Hello Fiddler gang

Found this old post https://stackoverflow.com/questions/43898449/in-fiddler-is-it-possible-to-spoof-the-client-ip-address while trying to find out if there is a way of dynamically directing fiddler to send the requests thru specific IP address (I have a server with multiple IPs).

It suggest using X-EgreesIP so in my fiddler script I added:

oSession["X-EgreesIP"] = "10.10.10.123";

in my InBeforeRequest function but it doesn't seems to have any effect? by running netstat -f it still shows the main IP for establishing the connections to the remote host servers.

The same old post points to another link http://fiddler.wikidot.com/egressip where it mention that it can be configured by command but that means then ALL my requests will go thru that other configured IP, I want to programmatically be able to give a different IP based on the particular request.  Is that at all possible?

Thanks!

Good-day folks,

Hope this messages finds you all in excellent health.  So, I'm in the middle of troubleshooting some issues with a Skype for Business Server and I was instructed to acquire and install Fiddler Everywhere by my internal support team so they can analyze the HTTP traffic between endpoints.  I have been successful in downloading and installing the Fiddler Everywhere application, however, upon launch it is asking me to login or create an account.

Unfortunately, this is a problem for me because the server in question is on a Closed Network, air-gapped, with no Internet access.  Does Telerik offer an alternative to launching the application so it can run in such an environment without requiring a login?  Any help is kindly appreciated, thanks.

Hi, I've my application in Net 6 running Kester and I've a API that call a service reference of an external Web Service.

I dont find any solution with fiddler classic or anywhere to intercept request and response of that web service

I've tryed to add proxy like this

netsh winhttp set proxy 127.0.0.1:8888

But I wasnt lucky...

Any idea to solve the problem?

Thanks

I'm evaluating Fiddler Everywhere, and trying troubleshoot a java application. 

Initially Fiddler shows a warning that it cant decrypt HTTPS, so I install the root certificate into Arch and trust it, set Fiddler to use system proxy, and then set up the application to point to Fiddlers proxy.

The warning in Fiddler then disappears, so it gives the impression I've done everything right

At this point it can show HTTPS connections (although they are shown as HTTP, and METHOD is always CONNECT, rather than the GET I was expecting to see).

It's also then able to show HTTP(S) headers, but never the actual decrypted response or request body

Any help appreciated thanks

Hello, I am IT for our compnay. We have a developer who is using Fiddler on a macOS Ventura with Temp admin rights. The rights need to be engaged and only last for 60 minutes.

The developer says that Fiddler requires full admin all the time for Fiddler to adjust system proxy settings at startup.

The developer says that the mac has lost all internet connectivity because Fiddler does not have access to manage proxy settings at startup. Is this true?

Please advise. Notes from developer below

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Subject: Mac lost internet connection with Fiddler

Hi Russell, a similar situation happened again. Steps: - run "Grant admin privileges 60 min" - run "Fiddler Everywhere" - change system proxy settings
Then, after about 5-7 minutes, i got the message "Grant admin privileges 60 minutes" has expired.
I can't get "Grant admin privileges for 60 minutes" in self service. I can't restore system proxy settings without administrator.
For now i have an internet connection through Chrome and i'm logged in. Please advice on system recovery

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Subject: Mac lost internet connection with Fiddler

Hi R,

The software we have used was Fiddler 

https://www.telerik.com/fiddler

It has an option to “Act as system proxy on startup”.

So when Fiddler is launched – it requires to enter admin’s password to modify global system proxy settings. Also when you finish work and close it – once again admin’s password is required to remove global proxy settings.

Regards,

R