Re: [fw-wiz] DNS records for a firewall NAT pool

From: Barney Wolff (barney_at_databus.com)
Date: 07/30/03

  • Next message: Carson Gaspar: "Re: [fw-wiz] DNS records for a firewall NAT pool"
    To: Frank Knobbe <fknobbe@knobbeits.com>
    Date: Tue, 29 Jul 2003 18:43:10 -0400
    
    

    On Tue, Jul 29, 2003 at 04:55:14PM -0500, Frank Knobbe wrote:
    > On Tue, 2003-07-29 at 12:17, Barney Wolff wrote:
    > > For example, 66.114.72.185 -> p72-185.acedsl.com -> 66.114.72.185 , done
    > > by my ISP.
    >
    > Adding to that, in most cases you get can get away by entering the IP
    > address as the host name in your in-addr.arpa zone. That way the IP
    > address 1.2.3.4 can be mapped to the _hostname_ (as _string_) 1.2.3.4,
    > which of course is typically resolved back to the IP address.
    >
    > So above example would read:
    >
    > 66.114.72.185 -> "66.114.72.185" -> 66.1114.72.185 :)

    I'd be very wary of dots in a hostname, and of hostnames beginning
    with a digit *. FreeBSD's gethostbyname seems to accept a dotted-quad
    as a name, but I'm not sure that's universal.

    * Names starting with a digit are valid in dns but not valid hostnames.
    Some systems care, some don't.

    -- 
    Barney Wolff         http://www.databus.com/bwresume.pdf
    I'm available by contract or FT, in the NYC metro area or via the 'Net.
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