SAGARFIVE

Networking Basics

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What is Network Port ?

Port is a number assigned to uniquely identify a connection endpoint and to direct data to a specific service. At the software level, within an operating system,

ex :

ProtocolPort Number
FTP21
SSH22
Telnet23
SMTP25
DNS53
DHCP66/67
HTTP80
POP110
IMAP143
SNMP161
HTTPS443
MYSQL3306
RDP3389