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    Highlights of the ICANNWatch Archive
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    This discussion has been archived. No new comments can be posted.
    Where Did the .root TLD Come From? | Log in/Create an Account | Top | 26 comments | Search Discussion
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    The 13 Root Servers No Longer Exist
    by Anonymous on Monday March 08 2004, @03:51PM (#13131)
    The 13 Root Servers No Longer Exist. Without any discussion, approvals, etc, the 32-bit IPv4 addresses of the legacy root servers are now being re-used by many physical servers. It is in an ISP's best interest NOT to route those 13 addresses. An ISP can set up a couple of internal servers to be imposters for all of those 13 addresses. This improves the performance for their customers and their other name-servers and it allows the ISP to enhance/extend/embellish the root zone. It also restores the reliability of the root servers which will not operate properly in all situations in the any-cast (imposter) arrangement that ICANN has allowed to evolve without any public input from real DNS experts. By placing strange-looking, one-of-a-kind entries in their root zone, an ISP can mark their servers to help them make sure they know which physical server they are talking to. It appears that Verisign is just marking their servers and the consensus is to use the .ROOT TLD to do that. You are free to name your imposter root servers with your own obscur name. If you are waiting for the ICANN Board's approval to do that, don't hold your breath. If you have not noticed, ICANN knows very little about the DNS and root servers. ICANN is focused on contracts and funding and opening 7 more offices around the world.
    [ Reply to This | Parent ]
    Re:The 13 Root Servers No Longer Exist
    by KarlAuerbach on Monday March 08 2004, @06:03PM (#13134)
    User #3243 Info | http://www.cavebear.com/
    Anycast is a technique of using routing information to have multiple instances of IP addresses (and hence DNS servers) on the net. This is how many of the root servers have cloned themselves.

    What you suggest about marking the zone file in order to know which server is answering would make sense except for the fact that each of the root-servers.org servers uses the *exact* same zone file, including the .root record.
    [ Reply to This | Parent ]
    Re:The 13 Root Servers No Longer Exist
    by bortzmeyer on Monday March 08 2004, @10:33PM (#13137)
    User #3933 Info
    Almost only BS in the anonymous message. Specially, people should note that anycasting the root name servers have been discussed a *lot* in many fora among DNS experts. There is a very wide consensus (among DNS experts, which do not include Jeff Williams and Jim Fleming) that anycast works fine and is a solution to many problems.

    ISC, "Hierarchical Anycast for Global Service Distribution",

    Daniel Karrenberg, "Distributing K-Root Service by Anycast Routing of", http://www.ripe.net/ripe/docs/ripe-268.html

    RFC 3258, "Distributing Authoritative Name Servers via Shared Unicast

    [ Reply to This | Parent ]

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