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Defeating DNS Based Filtering (Sky, BT etc) with DNSCrypt

Several of the “Big Five” ISPs utilise a form of filtering that intercepts DNS requests and spoof replies for sites that are on the block list, in certain cases if you are able to resolve the IP address out-of-band (e.g. a hosts file) then you can browse uninterrupted.

We already know that most ISP implementations of filtering cannot intercept and block SSL protected HTTP traffic and in the same way DNSCrypt turns regular DNS traffic into encrypted DNS traffic that is secure from eavesdropping and man-in-the-middle attacks.

It doesn’t require any changes to domain names or how they work, it simply provides a method for securely encrypting communication between people and our OpenDNS’ servers.

The DNSCrypt code base is open source and it’s available on GitHub.

Download for Mac
Download for Windows
Linux can be installed via your favourite package manager

Once installed just set your DNS server to be 127.0.0.2 and you should be set to go.

If you have any issues or need more help with installation check out; http://dnscrypt.org/

Anti Internet censorship trouble maker.

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