How to view http traffic on your mobile phone device via a computer proxy

This video is an excerpt from our Technical Web Testing 101 course. unow.be/at/tech...
For more details see our blog:
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You can view the HTTP traffic from your mobile device on your desktop or laptop. This video uses the Fiddler debug proxy as the example tool, but you can do the same thing with BurpSuite, and probably most other proxy tools.

[@aArcziMetin2]

I'm connected to the same Wifi and my Fiddler server works on port 8888 (I have checked it thru pc.) But after installing my mobile to proxy on same port and going to site it does not work, my internet does not response.

[@EvilTester]

Have you configured fiddler to allow other machines to connect? docs.telerik.com/fiddler/Configure-Fiddler/Tasks/MonitorRemoteMachine Have you tried any other proxies?

[@honestreview9019]

when i pointed the phone to my lpatop IP and port 8888 i couldn't browse the internet on my phone

[@EvilTester]

Hi, you'll have to do some experimentation to debug why. Is it only your phone that is affected or can other devices connect? (then it might be a problem on your phone) Do you have a firewall on the computer? Have you allowed remote computers to connect? docs.telerik.com/fiddler/Configure-Fiddler/Tasks/MonitorRemoteMachine etc...

[@HelloFromTokyo]

You have to install fiddler certificate on phone

[@e_mtb]

I've used this method for over a year, but it doesn't work anymore. Any known problems with the new fiddler version? Does it still work on your devices? All checkboxes are still active, but it will not connect to fiddler, and all websites are showing up als "not available" due to connection problems. I've no idea what has changed :/

[@EvilTester]

I mainly use mac, and have't tried fiddler for a while. Have you checked your firewall settings? I mainly seem to use BurpSuite or Owasp Zap at the moment.

[@TodiDiang]

wow grabatron, that game is very hard to find now. It can only be found using the link

[@TodiDiang]

and only in a few countries

[@vindeep1421]

what if i am using mobile data on phone not wifi

[@suniltiwari-mf9lk]

now it is not working, due to some app

[@Chandler890]

how did u vnc into your mobile phone

[@EvilTester]

I installed a vnc server on the phone. Can't remember which one. Last time I made phone videos I used airserver to cast the phone to my computer.

[@Chandler890]

EvilTester - Software Testing vmlite vnc server

[@papediouf6495]

I did all this but the trafic is not showing in Fiddler

[@EvilTester]

Does the official documentation help? docs.telerik.com/fiddler/Configure-Fiddler/Tasks/MonitorRemoteMachine

[@chrismcclune8872]

Hi, thanks for the great video. Could you possibly tell me how to then filter only the device. I am testing an iOS app and would only like it to show traffic to and from it rather than the computer Fiddler is running on too.

[@EvilTester]

+Chris McClune If you use a proxy like burpsuite or owasp zap, then it will only show the traffic you configure it to. Or try changing Fiddler Options \ Connections so that it does not "Act as system proxy on startup" and fiddle with the other options so that it doesn't pick up traffic by default but only those systems configured to use it. docs.telerik.com/fiddler/KnowledgeBase/OptionsUI

[@nsok8620]

@@EvilTester what if i use mobile network instead of wifi?

[@nsok8620]

@@EvilTester is wifi neccessary?

[@antoniospence7132]

@@EvilTester whit the right use it might can use to ic unlock phones

[@Pwnedby]

Can I stop and modify packets with this?

[@EvilTester]

Yes you can

[@Pwnedby]

OH thank you I found a different software called burp which does the same thing :)

[@EvilTester]

Yes BurpSuite is good, as is Owasp ZAP, Charles and Fiddler. Most proxies can do this, experiment with whichever one is easiest for you to use. Best of luck.

[@Pwnedby]

@@EvilTester thank you soo much. I’m gonna stick with burp suite and maybe try out other softwares. :)

[@hoangvlog4209]

Good demo

[@CoffeeBreakWithImran]

Great Video Thank you so much

[@mnageh-bo1mm]

what if i want to use it on app not browser ????

[@EvilTester]

Change the proxy settings on your app to point to the proxy - if the app is written in Java or Electron you an find out how to do that online through command line arguments, or if you are on windows it might pick up the traffic automatically - see other comments where Anshad shows how to do this from android.

[@tarickboy21]

Nice!!

[@rasimbyk1182]

How to see tv http trafic

[@EvilTester]

You might have to configure the TV to use your computer as a proxy

[@rasimbyk1182]

@@EvilTester Would you please tell me by video. Thenks