Check / remove proxies from iPhone USB Personal Hotspot I installed Charles Proxy to do some testing, later I disocvered that any traffic going through Personal Hotspot is also routed though to a local port. I've remove the Mac OS X proxy settings, but unless I have Charles open, I cannot connect over HTTP.

I have checked System Preferences > Network and there's no trace of any proxy settings. Can I use any command line tools to list and remove proxies?
Old question but for anyone else that hits this problem:

Within Terminal.app issue the command:

networksetup  -setwebproxystate iPhone\ USB off


Afterwards, you can check that is disabled by using:

networksetup -getwebproxy iPhone\ USB


This should return Enabled: No Server: 127.0.0.1 Port: 8888