saurabs
WCF: Verbose PII Tracing
WCF PII Verbose tracing ==== Depending on app built, update the machine.config file Add line:...
Author: Saurabh Somani Date: 06/18/2018
WS/WCF: Remove Server Header
Requirement: Need to suppress all instances of the HTTP ‘Server’ header from all HTTP responses...
Author: Saurabh Somani Date: 12/18/2017
WCF/WS: SSL Mutual Client Cert Authentication 403.16 or 403.7
Problem When attempting to use a certificate to authenticate to an IIS website or self hosted WCF...
Author: Saurabh Somani Date: 06/12/2017
WCF Tracing
WCF Tracing can be configured at three different levels. 1. WCF Verbose Traces: Recommended for DEV...
Author: Saurabh Somani Date: 06/12/2017
System.Net Tracing collection Steps
Ask: System.Net Tracing is very helpful to review SSL/TLS and socket level connection/communication...
Author: Saurabh Somani Date: 06/12/2017
ASMX/WS/WCF Web Service: System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
Issue: Intermittent Socket exception seen on client application trying to fetch data from MS web...
Author: Saurabh Somani Date: 06/05/2017
WCF/WS/TLS: Get .Net Framework 4.0 application use TLS 1.2 as default protocol
Issue: By default, .net application built on framework 4.0 will use SSL3.0 or TLS1.0 as default...
Author: Saurabh Somani Date: 06/01/2017
WIF: WIF10201: No valid key mapping found for securityToken:
Issue: WIF10201: No valid key mapping found for securityToken: This exception is observed on a...
Author: Saurabh Somani Date: 04/27/2017
WCF: Federating WCF with WIF
Ask: Federate WCF service via WIF Traditional approach: For normal web app or MVC app, we follow the...
Author: Saurabh Somani Date: 04/24/2017
WCF: Message Security limitation with TLS 1.2 protocol
Issue: WCF Message Security breaks when using or forced to use TLS 1.1 or TLS 1.2 protocol. Re-pro...
Author: Saurabh Somani Date: 04/13/2017
SSL/TLS - Decrypt the encrypted network traces
Ask: As we know SSL/TLS is encrypted traffic using symmetric keys created during SSL/TLS handshake....
Author: Saurabh Somani Date: 10/31/2016
SSL/TLS - Introduction To CAPI2 Traces
Introduction:CAPI2 traces are part of windows OS and can be enabled from event viewer section. Very...
Author: Saurabh Somani Date: 10/27/2016
WCF: Mutual SSL Client Cert Authentication Guide With Sample App
Issue: Challenges while we try to use the SSL Mutual Authentication with Client Certificates for WCF...
Author: Saurabh Somani Date: 09/15/2016
WCF: Intermittent connectivity issue with private MSMQ - WCF stops reading messages from queue
Issue: WCF intermittently stops reading messages from the private local MSMQ, which will cause...
Author: Saurabh Somani Date: 09/08/2016
WIF: Long live My Session - Session Authentication Module To Avoid STS Redirect
Issue: We are talking about problem where the SAML Token Validity Time set via custom STS is less (5...
Author: Saurabh Somani Date: 09/08/2016
WCF/WIF: JWT Token Validator
Issue: Client > JWT Token -> REST Service -> SOAP Service Steps: ======== 1. User call the...
Author: Saurabh Somani Date: 09/05/2016
WCF: POC for SAML Token Creation and Consumption
WCF: POC for SAML Token Creation and Consumption Agenda: We will understand how we can create a...
Author: Saurabh Somani Date: 07/31/2016
WCF: Life behind SSL Offloader
WCF: Exposing and consuming WCF service behind SSL Off loader Problem Statement: Service external...
Author: Saurabh Somani Date: 03/24/2016
WCF: How to send two different client certificates as credentials at both Transport and Message Level
WCF: How to send two different client certificates as credentials at both Transport and Message...
Author: Saurabh Somani Date: 03/07/2016
WCF: Review System.Net and Network traces for Windows Authentication/Delegation based troubleshooting
WCF: Review System.Net and Network traces for Windows Authentication/Delegation based...
Author: Saurabh Somani Date: 03/07/2016
WCF: Introp - Signing without primary signature requires timestamp.
WCF: Introp - Signing without primary signature requires timestamp. Security Requirement: SSL...
Author: Saurabh Somani Date: 03/07/2016
WF: Running Work Flow application on FIPS (The Federal Information Processing Standard) complaint Machines.
WF: Running Work Flow application on FIPS (The Federal Information Processing Standard) complaint...
Author: Saurabh Somani Date: 03/07/2016
Negotiate v/s NTLM
Definitions: Negotiate: Microsoft Negotiate is a security support provider (SSP) that acts as an...
Author: Saurabh Somani Date: 12/30/2015
WCF: SSL/TLS Failure during Add Service Reference (System.Net.Security.SslState.ProcessAuthentication)
Issue: WCF Client application unable to consume web service metadata over SSL. Symptoms: Unable to...
