What is an Ephemeral Port?

This page answers questions like these:

What are Ephemeral Ports?

Terminology:

Can Multiple Programs Listen on the Same Port Number at the Same Time?

No. Only one program/process/thread can listen on a port at any point in time. Any attempt to listen on a port that is already being listened to will fail with an error.



What is the Ephemeral Port Range of My Machine?

Example:




Related Links:
What is TCP Keep Alive?
How to Use TCP Keep Alive?

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Tags: ephemeral port, ephemeral ports, temporary port, ephemeral port range, ephemeral ports range, ephemeral port number, linux, unix, solaris, bsd, aix

Src: tcpip-ephemeral-ports.txt
Dst: Linux-Unix/ephemeral-ports.htm
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