Saturday, December 5, 2009

Google offers its own DNS

Google is developing its own DNS service for free. Google continues to work for the good of the Web. After all logic when there is this much, and what benefits the Web ultimately benefits Google. A kind of quid pro quo. The Mountain View company has announced Thursday the launch of its own DNS service for free: Google Public DNS.

The protocol for DNS Domain Name System is an essential infrastructure of the Internet that allows for the correlation between an obscure IP address and domain name more explicit for the average user. At each visit a website via a browser, a DNS lookup is made. Research or research before rather than a page a bit complex is loaded in its entirety. According to Google, a user generates hundreds of DNS queries each day and browsing experience may take longer.

Generally, these are the ISPs to the Internet that support the DNS service for the customer seeking the servers run by agencies such as ICANN with global reach. Com. Public DNS with Google, Google wants to take his hand in doing the work of the ISP.

With a method of preloading (prefecthing), Google Public DNS is able to respond more quickly to queries DNS: "before the end of life (TTL) of a recording, we constantly update, asynchronously and independently of the queries users for many popular areas.

Fast but safe with the implementation of a method of protection against attacks of DNS cache poisoning. Google Public DNS does not mean protection against malware. Google's service also operates any kind of filtering or blocking. No redirection nor in case of typos for a service that is intended in accordance with standard DNS.

Involve a little more in Google's Web browser can give some sweat, and always the risk of a drift Big Brother to which Google responded by stating that only strictly necessary information is retained. The temporary logs that contain IP addresses are deleted within 24 to 48 hours, while the logs held longer (for security reasons and to improve the service) are unidentified. Nevertheless, there is no correlation with other services (web search, advertising), Google provides.

Google is not alone in offering such a service and there are particular OpenDNS. Also free OpenDNS operates cons by a redirect in case of input error with the appearance of ads.

For now, Google Public DNS is still at an experimental stage. To test by entering the DNS settings for its network configuration address of one of two available servers: 8.8.8.8, 8.8.4.4.

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