网络
Common TCP Ports
- Telnet (23) – Login
- SSH (22) – Secure Login
- HTTP (80)
- HTTPS (443) – Secure
- SMTP (25) – Mail
- IMAP (143/220/993) – Mail Retrieval
- POP (109/110) – Mail Retrieval
- DNS (53) – Domain Name
- FTP (21) – File Transfer
互联网协议
- Protocal
- Internet Protocal Suite
- Physical Layer
- Link Layer
- Ethernet
- MAC
- broadcasting
- route
- Network Layer
- IP
- subnet mask(子网掩码)
- gateway(网关)
- ARP
- Transprot Layer
- port(端口)
- socket(套接字)
- UDP
- TCP
- Application Layer