Changing the Fiddler Proxy Username and Password

Question

I use Fiddler to set the proxy server, but when I enable the "Require proxy authorization" in the rules menu, the username / password is always 1. How do I change the username / password?

I tried changing oSession ["X-AutoAuth"] = "username: password"; but it does not change the required proxy credentials.

I can not find anything in the documentation regarding this ...

Answer 1

The X-AutoAuth refers to which credentials Fiddler sends to the upstream server when it automatically answers an authentication call; this does not affect which credentials are required from the user.

This question was originally asked and answered here: https://groups.google.com/forum/#!topic/httpfiddler/pErxaOtMlyc

You can change the credentials expected by Fiddler by setting the preference fiddler.proxy.creds to base64 encoding username:password . The default value is MToX , which is a base64 encoded string of 1:1 . You can calculate the base64 value you need using the "Tools"> "TextWizard" function in Fiddler.

To refresh your preference, click in the QuickExec field below the list of Fiddler web sessions and type prefs set fiddler.proxy.creds YOURBASE64StringHere and press Enter.