Author: Saurabh Somani Date: 09/23/2015
WCF: Net.Pipe - Endpoint not found exception - Admin/Non Admin mode
Issue Definition: Following error reported from client app calling the WCF service over net.pipe....
Author: Saurabh Somani Date: 09/08/2015
WCF: Client Certificate Sample/POC Using MakeCert.exe
Issue: I came across one customer who was working on a POC project to demonstrate the usage of...
Author: Saurabh Somani Date: 08/27/2015
WCF: Unable to add service reference - System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission' failed" - after installing KB 2938782
Issue: Client app: Console Application running with Partial Trust Functionality broken: Add Service...
Author: Saurabh Somani Date: 08/20/2015
WCF: Time to learn SPN with WCF Kerberos Delegation
What is Kerberos Delegation: Kerberos Delegation allows us to reuse the client credentials to access...
Author: Saurabh Somani Date: 08/12/2015
WCF: Delegation at Message Level security
Basics: Review this article to get familiar with basic settings needed for WCF delegation....
Author: Saurabh Somani Date: 05/27/2015
WCF: WCF (xmlSerialization) dropping certain properties of an object during serialization
Task: To consume the JavaService from a WCF client application. Issue: WCF Client using XML...
Author: Saurabh Somani Date: 04/24/2015
WCF: Unable to handle load (SSL and client cert authentication) - MaxPendingAccept limitation
Issue Definition: WCF unable to handle load from multiple client when running with (Transport...
Author: Saurabh Somani Date: 04/17/2015
ASMX: Event code: 3005 : InvalidOperationException : Request format is unrecognized for URL unexpectedly ending in '/URL'.
Issue Definition ASMX web service hosted over IIS. Intermittently we observe following error being...
Author: Saurabh Somani Date: 04/17/2015
WCF: Concept of FLAT WSDL
Ask: Java Client (Non.Net client) unable to consume the WCF service WSDL document. Reason: After...
Author: Saurabh Somani Date: 04/13/2015
Custom Binding: Unified solution for many problems.
Custom Binding: Unified solution for many problems.
Author: Saurabh Somani Date: 04/24/2014
Reading/Understanding - Signed Soap Envelopes
Hope this help in understanding/reading the signed soap envelopes !
Author: Saurabh Somani Date: 04/24/2014
WCF: REST WCF Integration with HTML 5 and Windows 8 Store Applications
Issue: I happen to work with this customer where they required to consume the REST WCF service...
Author: Saurabh Somani Date: 02/11/2014
WCF: Discover In WCF World
What is service identity in WCF WSDL ? For normal basicHttpBinding we use one directional...
Author: Saurabh Somani Date: 01/13/2014
WCF: INTEROP - SCENERIOS
WCF: INTEROP Pushpa Yadav (Microsoft India GTSC)...
Author: Saurabh Somani Date: 07/11/2013
WCF: Observing Message ProtectionOrder
WCF: Observing Message ProtectionOrder Objective 1: Impact of Protection Order Objective 2: How to...
Author: Saurabh Somani Date: 05/07/2013
WCF: Dual Layer Encryption (Message + Transport)
WCF: Dual Layer Encryption (Message + Transport) What I want to do ? I want to encrypt the Message...
Author: Saurabh Somani Date: 05/03/2013
Live Debugging - Manage Code
Live Debugging - Manage Code Introduction: We will learn how to use windbg to perform Live debugging...
Author: Saurabh Somani Date: 04/18/2013
WCF: Debugging WCF Throttling
Behavior: w3wp process stops responding to the incoming request and recycling app pool fixes the...
Author: Saurabh Somani Date: 01/23/2013
WCF: Transport Layer Security - with client certificates
WCF-Transport Layer Security - with client certificates Requiremnt: HTTPS/SSL Channel Authentication...
Author: Saurabh Somani Date: 11/23/2012
WCF: Handling multiple IIS bindings
WCF: Handling multiple IIS bindings - This collection already contains an address with scheme http...
Author: Saurabh Somani Date: 11/21/2012
WCF: Transport Security with User Name + Client Certificate
WCF: Transport Security with User Name + Client Certificate Vast world of WCF provides endless...
Author: Saurabh Somani Date: 09/14/2012
WCF: Learning Impersonation and Delegation
Configure DC: Please follow link to configure your domain controller....
Author: Saurabh Somani Date: 08/28/2012
WCF: Troubleshooting Socket Abort Errors
WCF: Troubleshooting Socket Abort Error...
Author: Saurabh Somani Date: 08/16/2012
WCF: Create client proxy – For WCF service running on SSL – with client certificate
WCF: Create client proxy – For WFC service Running On SSL – With Client Certificate...
Author: Saurabh Somani Date: 07/31/2012
WCF: Learning Impersonation
Learning Impersonation in WCF services What is Impersonation ? Ability of a thread to execute in a...
Author: Saurabh Somani Date: 07/16/2012