Forum Thread: How Do I Track Someone Hiding Behind Proxy?

i think what you are talking about is a DNS leak. unless you have access to the DNS server's records, there is no way you can know who connected to the DNS server. well you could do traffic sniffing, but therefor you would need to be inside the network of the DNS server, which is hard (but not impossible).

on-topic: the only way to track someone down behind a proxy is if you have access to the records the proxy keeps or if you have access to the proxy itself.

sure, like i mentioned above, you could get into the network of the proxy and do some MiTM. surprisingly, many proxies are vulnerable (unlike DNS servers which are mantained by ISP's most of the time), so you could always try to exploit a node on the network of the proxy, or the proxy itself.

just take note that this is ILLEGAL

hope i helped

-Phoenix750

"What this does

Firefox and Chrome have implemented WebRTC that allow requests to STUN servers be made that will return the local and public IP addresses for the user. These request results are available to javascript, so you can now obtain a users local and public IP addresses in javascript. This demo is an example implementation of that.

Additionally, these STUN requests are made outside of the normal XMLHttpRequest procedure, so they are not visible in the developer console or able to be blocked by plugins such as AdBlockPlus or Ghostery. This makes these types of requests available for online tracking if an advertiser sets up a STUN server with a wildcard domain."