Lou: DNS root server Upgrade

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There is an old and fierce topic recently: May 5, the global 13 root domain Servers, led by ICANN, the United States Government and VeriSign, will usher in a DNSSEC upgrade. The DNSSEC upgrade inserts a digital signature into the DNS request response to the Internet user to ensure that the returned domain address is not tampered with. Now on the east coast of Australia has begun to upgrade, read the comments there, most of them said little change.

What does this piece of news mean?

1: If you enter the sina.com.cn domain name, but enter the lusongsong.com description Sina was hijacked by me, later those who hijacked DNS, will be diverted or unemployed, Baidu this year is because the DNS server was attacked, so I turned to write a blog.

2: Now what will be "card", ID card, Diploma, marriage certificate is not much, now the United States also learn to us, to your DNS request to insert a digital signature card, of course, the advantage is that you entered the domain name is certainly correct.

3: Unknowingly you travel around the world, the beauty of DNS lies in the request to a root server did not receive a response, the user's computer in the DNS parser simply so that the 13 root server cluster along the same requirements until a satisfactory reply. So, each time you enter the domain name, you will travel around the world once.

4: A friend with a separate domain name may have to do a card, dnssec online, the owner of the domain name to generate their own domain name "certificate" and to the DNS server deployment, but perhaps these things ICANN will help you do.

5: Would you pay to upgrade your computer in order to install Windows7? Similarly, a similar problem is thrown at the network administrator, and because of the increased UDP protocol, some older software and hardware devices will not support 2KB packets (originally 512 bytes). In order to increase the DNS response speed, will you pay for the upgrade? Experts welcomed ".

6: You may not be able to access most of the Web site, can be accessed by the cache, this subregion to continue for some time, as if I blog to do DNS acceleration, once the new replacement Dns,dns cache will continue to be inaccessible.

7: There are other unknown secret also in the ranks of the upgrade ...

8: This story tells us, you in spite of toss, the Internet root in my American hand, I upgrade do not have to call you report.

Small knowledge, the role of DNS server in the Internet is: to transform the domain name into a network can identify IP address, DNS provides the domain name resolution to IP services, so we only need to enter the Internet domain name and do not need to enter the IP address.

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