Prevent IPv6 DNS contamination and Cache Poisoning: query DNS using TCP protocol

Due to some well-known reasons, IPv6 DNS queries are also contaminated. In the past, when IPv6 was used alone, it would be easier for researchers in colleges and universities to access the Internet simply and scientifically. But Cocoa thought of a good way to brush his teeth last night. I would like to share with you: PPrinciple:Generally, DNS queries are performed over UDP. However, some DNS servers receive TCP requests (such as Google Public DNS ). Currently, widow wang only pollutes UDP traffic on port 53, TCP traffic is left unattended (Cocoa guesses that this is unrelated to some digital products that use the 53-port hidden channel to transmit user privacy ). Therefore, we can build a DNS proxy on the local machine and use the TCP protocol to query the Google Public DNS. After obtaining the proxy, we can use UDP to transmit it to the local machine. Tests show that this can prevent IPv6 DNS contamination. Usage: If your machine has Python: Download Python source code: http://www.bkjia.com/uploadfile/2013/0305/20130305104119956.rar
Run "python tcpv6dns. "py" (remember to run it every time you start the system, otherwise it will not be accessible to the Internet. We recommend that you save it as a batch and add it to the Startup menu) set the local DNS server address to 127.0.0.1 to freely access the internet. If your machine does not have Python installed, download the Cocoa package exe: http://www.bkjia.com/uploadfile/2013/0305/20130305104119554.rar each boot run will be the local DNS server address set 127.0.0.1 free access thanks: IPv4 TCP query DNS code from here: https://github.com/henices/Tcp-DNS-proxy Cocoa changed it to the IPv6 version, I would like to express my gratitude to the original author.