Basic Port Info

• Port Ranges

  • Well-known ports: 0 to 1023

  • Registered ports: 1024 to 49151

  • Private ports: 49152 to 65535

• Common Ports:

  • FTP: 20, 21

  • SSH: 22

  • Telnet: 23

  • SMTP: 25

  • DNS: 53

  • DHCP: 67, 68

  • HTTP: 80

  • HTTPS: 443

  • Syslog (UDP): 514

  • RDP: 3389