(This not exactly a Webware issue, but you may experience this in the
course of using Webware.)

On a LAN machine, I set my HTTP server to run on port 79. I could
browse it with http://foo:79/ using the lynx, konqueror and opera
browsers, but mozilla and galeon gave me this mysterious message:

    Access to the port number given has been disabled for security
    reason.

I posted this to netscape.public.mozilla.general and found out that
this behavior is in response to the "cross-protocol scripting"
vulnerability described at http://www.kb.cert.org/vuls/id/476267.

I also learned that you can override the banned ports by putting a
preference in the ``all.js`` script of your mozilla site installation::

    pref("network.security.ports.banned.override", "79");

My all.js was found at /usr/lib/mozilla/defaults/pref/all.js. I
located it with ``rpm -q mozilla -l | grep all.js``.

*Credit:* Thanks to the folks at netscape.public.mozilla.general for
their help. For details, see the thread starting on 2001-12-26,
"Access to the port number given has been disabled for security
reasons".

-- ChuckEsterbrook_ - 27 Dec 2001

Which ports are banned? All below 1024 except 80?