yes you are right...I would like to match the domain names with the IP lookup, however I do not want to skip the second lookup if any IP is found in the 1st domain because I want to see if an IP is in both domains. When you said "Assuming "nsqry" has been modified to return the info," I became confused in trying to modify the sub. Will you help? 
#!/usr/bin/perl

use strict;
use warnings;
use Carp;
use Net::DNS;
use Data::Dumper;


my @domain = (
   { NAME => 'ns7.pyxis.com', IPLIST => [] } , ## Autovivification
   { NAME => 'wrnadc02.na.alarismed.com', IPLIST => [] }
) ;

my %IPinfo;    # HoH

for my $IP (qw ( 10.220.84.30 10.220.84.51 10.220.84.52
          10.220.84.54
          10.220.84.55 10.220.84.56 10.220.84.57
          10.220.84.58
          10.220.84.59 10.220.84.60 10.220.84.61
          10.220.84.62
          10.220.84.64 10.220.84.65 10.220.84.70
          10.220.84.71
          10.220.84.72 10.220.84.73 10.220.84.74  )) {

 $IPinfo{$IP} = {DOMAININDEX => undef,  TYPE => "CLIENT" } ;
                 }


    for my $ip (keys %IPinfo) {
        for my $domids (0..$#domain) {
            my $ptr = nsqry($domain[$domids]->{NAME}, $ip) ;  
            next unless $ptr ; # No change, if $ptr is empty
            $IPinfo{$ip}{DOMAININDEX} = $domids ; 
            $IPinfo{$ip}{PTR} = $ptr ;
            push @{$domain[$domids]->{IPLIST}}, $ip ; 
        }
    }

    sub nsqry {

    my ( $nssvr,  @clients ) = @_ ;

    my $res = Net::DNS::Resolver->new (
    nameservers => [$nssvr],
    recurse     => 1, ## do recursive lookups
    retry       => 1,
    debug       => 0,
    ) ;

        for my $client (@clients) {
            my $query = $res->search($client) ;
            if ($query) {
                for my $rr ($query->answer) {
                    next unless ($rr->type eq "PTR"); 
                    print $rr->ptrdname, "\n" ;
                }
            }
            else {
                 warn "query failed: ", $res->errorstring, "\n" ;
            }
       }
   }

print Dumper(\@domain);

$VAR1 = [
          {
            'NAME' => 'ns7.pyxis.com',
            'IPLIST' => []
          },
          {
            'NAME' => 'wrnadc02.na.alarismed.com',
            'IPLIST' => []
          }
        ];

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In reply to Re^2: loop ending b4 I want it to by mikejones
in thread loop ending b4 I want it to by mikejones

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