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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Fiddler’ Category

kdzwinel/betwixt: Web Debugging Proxy based on Chrome DevTools Network panel.

Posted by jpluimers on 2018/03/14

This is a great complimentary tool to Http Fiddler on Windows and Mac OS X, and the only tool on Linux (that is not covered by Http Fiddler): kdzwinel/betwixt: Web Debugging Proxy based on Chrome DevTools Network panel.

–jeroen

Posted in Development, Fiddler, Software Development, Web Development | Leave a Comment »

Reminder to self – Fiddler for OS X Beta

Posted by jpluimers on 2018/01/11

Reminder to self: [WayBackFiddler for OS X Beta as it’s been on my list since about a year ago: Fiddler for OS X Beta « The Wiert Corner – irregular stream of stuff.

Note that reading the cerficicates can be done in a more simple way for the Current version of Mono:

/Library/Frameworks/Mono.framework/Versions/Current/bin/mozroots --import --sync

I forgot in which version the Mono installer has Current linked to the most recently installed Mono version but it works well.

Executing should then be somethig like this:

/Library/Frameworks/Mono.framework/Versions/Current/bin/mono ~/bin/fiddler-mac/Fiddler.exe

I expect quite some bit of trouble decrypting HTTPS [Arvhive.is] as that was troublesome on Windows in the early Fiddler days as well.

In case of trouble, there is always Fiddler IdeasCustomer Feedback for Fiddler by Telerik . Add a new product idea or vote on an existing idea using the Fiddler by Telerik customer feedback form via [WayBackTsviatko Yovtchev: “@jpluimers @ericlaw https://t.co/lRNXC88M1b is our feature suggestion/issue tracker portal. Fiddler itself notifies on new versions.”

Back to the reminder: [WayBack] Fiddler for OS X Beta.

Direct download https://telerik-fiddler.s3.amazonaws.com/fiddler/fiddler-mac.zip.

Downloading Fiddler for OS X Beta…

If your download does not start, please [WayBackclick here to retry


Getting started

  1. If you don’t have the Mono framework installed on your Mac

    Please download it from [WayBackhttp://www.mono-project.com/download/#download-mac and install it. If you already have it installed, ensure you’re running the latest version.

  2. If you just installed Mono

    Please open Terminal and type in:

    /Library/Frameworks/Mono.framework/Versions/<Mono Version>/bin/mozroots --import --sync

    (The Mono framework has its own trusted root certificates store. Currently (at mono version 4.2.4) this store remains empty after installing Mono on OS X. Fiddler uses the certificates in this store to validate the certificates of the websites visited. So you need to populate this store with a set of commonly trusted root authorities to avoid getting constant certificate warnings from Fiddler. The mozroots tool imports trusted authorities from the Mozilla LXR. )

  3. Extract fiddler-mac.zip to a folder you have write access to.

    It is recommended that the full path to Fiddler install folder does not contain any Windows path illegal characters. (At present it is possible that some Fiddler functionality, e.g. various file exports or Fiddler Script won’t handle such paths.)

  4. Open Terminal and navigate to the folder you extracted to in step 3.

  5. Type mono Fiddler.exe in Terminal.

To further understand the benefits and limitations of Fiddler for OS X please visit [WayBackthis blog post.

–jeroen

Posted in Development, Fiddler, Software Development, Web Development | Leave a Comment »

Fiddler2 direct download

Posted by jpluimers on 2017/06/06

For automated installs that cannot have UI interaction:

The install is “per user” as it is a user-local application; it installs in %LocalAppData%\Programs\Fiddler\Fiddler.exe.

Docs

Note that Fiddler acts as a HTTP proxy. When Fiddler starts, it hooks itself into the default WinINET proxy (which is used by any tool using the WinINET API, including Edge, Internet Explorer, Chrome, but not FireFox).

If you kill your Windows machine before stopping Fiddler, it cannot restore the WinINET proxy, so you have to do that by hand (otherwise you cannot browse web pages any more).

Manual restore:

  1. Run "C:\Windows\System32\rundll32.exe" shell32.dll,Control_RunDLL inetcpl.cpl,,4
  2. Press “LAN settings” (Dutch: “LAN-Instellingen”)
  3. Uncheck the proxy server checkbox “Use a proxy server for your LAN” (Dutch “Een proxy-server voor uw LAN gebruiken”)
  4. Confirm
  5. Close the control panel wizard

–jeroen

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Fiddler for OS X Beta

Posted by jpluimers on 2016/11/03

–jeroen

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NTLM and Kerberos Authentication for a WebRequest and a WebProxy

Posted by jpluimers on 2016/02/16

This was very useful to get a WebClient with a WebProxy configured to use a proxy server that is based on NTLM authentication.

The note in the MSDN NTLM and Kerberos Authentication. documentation however was totally wrong.

String MyURI = "http://www.contoso.com/";
WebRequest WReq = WebRequest.Create MyURI;
WReq.Credentials = CredentialCache.DefaultCredentials;

Note NTLM authentication does not work through a proxy server.

This code works perfectly fine as the CredentialsCache.DefaultCredentials contains your NTLM or Kerberos credentials.
It even works when you have a local Fiddler http proxy as a facade in front of your NTLM proxy.

Read the rest of this entry »

Posted in .NET, .NET 2.0, .NET 3.0, .NET 3.5, .NET 4.0, .NET 4.5, C#, C# 2.0, C# 3.0, C# 4.0, C# 5.0, C# 6 (Roslyn), Development, Fiddler, Software Development, Web Development | Leave a Comment »

 
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