Installing and Configuring Fiddler

Installing and Configuring Fiddler

Fiddler is a diagnostic tool that you can use to view and troubleshoot communication between Universal Migrator and cloud-based systems.  Fiddler must be running PRIOR to opening the application you wish to diagnose.  Therefore, you must close Universal Migrator prior to launching Fiddler.  Ensure Fiddler is running and configured using the instructions below, prior to re-launching Universal Migrator.

First-Time Fiddler Setup

The first time you run Fiddler, there is some extra setup you must do.

  1. Launch Fiddler from inside Universal Migrator.
  2. If Fiddler is not installed, a web browser will open and start downloading it. Click Open File to install Fiddler.
  3. Click Yes
  4. Click I agree
  5. Click on Windows and search for Fiddler
    Click Open
  6. In the dialog that appears, click Cancel
  7. Click on Rules and ensure the following options are checked:
          -Hide Image Requests
          -Hide CONNECTS
          -Remove All Encodings
  8. Click Keep and change it to 1000 Sessions. 
  9. Click on Tools > Options
  10. On the Options window, click on the HTTPS tab and Check "Decrypt HTTPS Traffic".
    A series of prompts will appear.  Allow them all.
  11. Click on the Protocols text.
  12. In the dialog that appears, set it to the following value: 
    1. <client>;ssl2;ssl3;tls1.0;tls1.1;tls1.2


  13. Click OK to close all dialogs.
  14. (OPTIONAL)  Apply a filter by clicking on Filters > Use Filters > Show Only the Following... and providing a value that represents the API host name you need to troubleshoot:

    • Related Articles

    • Installing and Configuring HyperV

      If you work on more than one migration at a time we recommend setting up a VM Host workstation capable of running several Virtual Machines (VMs) at the same time. This allows you to have a dedicated virtual workstation for each migration you're ...

    • Installing Microsoft SQL Server

      This article will walk you through installing and configuring SQL Server for a migration workstation. Visit https://www.microsoft.com/en-us/sql-server/sql-server-downloads and scroll down just a bit until you see Developer and click the Download now ...

    • Creating/Viewing a Fiddler Capture

      When using Universal Migrator to inject data into a destination system, it is possible that you may run into a bug in either Universal Migrator or in the API you are injecting into. If you get API errors and the data seems correct, please sent us a ...

    • Configuring Windows

      This article will walk you through configuring Windows for use as a migration workstation. We recommend a fresh installation of windows. Configuring Windows Click the Start Menu Unpin everything except the following, by right clicking and choosing ...

    • Installing SQL Server Management Studio (SSMS)

      This article will walk you through installing and configuring SQL Server Management Studio (SSMS). If you have not already installed SQL Server, you should do so prior to installing SSMS. Visit ...