封包過濾(Packet Filtering)
Rule & Policy
service: Telnet SSH Mail
port:
Host:
Dynamic Packet
packet level
入侵偵測(Intrusion Detection)
警示系統(Alert System)
send email
log files
緩衝區溢位 Buffer Overflow
SQL Injection...
門禁管制(Access Policy)
使用者認證(User-Level Authentication)
應用程式過濾(Application Filtering)
網站過濾器(Web Filter)
虛擬私人網路VPN(Virtual Private Networking)
網路位置轉換(NAT: Network Address Translator)
阻斷服務攻擊DoS(Denial of Service)
TCP/UDP PortScan
ICMP Smurf
IP Land
IP Spoof
IP TearDrop
PingOfDeath
TCP Scan
TCP SynWithData
UDP Bomb
UDP EchoChargen
