Fiddler can not capture packet not from browser

[yyyyyy]

I try to study fiddler recently and there are some problems. I need you help!! Thank you!!

I download a SDK from github and compile and run it on my computer. One of its samples is used to dynmic register and has TLS/Https connection with the cloud. When I run this sample, I cannot find any related packets from Fiddler, but I can capture the data packet from Wireshark.

I have configured the proxy server and port as it required: 127.0.0.1:8888.

So how can I capture the data packet of the SDK sample from Fiddler??

I need your help!! Thank you!! QWQ

[yyyyyy]

The sample is compiled in VS2019 and the computer system is Windows10

[Kammen]

Hello,

You can try to use the following addres:

http://machinename:8081/mytestpage.aspx. 

 

instead of 127.0.0.1

For more details, check this article.

Regards,
Kammen
Progress Telerik

[yyyyyy]

First, thank you very much for your answer. But I study it recently and could you please talk more details?

I modify the proxy server with the address is the laptop IP address which runs the fiddler and the port is 8888.

When I visit the browser, the fiddler can capture the data flow. But when I run the program to connect with the cloud server, the fiddler has nothing about that.

I'm very confused the reason and how can I capture the data flow between my program and the cloud server.

Thank you again !!!!

Looking forward to your reply!!!!

[Kammen]

Hello,

It seems that I've sent the wrong link. Here is the correct one: https://docs.telerik.com/fiddler/Configure-Fiddler/Tasks/MonitorLocalTraffic

 

About your question - Fiddler is basically a proxy, so you should be sure that your application is using the machine's proxy settings in order the traffic to be visible in Fiddler.

 

Hope this helps.

Regards,
Kammen
Progress Telerik