Re: Understanding NAT, Firewalls, TCP/IP

On 10 Jan 2006 22:22:17 -0800, "Mark H" <mehaase@xxxxxxxxx> wrote,
quoted or indirectly quoted someone who said :

>Roedy I don't understand what the question is. Is it simply what port
>to use? Don't use port 80 unless you're connecting to http servers.
>Even if you write your own app on port 80, that doesn't mean that
>Windows firewall won't block your application. A hardware firewall
>obviously won't know the difference, but most hardware firewalls built
>into NAT routers don't block outgoing requests anyway.

My problem is, I can do this app very easily with permanent sockets
exchanging serialised object messages. I then don't need to set up
Tomcat or the like, just my own very simple server that won't require
any expertise to install.

But if I got that route, I thought I might get in trouble with
firewalls. My clients won't have a clue what to do. So what I have
to do is use Tomcat and Servlets and traditional HTTP messages, though
JAWS apps send them instead of browsers.

Which brings up another question.. Does http have a way of SENDING
unarmoured binary to the server, or only the other way?

--
Canadian Mind Products, Roedy Green.
http://mindprod.com Java custom programming, consulting and coaching.
.

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