What is the rules of ports?

Posted by Jake on Server Fault See other posts from Server Fault or by Jake
Published on 2010-04-02T14:40:18Z Indexed on 2010/04/02 14:43 UTC
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security

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port

Hi,

I mean the port to connecting.. just like SSH port, nginx port, etc.

Im not clear about the port. So far I can see port running not more than 5 characters (port xxxxx).

So, when choosing port number, what is the rules and the character limit of port? Is 5 characters the maximum?

Thanks.

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