tcp or local host 4 digit working numbers for Ubuntu os
Answers
Explanation:
Network port numbers are 2-byte unsigned integers, and as such can be any number from the range 0 to 65535. Zero is reserved but apart from that, you could theoretically use any number, except that certain ports have a very specific meaning attached to them. You can see a list of these common ports on Wikipedia. While you could absolutely use those for your application as well, chances are that they are already in use.
For custom applications you usually use one outside of the “well known” range, so a four or five digit number. Often, you should even go above 49152 into the “ephemeral” space. That way, chances for conflicts are less common, and you will not attempt to use a port that is commonly used for a specific type of application. It’s also common to randomize the port (if your application allows that), to reduce the chance for conflicts.
Answer:
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