Ports

range: 0-65535

Common ports: 0 - 1024

Common default ports

• 21 - FTP (File Transform Protocol)
  • Download files with get
• 22 - SSH (Secure SHell)
• 80 - HTTP
• 139 - Windows NETBIOS
• 443 - HTTPS
• 445 - SMB (Server Message Block)
• 3389 - Remote Desktop Protocol

List of all 1024 common ports.

Terms

Port-forwarding

Router forwards requests to port to specific ip:port. Allows devices from network to be accessed from internet.