#!/usr/bin/perl 
use warnings;
use strict;
use IO::Socket::INET;

my $sock = new IO::Socket::INET (
    LocalHost => '127.0.0.1',
    LocalPort => '7070',
    Proto => 'tcp',
    Listen => 1,
    Reuse => 1,
    );
die "Could not create socket: $!\n" unless $sock;

my $new_sock = $sock->accept();

while(<$new_sock>) {
    print $_;
}
close($sock);

##</code><code>##

#!/usr/bin/perl 
use warnings;
use strict;
use IO::Socket::INET;

my $sock = new IO::Socket::INET (
    PeerAddr => '127.0.0.1',
    PeerPort => '7070',
    Proto => 'tcp',
    );
die "Could not create socket: $!\n" unless $sock;
print $sock "Hello there!\n";
close($sock);