2 Port Scanning Attacker Port Scan Port 20

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常見的威脅(2) 埠掃描 § 埠掃描 (Port Scanning) Attacker Port Scan Port 20? … 21? …

常見的威脅(2) 埠掃描 § 埠掃描 (Port Scanning) Attacker Port Scan Port 20? … 21? … 22? … 23? … 24? … 25? … Service closed FTP closed SMTP Web Server

常見的威脅(3) 阻斷服務攻擊 § 阻斷服務攻擊(Denial of Service Attacks) 磁碟空間(Disk Space) 網路頻寬(Bandwidth) 緩衝區(Buffers) 中央處理器使用量(CPU Cycles Usage)

常見的威脅(3) 阻斷服務攻擊 § 阻斷服務攻擊(Denial of Service Attacks) 磁碟空間(Disk Space) 網路頻寬(Bandwidth) 緩衝區(Buffers) 中央處理器使用量(CPU Cycles Usage)

參考網頁 § 封包內容 http: //www. 20 cn. net/ns/cn/zs/data/200208060 30406. htm

參考網頁 § 封包內容 http: //www. 20 cn. net/ns/cn/zs/data/200208060 30406. htm

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