it goes to a “DOWN” or “UNKNOWN” state. PS C:\Users\> get-cachehost get-cachehost : ErrorCode:SubStatus:Cache host old_name.domain is not reachable. At line:1 char:1 + get-cachehost + ~~~~~~~~~~~~~     + CategoryInfo          :…

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