Posted by: Anonymous Coward
on January 31, 2007 10:37 PM
>> So nowadays the delivery of Web pages is the job of DNS?
I suspect he's saying that web pages will return faster because the DNS request will be faster.
If that is true, then I agree with that statement. What I don't agree with is that their doing so is unique or that they were particularly clever in doing so. IP anycast has been in use for years on most of the root servers, and many other DNS servers as well. In a nutshell you give geographically distributed servers the same IP address and advertise them into the global routing table from different peers. Because there can be only one route in the IP routing table, each BGP router in the Internet picks the fastest route.
The auto correction of mispelled URLs reminds me of when Verisign put wildcards at the root level to do something similar. That didn't last long because of public outcry.
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Re:Wow.
Posted by: Anonymous Coward on January 31, 2007 10:37 PMI suspect he's saying that web pages will return faster because the DNS request will be faster.
If that is true, then I agree with that statement. What I don't agree with is that their doing so is unique or that they were particularly clever in doing so. IP anycast has been in use for years on most of the root servers, and many other DNS servers as well. In a nutshell you give geographically distributed servers the same IP address and advertise them into the global routing table from different peers. Because there can be only one route in the IP routing table, each BGP router in the Internet picks the fastest route.
The auto correction of mispelled URLs reminds me of when Verisign put wildcards at the root level to do something similar. That didn't last long because of public outcry.
Sean
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