SUMMARY: The latest named.root file

From: Warren Liang (warren.liang_at_cox.net)
Date: 11/28/05

  • Next message: bigadmin: "iscsi" 
    To: <sunmanagers@sunmanagers.org>
Date: Mon, 28 Nov 2005 16:38:48 -0500

    Hello:

    Received many great responses, like to share the following:
    ======================================
    >From Bob Windsor, Dale Ghent, and Mathew Sams:

    You can always get the latest root hints file by executing:
    dig @a.root-servers.net ns . > named.root
    It rarely changes, so it's totally conceivable that the last change was january 2004.
    ======================================-=
    >From Bill Williams:
            nslookup -query=any ROOT-SERVERS.net
    ROOT-SERVERS.net
            origin = a.ROOT-SERVERS.net
            mail addr = nstld.verisign-grs.com
            serial = 2004012900
            refresh = 14400
            retry = 7200
            expire = 1209600
            minimum = 3600000

    The SOA date (serial = 2004012900) would indicate that it is.
    ============================================
    >From Crist Clark:
    Yes and no. But it really doesn't matter. As long as a few of the root servers are OK, your name server should be able to get the latest root zone from them. That's why it is called a "hints" file. Your server just needs some hints where to start looking for the root zone.
    You have the latest hints file.

    However if you look at the root zone,
            $ nslookup -type=soa .

    You should find the latest serial to be 2005112701. But the root zone contains a lot besides the hints, delegations for the gTLDs, ccTLDs, etc. plus all of their glue.
    ===================================
    Thanks again.
    Warren
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