From: Kr Alfabeta <kristis@...>
Date: 2008-04-17T13:34:01+09:00
Subject: Re: checking connection to server:port


> i think you just want to check a udp connection to a udp server. no 
> problem.
> 
> require 'socket'
> s = UDPSocket.new
> s.connect("10.10.10.10", 10101)
> puts "you are connected"  #<-- if you get here, you are connected
> 

when I trying to connect with PHP (fsockopen) it fails: Warning: 
fsockopen() [function.fsockopen]: unable to connect to xxx.xx.xx.xx:2555 
(No route to host)

RUBY:

irb(main):001:0> require 'socket'
=> true
irb(main):002:0> s = UDPSocket.new
=> #<UDPSocket:0xb7d3c590>
irb(main):003:0> s.connect('xxx.xx.xx.xx', 2555)
=> 0
irb(main):004:0> puts 'ok'
ok
=> nil

I think this example really shows the problem about which I am talking 
:)
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