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Port assignment

Posted on 1997-01-27
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Last Modified: 2013-12-16
I am developing a client Java applet that will be embedded into a Web page. The applet will communicate with an existing application.

Is it possible to assign a port number to an application. If possible how can I do it? (ie. Echo server has port no 7, telnet 25, smtp 23, http 80 vs vs., ports beyond 1024 are unused, how can I assign port 1025 to an executable program or do I need to define my own protocols to do that)?

Thanks

Dogu Arifler
 
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Question by:dogu012697
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pc012197 earned 200 total points
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You can assign a port number to a service (under unix, simply add a line to /etc/services). However, this change is only local, it needs to be done on every client machine executing your application.

If you want an official assignment, you can contact the IANA (Internet Assigned Numbers Authority. Check RFC 1700 for details.

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