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Date:	Thu, 2 Mar 2000 18:03:55 PST
From:	Peter Skye <pskye@peterskye.com >
Reply-To:	scoug-programming@scoug.com
To:	scoug-programming@scoug.com
Subject:	SCOUG-Programming: TCP/IP socket programming ?

Content Type: text/plain

Steven Levine wrote:
>
> Localhost is just a alias name for your hostname / IP address.
>
> Take a look at the TCP/IP Programming Reference.
>
> There's a group of ports allocated for user defined
> use. Your applications will have configuration files
> to tell them which ip address/ports to listen and talk on.

Okay, I understand the hookup - thanks.

-- If I set Netscape to "localhost" instead of my mail server
(mail.duckyisp.net or whatever), then Netscape will try to communicate
with the mail port (25) on the machine that it's on.

-- And if my monitoring module is watching that port, then it will get
all mail requests from Netscape and can take care of them (and can also
open port 25 on the non-local mail server machine and forward to it the
requests from Netscape, thus making my monitoring module "invisible").

-- If I have more than one monitoring module in series (like a string
of command line filters), then I either have to tell them what ports to
use or the monitoring modules need some supervisorial routine that will
dynamically tell them what ports to use.

Yes?

I went to IBM Redbooks but couldn't find the TCP/IP Programming
Reference you mentioned (searched on "tcp/ip programming"). Where is
it?

Thanks, Steven.

- Peter

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