Re: [fw-wiz] PIX, DNS fixups and Zone Transfers

From: Luca Berra (bluca_at_comedia.it)
Date: 05/27/03

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    To: firewall-wizards@honor.icsalabs.com
    Date: Tue, 27 May 2003 17:03:59 +0200
    

    On Mon, May 26, 2003 at 09:55:50PM +0200, Bruce Smith wrote:
    >Thus arises our problem. Our DNS zones have one primary and 4 secondaries,
    >three of which are on separate sites and continents. Now when they do a zone
    >transfer of our zones, the mapped IP addresses are NOT changed in the zone,
    >so looking up on those zones brings up the new IP address, not the old. That
    >IP isn't visible on the 'Net. We hacked around the problem by giving each
    >machine two names, eg dns1.domain.com and dns1r.domain.com. dns1.domain.com,
    >the address known to the world at large, maps to the old IP.
    >dns1r.domain.com is the new one. By some careful juggling of several crates
    >of eggs, this is working, for the moment. However it is a precarious
    >position to be in.
    you don't state which DNS server you are using, but BIND version 9
    supports views (you can answer using differeny db files depending on the
    query source), which could be just what you need.

    regards,
    L.

    -- 
    Luca Berra -- bluca@comedia.it
            Communication Media & Services S.r.l.
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