các giao thức mạng

FPT - File Transfer Protocol: Port 21
SSH – Secure Shell: Port 22
Telnet – Port 23
SMTP – Simple Mail Transfer Protocol: Port 25
DNS – Domain Naming System Protocol: Port 53
HTTP – Hypertext Transfer Protocol: Port 80
POP3 – Post Office Protocol: Port 110
IMAP – Internet Message Access Protocol: Port 143
HTTPS – HTTP secure: Port 443
RDP – Remote Desktop Protocol 3389
TCP - Tranmission Control Protocol
UDP – User Datagram Protocol
ARP – Address Resolution Protocol
RARP – Reverse ARP