On 5 Aug 00, at 12:31, Ahmed Matar wrote:
> I am in urgent need of the port numbers that are usually open on most
> firewalls so that applications can transmit information to users on those
> ports who are behind firewalls. As far as I know (correct me if I am wrong),
> but most firewalls (e.g. Microsoft Proxy 2.0) have special ports open for
> some well-known applications such as the RealPlayer and also have a number
> of ports open for all other applications to use. I've been trying to find
> these ports numbers on the net, but have not suceeded in doing so. Please if
> anybody has this information please send it to me. The reason I'm asking
> this question is because I am creating a application that plays streamed
> audio transmitted to it from another application running on a remote
> webserver. I want users behind firewalls to be able to use my application so
> I need to know on what ports I can transmit my audio to the user (via UDP)
> so that if he/she is behind a firewall, the audio will be received.
You're going about it all wrong. At least in my opinion. You're very
likely to make some security people a bit mad at you when you try
to sneak your application through disguised as something else.
I'm always suspicious of traffic that appears to be one thing but is
really something else.
But if you must do it your way, use port 7 and tell them it's a truly
audible ping. (Just kidding)
Eric Johnson
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