Hello,

I am trying to monitor the WCF calls from a .NET application to a .NET service. Both are company internal but not owned by my team, so I can't change them. Both are running on my machine. The calls are sent via HTTPS. The requests are mostly using the machine name but some are also done to localhost. Is there any way to achieve what I need? I tried already about 100 different configurations, reinsured that the certificates are installed everywhere and so on. 

As Gateway I have set System Proxy but there is no such proxy.

In the session list I have connect entries and nothing else from the application I am interested in. But I am able to monitor the calls when opening the corresponding web pages e.g. and I also see multiple other requests from various applications.

In the Fiddler Log I have plenty of messages like these:

13:23:14:3506 [Fiddler] No HTTPS request was received from (xxxx) new client socket, port xxx.
13:23:19:3946 !SecureClientPipeDirect failed: System.IO.IOException Authentication failed because the remote party has closed the transport stream. for pipe (CN=xxxx, O=DO_NOT_TRUST_BC, OU=Created by http://www.fiddler2.com)

I also tried setting

<defaultProxy>
      <proxy bypassonlocal="false" usesystemdefault="true" />
</defaultProxy>

in the client application config but that didn't help either.

I checked really a lot of threads here and on SO and I couldn't figure it out. I would be grateful for any advice.

Android 7.0 

Using Fiddler as a proxy to decrypt https traffic from a browser on the phone works ok. However, when using some apps I get:
Trust anchor for certification path not found

Is there a way around this?

 

before i use fiddler, there is no certificate in my pc,

when i use fiddler to decrypt https traffic,operate like picture 1.png,,there are three certificates in my pc,picture 2-1,2-2,2-3

 

how to remove certificates from pc?

i operate like picture 3-1.png，，，but still have one certificate in my pc,picture 3-2.png  why?

Im trying to decrypt the traffic from an application that used to work in the past months without any issue, however today when i tried to view the traffic i just saw this error in fiddler:

 

fiddler.network.https> HTTPS handshake to 104.28.25.251 (for #73) failed. System.Security.Authentication.AuthenticationException A call to SSPI failed, see inner exception. < The message received was unexpected or badly formatted

Win32 (SChannel) Native Error Code: 0x80090326

 

Im not sure what im supposed to do here, seems like there is an issue with the Protocols that its using?

---------------------------
Initialization of CONFIG Failed
---------------------------
Fiddler has encountered an unexpected problem. If you believe this is a bug in Fiddler, please copy this message by hitting CTRL+C, and submit a bug report at http://www.telerik.com/forums/fiddler.

'.š' tür başlatıcısı özel durum döndürdü.

Type: System.TypeInitializationException
Source: Fiddler
   konum: Fiddler.FiddlerApplication.()

   konum: Fiddler.CONFIG..cctor()

System.TypeInitializationException: 'š.š' tür başlatıcısı özel durum döndürdü. ---> System.IO.FileNotFoundException: 'Analytics, Version=1.0.20182.27266, Culture=neutral, PublicKeyToken=2b2cea67609c9510' dosyasını veya bütünleştirilmiş kodunu ya da bağımlılıklarından birini yükleyemedi. Sistem belirtilen dosyayı bulamıyor.

   konum: š.š..ctor()

   konum: š.š..cctor()

   --- İç özel durum yığını izlemesinin sonu ---

   konum: .š..ctor()

   konum: .š..cctor()
Fiddler v5.0.20202.18177 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 10.0.18363.0] 
---------------------------
Tamam   
---------------------------

---------------------------
Awww, Fiddlesticks!
---------------------------
Fiddler has encountered an unexpected problem. If you believe this is a bug in Fiddler, please copy this message by hitting CTRL+C, and submit a bug report at http://www.telerik.com/forums/fiddler.

При объединении возникла одна ошибка объединения. Основная причина изложена ниже. Просмотрите свойство CompositionException.Errors для получения дополнительных сведений.



1) Отказано в доступе



Результат: Произошло исключение при попытке создать экземпляр типа "Telerik.NetworkConnections.NetworkConnectionsManager".



