#!/usr/bin/perl -wT
# This is an excerpt, though it should work OK.
use strict;
use IO::Socket;
use vars qw($socket);

$socket = whoisconnect('whois.networksolutions.com',5);  

my $fileRead = "test.txt"; 

open(INF,$fileRead) or die("Could someone tell me where $fileRead is? $! \n");

while (<INF>){
   my $domain= $_;
   chomp($domain);

   if (!$socket->connected()){
   # Test connection
       print "Not Connected, attempting to reconnect. . .\n";
       $socket = whoisconnect('whois.networksolutions.com',5);
   }
   # If I uncomment the line below, this works beautifully.
   # $socket = whoisconnect('whois.networksolutions.com',5);
   $socket->send("$domain\n") or die ("Can't send data $!");
   my @answer= <$socket>;
   foreach(@answer){
      print $_;
   }
}

close(INF);

sub whoisconnect{
    my ($domain,$timeout)=@_;
    my $socket = IO::Socket::INET->new(PeerAddr => $domain,
                                PeerPort => 43,
                                Proto =>'tcp',
                                Type => SOCK_STREAM,
                                Timeout => $timeout,
                                Reuse=>1
                               )
    or die("Couldn't connect: $!\n");
    return $socket;
}