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Internet Protocol Suite#

Application Layer#

  • DNS
  • FTP
  • HTTP
  • HTTPS
  • IMAP
  • MQTT
  • POP
  • TLS/SSL
  • Telnet (Teletype Network)
  • SSH (Secure Shell)
    • SSH was designed as a replacement for Telnet
    • Once a SSH connection is established, data that is transmitted is encrypted.
  • SFTP (Secure File Transfer Protocol)

Transport Layer#

  • TCP
  • UDP

Internet Layer#

  • IPv4
  • IPv6
  • ICMP
  • WiFi
  • tunneling
    • SSTP (Secure Socket Tunneling Protocol)
    • PPTP (Point-to-Point Tunneling Protocol)
    • L2TP

References#