Re: DNS servers

From: Sean Donelan (no email)
Date: Tue Nov 06 2007 - 16:33:48 EST

  • Next message: Greg Skinner: "Re: Hey, SiteFinder is back, again..."

    On Tue, 6 Nov 2007, J. Oquendo wrote:
    > http://www.theregister.co.uk/2007/11/06/icann_rolls_out_new_root_name_server_address/

    Here is what I posted the last time.....

    To: "''" <>
    Subject: Don't Panic II (Re: updated root hints file)
    From: Sean Donelan <>
    Date: Wed, 28 Jan 2004 22:10:11 -0500 (EST)

    The previous change to the root hints was November 5 2002. The previous
    change was five years before that. The root hints changes do not
    require any immediate changes by most Internet users. As long as at least
    one of the IP addresses in your root.zone hints file responds, your name
    server will automatically use the current set of root name servers.
    Historically it has taken over 10 years to change all the IP addresses in
    the root hints file. Past performance is not a guarantee of future
    performance, but it is likely the root hints will continue to be very
    stable and change slowly.

    Client resolvers (i.e most Windows and other end-user machines) use
    either their ISP or organizations name servers. Most end-users do not
    need to make any changes. ISP or organization system administrators
    will update the main name servers for their users.

    Software developers and operating system vendors distributing Name Server
    programs will need to update the hints file included in their software
    distribution sometime before the last IP address in the hints file
    changes.

    Operators of resolving name servers will need to update the hints file
    on their systems, or it may be updated as part of the future vendor
    software update, sometime before the last IP address changes. Until
    the hints file is updated, some versions of Domain Name System software
    will print periodic warnings in the system log to remind the system
    administrator to check the hints file.

    Operators of "shadow" or alternative roots will need to update their
    configurations. Since this is more or less outside the DNS, it is up to
    those operators to ensure consistent operation.

    Network operators using "golden networks" to control route flap dampening
    will need to update their BGP dampening configuration for the new address
    and to remove the old address. Until updated, dampening may incorrectly
    ignore routes to the new address during periods of network instability.
    In practice, this is a rare occurance and the other root servers will
    still be configured.


  • Next message: Greg Skinner: "Re: Hey, SiteFinder is back, again..."





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