From: "Brian Schröder" <ruby@...>
Date: 2005-01-21T18:49:51+09:00
Subject: Re: server connection

On Fri, 21 Jan 2005 01:33:09 +0900
Barry Sperling <barry@angleinc.com> wrote:

> Hi,
> 	I'm trying to learn some basic networking and I've tried to run the 
> code from the Pragmatic Programmer in the Class TCPServer which connects 
> to a server and then returns the date and time ( as in Steven's 
> Networking book ).  I am using a W2K machine and have started an Apache 
> service, which comes attached to Oracle.  When I use 127.0.0.1 or call a 
> server that I am linked to on a LAN, I get the same error
> "Only one usage of each socket address is normally permitted"
> 
> I get this error when I run it as an rbw through Scite, or from the 
> command line.  What do I need to do to make a server connection?
> 	Thanks,
> 		Barry
> 
> 
> 
Maybe you are opening up a TCPServer that tries to listen on port 80 or some other port that is already in usage.

There is some command in windows to list the used ports, I just don't rember which.

For a simple TCP example program see the explanation in my ruby-course slides and the chat sources:

http://ruby.brian-schroeder.de/course/


Regards,

Brian