Download DNSCryptĭNS Crypt is available for Windows ( Microsoft. We have always used various techniques to thwart this, but none as iron-clad as simply encrypting all the communication between you and OpenDNS. Worse, sophisticated attackers can modify responses and redirect you to malicious sites. OpenDNS founder and CEO David Ulevitch clarifies on why you should use DNSCrypt.Īnyone who knows what they’re doing can eavesdrop on your Internet activity and see exactly which domains you are resolving, and in many cases, what websites you’re visiting. In the same way the SSL turns HTTP web traffic into HTTPS encrypted Web traffic, DNSCrypt turns regular DNS traffic into encrypted DNS traffic that is secure from eavesdropping and man-in-the-middle attacks. OpenDNS, during the announcement of DNSCrypt, explains, The attacker can redirect web traffic, email, and other important network data to systems under the attacker’s control. The attacker may take you to an entirely fake site, without you even noticing anything fishy going on.
For example, if your network is in control of a DNS cache poison attacker and you wanted to visit the official PayPal website. In a cache poisoning attack, an attacker can cause a name server’s clients to contact the incorrect, and possibly malicious, hosts for particular services. One of the worst example of a DNS-based attack is cache poisoning attack. Encryption of the DNS queries prevents any spying, eavesdropping by third-parties (like your ISP), spoofing or man-in-the-middle attacks. DNSCrypt encrypt all your DNS queries between your browser and OpenDNS. Now that you have an overview of DNS, you’ll, hopefully, be able to understand why you should use DNSCrypt. DNS in the real world ( Image Source: Wikipedia)
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