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Goal: Create a Chrome app/extension to determine value of DNS requests in local value (i.e., determine what A and CName records a local machine or its delegated resolver is returning when Chrome issues a DNS request). For example, the Chrome app would take as input "www.google.com" and return the IP of the A record.

I have thus far tried two different approaches:

(1) http://developer.chrome.com/apps/socket.htm This is very close. I am able to simulate a UDP connection on port 53. The only problem is that I don't know what the hostname is for the DNS resolver.

(2) https://developer.chrome.com/extensions/webRequest.html This is not that close to providing what I need.

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A few leads after much searching: (1) stackoverflow.com/questions/13691119/… (2) mDNS browser extension github.com/GoogleChrome/chrome-app-samples/tree/master/… –  eb80 Dec 23 '12 at 19:04

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