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From Ben Souther <>
Subject Re: TC 5 production use
Date Sat, 07 Feb 2004 02:57:26 GMT
We run Tomcat on 8080 using Cisco Routers for port redirection.
Nobody has to type in a port number.

On Friday 06 February 2004 07:11 pm, you wrote:
> > You can have any port be the default http port. It doesn't have to be 80.
> >
> > If you change /etc/services and just tell tomcat or apache to listen on
> > something else, it still works fine, and people don't have to remember
> > the port.
> >
> > Right?
> > Daniel
> All true since no port number has to mean anything.  But I've yet to see
> any actively used production web site that didn't use 80/443 because those
> are the ONLY ONES that can be reached without specifying a port number in
> the URL.   Considering the fact that absolutely nobody in the
> non-development world ever types in a URL with a port number, you can rest
> assured that no production web site relies on non-standardized port
> numbers.
> Then when  you consider firewalls, the ability for many sites to reach
> non-standard ports gets worse because many well-secured networks block
> outgoing connections to arbitrary IP+ports.  Allowing outgoing connections
> to be made to port 80 is common, but others are typically blocked (even
> spyware and virus-introduced backdoors often use port 80 just for that
> reason, even though the other end is not necessarily a web site).
> So you can use any port number you want, even ones assigned to other
> systems like DNS or SMTP, but the expected behavior won't occur.
> David
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