I've been using Net::DNS::Resolver, which you can put the dns server name in the constructor. Something like the following: 
use Net::DNS::Resolver;
my $nameserver = "10.1.10.42";
my $resolver = Net::DNS::Resolver->new(
               nameservers=>[$nameserver],
                   recurse =>1,
                   debug =>0,                                       );
my @addresses = ();
my $host ='yahoo.com';
my $query = $resolver->search($host);
if ($query){
    foreach my $rr ($query->answer) {
        next unless $rr->type eq "A";
        push @addresses,$rr->address if $rr->address =~/^[\d\.]+$/;
    }
} else {
    warn "query failed: ", $resolver->errorstring, "\n";
}

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In reply to Re: Nslookup using a different DNS server by johnnywang
in thread Nslookup using a different DNS server by Anonymous Monk

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