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Want to know how to setup/configure and use Fiddler to intercept Intune Traffic? Well, this is how! #Intune #MsIntune #Windows call4cloud.nl/fiddler-decr...

Greg Nottage

@gregnottage.bsky.social

3 Dec 2024

Hey Rudy, I attempted to use your guide to get Fiddler v5 classic working on a VM enrolling via Autopilot - but it refuses to accept the exported MDM cert. So I just keep getting errors where manage.microsoft.com refuses the connection. Any ideas how to get this to work? Thanks

Rudy Ooms | MVP

@call4cloud.nl

4 Dec 2024

How did you setup the rules that points to the proper cert? And are you trying it from the regular user context or system account?

Greg Nottage

@gregnottage.bsky.social

4 Dec 2024

Running it from defaultuser0 and exported the MDM cert to the documents\fiddler2\ClientCertificate.cer path. Have tried various combinations of rules but nothing seems to work? But not sure what I’m meant to put for the rules really?

Rudy Ooms | MVP

@call4cloud.nl

as mentioned in that blog:you can setup rules to ensure every URL is mapped to the proper certificate : If (oSession.HostnameIs("r.manage.microsoft.com")) { oSession["https-Client-Certificate"] = "C:\\test\\Intune.cer"; } And trying the same from system (psexec)could also work

4/12/24, 6:56 am0 reposts0 likes

Greg Nottage

@gregnottage.bsky.social

4 Dec 2024

Is that c:\test\intune.cer the exported MDM one? Why is it a different path than the one I mentioned before?