Looking for DNS/Operational experience

[Mike Leber]

Steve Bertrand wrote:
> I'm about to write up some Perl scripts to do some crafty work with
> router information, but before I dedicate my time to it (I'm about all
> we have at our small SP), I thought I'd ask if there is anything of the
> like:
> 
> - any UNIX command-line tool to convert a compressed v6 addr into a
> reverse DNS entry

Since you mentioned Perl, here is a way to do it with Perl:

$ perl -e 'use Net::IP;$ip=new Net::IP("2a02:c0:100::2/128");print 
($ip->reverse_ip()."\n");'

2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.c.0.0.2.0.a.2.ip6.arpa.

You'll probably find Net::IP very useful.  You can use it to write code 
that is nearly address family agnostic.

Mike.

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| Mike Leber        Wholesale IPv4 and IPv6 Transit      510 580 4100 |
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| mleber at he.net     Internet Backbone & Colocation      http://he.net |
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