TCP & UDP Ports – Drag & Drop

Well-Known Ports – TCP & UDP

TCP Ports

21

22

23

25

80

443

110

143

Protocol

Port

Service

Description

TCP

FTP

File Transfer

TCP

SSH

Secure Remote Login

TCP

Telnet

Remote Login

TCP

SMTP

Email Sending

TCP

HTTP

Web Service

TCP

HTTPS

Secure Web

TCP

POP3

Email Receiving

TCP

IMAP

Email Access

UDP Ports

53

67

68

69

123

161

Protocol

Port

Service

Description

UDP

DNS

Name Resolution

UDP

DHCP (Server)

IP Assignment

UDP

DHCP (Client)

IP Request

UDP

TFTP

Trivial File Transfer

UDP

NTP

Time Synchronization

UDP

SNMP

Network Management