[dns-operations] is there a diagnostic tool to obtain delegated ns?

[Jonathan Stewart]

On Thu, Sep 11, 2014 at 9:13 PM, Mark Andrews <marka at isc.org> wrote:

>
> The following will work for any zone w/o a embedded period in a label.
>
> zone="$1" parent="$1" ns=
> while test -z "$ns" -a -n "$parent"
> do
>         parent=`expr "X$zone" : '^[^.]*.\(.*\)'`
>         ns=`dig +short ns -q "$parent"`
> done
> (
>         for s in $ns
>         do
>                 dig +noall -q "$zone" soa "@$s" +authority
>         done
> ) | awk '{print $5}' | sort -ui
>
Mark,

Thanks for helping out a guy like me learn how to be more useful with
bash.  I am using this plus my own changes to do testing of a hosting
environment here today.

Thanks for sharing this code.

Cheers,
Jonathan


>
> > --
> > Mark E. Jeftovic <markjr at easydns.com>
> > Founder & CEO, easyDNS Technologies Inc.
> > +1-(416)-535-8672 ext 225
> > Read my blog: http://markable.com
> >
> > _______________________________________________
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> --
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org
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>



-- 
     Jonathan
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