Результат: Невозможно активизировать элемент типа "Telerik.NetworkConnections.NetworkConnectionsManager".

Элемент: Telerik.NetworkConnections.NetworkConnectionsManager -->  Telerik.NetworkConnections.NetworkConnectionsManager -->  AssemblyCatalog (Assembly="Telerik.NetworkConnections, Version=0.1.2.0, Culture=neutral, PublicKeyToken=67cb91587178ac5a")



Результат: Не удается получить экспорт "Telerik.NetworkConnections.NetworkConnectionsManager (ContractName="Telerik.NetworkConnections.NetworkConnectionsManager")" из части "Telerik.NetworkConnections.NetworkConnectionsManager".

Элемент: Telerik.NetworkConnections.NetworkConnectionsManager (ContractName="Telerik.NetworkConnections.NetworkConnectionsManager") -->  Telerik.NetworkConnections.NetworkConnectionsManager -->  AssemblyCatalog (Assembly="Telerik.NetworkConnections, Version=0.1.2.0, Culture=neutral, PublicKeyToken=67cb91587178ac5a")



Type: System.ComponentModel.Composition.CompositionException
Source: System.ComponentModel.Composition
   в System.ComponentModel.Composition.Hosting.CompositionServices.GetExportedValueFromComposedPart(ImportEngine engine, ComposablePart part, ExportDefinition definition)

   в System.ComponentModel.Composition.Hosting.CatalogExportProvider.GetExportedValue(CatalogPart part, ExportDefinition export, Boolean isSharedPart)

   в System.ComponentModel.Composition.Primitives.Export.get_Value()

   в System.ComponentModel.Composition.ExportServices.GetCastedExportedValue[T](Export export)

   в Fiddler.Proxy.() в C:\Jenkins\Fiddler_Windows\workspace\FiddlerCore\FiddlerCore.Shared\Common\Core\Proxy.cs:строка 283

   в Fiddler.Proxy..ctor(Boolean isPrimary, ProxySettings upstreamProxySettings) в C:\Jenkins\Fiddler_Windows\workspace\FiddlerCore\FiddlerCore.Shared\Common\Core\Proxy.cs:строка 210

   в Fiddler.frmViewer.‹•(String[] ˆ•) в C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Fiddler.Shared\Viewer.cs:строка 3339

   в Fiddler.frmViewer.‡•(String[] ˆ•) в C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Fiddler.Shared\Viewer.cs:строка 3164


Fiddler v5.0.20202.18177 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 6.1.7601 Service Pack 1] 
---------------------------
ОК   
---------------------------

Hi All, 

I'm using Fiddler 5.0.2.   And filter rules were set to make Fiddler show only specific Hosts session.  However, the rules does not work for error code session. All error code sessions, no matter what its host is, will be displyed in session window. Such as 404 code and 504 code. How can I solve it?

Any help is highly appreciated.Thanks in advance.

 

Hello,

 

Version 5.0.20202.18177 fails to completely uninstall leaving an entry in the control panel, that when clicked pops up a dialog window stating there is no app associated with it.  How do I remove the entry for this version of the program. I have tried re-installing and un-installing the current version.

 

thank you,

stephen

I have switched on "Require Proxy Authentication", as I understand it this would accept a default username:password combination of 1:1.  In my application if I configure the httpclient proxy settings in my application with 1:1 it lets me through, if I configure it with 1:2 it doesn't, so all as expected there, but if I send 1:1Iamabadpassword then it appears to let me through. 

In the auth inspector I can see that the decoded user/pass combination is the same as I pass from the client application.

Am I missing something?

Thanks

Mark

I am trying to look at the traffic using the latest version of Fiddler Everywhere (I can't figure out how to find the version number), but no traffic is being captured.  The switch on the tab is slid to the right and it says, "(Capturing)", but nothing is being displayed.  I've tried multiple times and tried closing and reopening my browser, Chrome, but nothing is being shown.  Any ideas on what is wrong?