What is port 53 used for

Port Transport Protocol; 100 : 101: TCP: HOSTNAME.: 102: TCP: TP0 over TCP.: 103: TCP, UDP: Genesis Point-to-Point Trans Net. 104 : ACR-NEMA Digital Imag. & Comm. 300

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Support for using port 53 for Wireguard · Issue #1593

One of the many fundamental things to know as a network engineer is the function and port number used by a number of common services as well as many that are typically implemented during the course of a network engineer’s career. This article takes a look at these protocols, provides a basic description of their function and lists the port numbers that they are commonly associated with. List of Well-Known TCP Port Numbers - Webopedia Reference

Jun 30, 2016

One of the many fundamental things to know as a network engineer is the function and port number used by a number of common services as well as many that are typically implemented during the course of a network engineer’s career. This article takes a look at these protocols, provides a basic description of their function and lists the port numbers that they are commonly associated with.