Network port

port are a virtual place on operating system to use for connecting start and end. it is a software. use to communicate on internet a particular service have a unique port define and run a port only unique type of services.

types of network ports

• well-known ports 0-1023
• Registered ports 1024-49151
• Dynamic ports 49152-65535

default ports

port no	service	protocol
20	ftp data	tcp
21	ftp protocol	tcp
22	ssh	tcp
23	telnet	tcp
25	smtp	tcp
53	dns	udp
80	http	tcp
110	pop3	tcp
143	imap	tcp
443	https	tcp

Network ports