From: Udo <kragil@...>
Date: 2007-03-21T01:00:10+09:00
Subject: Porttrigger ( pw protected )

Hello!

I want to control the starting of certain services on my
Linux VPS with a home made porttrigger. If the right password
is received the according programm for that port is started.
( I have my reasons to do it this way and not with firewall
setting or encryted passwords. If you want to know ask ;-) )

This is what i have come up with so far:

#!/usr/bin/env ruby
require "socket"
server = TCPServer.new('0.0.0.0', 8089)
while (session = server.accept)
   if (ret=session.gets.chomp) =~ /password/
      puts `./sc_serv0`
   end
   session.close
end



It kinda works, but the problem is that the ruby isnt freeing
the port.
So programms that cant share ports give me:

error opening source socket! FATAL ERROR! Some other process is using
this port!

How do i close the TCPServer after the right password is received?
( In the final version i want to stop the started programm after
a certain amount of of time and start the trigger again ( and it
prolly needs to be threaded. ))
But for now i just want this to work.

server.shutdown wont work after the right pw is received.

Any ideas?

Thanks!