Nada del otro mundo , un simple codigo en ruby para conocer la IP de cualquier host.

#!usr/bin/ruby
#Resolve IP 0.1
#Coded By Doddy H
 
require "resolv"
 
def head()
  print "-- == Resolve IP 0.1 == --\n"
end
 
def copyright()
  print "\n(C) Doddy Hackman 2012\n"
  exit(1)
end
 
def sintax()
  print "\n\n[+] ruby resolve.rb <host>\n\n"
end
 
head()
if !ARGV[0]
  sintax()
else
  ip =Resolv.getaddress(ARGV[0]) 
  print "\n\n[+] IP : ",ip,"\n\n"    
end
copyright()
 
#The End ?