From: Joel VanderWerf <joelvanderwerf@...>
Date: 2010-06-03T11:35:07+09:00
Subject: Re: TCPSocket error

Brian Candler wrote:
> Ted Pon wrote:
>> irb(main):002:0> require 'socket'
>> => true
>> irb(main):005:0> TCPSocket.open('0.0.0.0', 8888)
>> Errno::EADDRNOTAVAIL: The requested address is not valid in its context.
> 
> Like it says, 0.0.0.0 is not a valid destination IP address. Try 
> instead:
> 
> TCPSocket.open('127.0.0.1', 8888)

Dunno why, but ruby on linux seems to let me connect to 0.0.0.0. A 
socket bound to 127.0.0.1 does seem to accept this connection.