About this document

TCP and UDP Port Number Guide by nuh is a document available to read on EtoBox.

This document lists TCP and UDP port numbers and their associated protocols and applications. It includes well-known ports from 0-1023 which are reserved for system processes, and registered ports from 1024-49151 which are assigned to specific services by IANA. Many ports are used unofficially for other applications in practice. The table provides information on common ports including DNS (53), SSH (22), FTP (20/21), Telnet (23) and more.

Author

nuh

Language

EN