From: bobh@... (Robert)
Date: 2001-09-20T00:04:21+09:00
Subject: [ruby-talk:21394] Socket Scan against network computer

require 'socket'
(0..100).each { |port|
   begin
      puts "trying: #{port}"
      server = TCPSocket.open("000.00.0.0", port)
      puts "***SUCCESS: port #{port}"
   rescue
      puts "couldn't open port: #{port}"
   ensure
      server.close
   end
}

GIVES ME:

../socket.rb:10: undefined method 'close' for nil (NameError)
        from ./socket.rb:2:in 'each'
        from ./socket.rb:2
        from socket.rb:1:in 'require'
        from socket.rb:1

The IP, is of course, an actual IP. Any ideas? Yes I am a newbie.
Looking at moving from Python.

Bob