Firewall Operation Packet Filtering Firewall l Stateful Inspection

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Firewall Operation Packet Filtering Firewall l Stateful Inspection Firewall l Application Proxy Firewall l

Firewall Operation Packet Filtering Firewall l Stateful Inspection Firewall l Application Proxy Firewall l

Packet Filtering Firewall

Packet Filtering Firewall

Stateful Inspection Firewall

Stateful Inspection Firewall

Application Proxy Firewall

Application Proxy Firewall

Hybrid Firewall l Packet Filtering + Application Proxy Third Generation Firewall Technology ตวอยาง l

Hybrid Firewall l Packet Filtering + Application Proxy Third Generation Firewall Technology ตวอยาง l Raptor Firewall by Symantec l Firewall 1 by Checkpoint l Sidewinder Firewall by Secure Computing l Lucent Brick by Lucent

FIREWALL ARCHITECTURE

FIREWALL ARCHITECTURE

Firewall Architectures l l l Screening Router Simple Firewall Multi-Legged firewall Firewall Sandwich Layered

Firewall Architectures l l l Screening Router Simple Firewall Multi-Legged firewall Firewall Sandwich Layered Security Architecture

Screening Router

Screening Router

Simple Firewall

Simple Firewall

Multi. Legged Firewall

Multi. Legged Firewall

Firewall Sandwich

Firewall Sandwich

Layered Firewall

Layered Firewall

High Availability Network

High Availability Network

Network Security Policy Rule Source Destination 6 Internal Network Any 7 Any Service (Port)

Network Security Policy Rule Source Destination 6 Internal Network Any 7 Any Service (Port) Action Description HTTP (80) , HTTPS Allow อนญาตใหผใ ชภายในเครอขา (443) , FTP (20 -21) ยใชบรการดงก , Telnet (23), SSH (22) , ลาวจากอนเทอร SMTP (25) , POP 3 (110) , เนตและ DMZ IMAP 4 (143) Any Deny ถาไมตรงกบกฎ ทกำหนดขาง บนใหละทงแพ กเกตนน

โจทย : การทำงานของ Firewall แตละชนด การโจมต Syn Flood Port Scan UDP Flood Land Attack

โจทย : การทำงานของ Firewall แตละชนด การโจมต Syn Flood Port Scan UDP Flood Land Attack Fragmentation Packet Session Hijack Web Hacking : Parameter Tempering Sniffer การคาดเดารหสผานเพอเขาระบบ … Packet Filtering Stateful Inspection Application Proxy

โจทย : Firewall Policy l Net. Sec Questions ขอ 15

โจทย : Firewall Policy l Net. Sec Questions ขอ 15

Firewall product l l l Juniper Cisco Catalyst Firewall Fortigate

Firewall product l l l Juniper Cisco Catalyst Firewall Fortigate

Firewall Features l l l Firewall Throughput : Mbps/Gbps VPN Throughput : Mbps Concurrent

Firewall Features l l l Firewall Throughput : Mbps/Gbps VPN Throughput : Mbps Concurrent Sessions : number IPsec VPN Peers : number Interfaces : number of Gigabit Ethernet ports, SFP fiber ports, and Fast Ethernet port Virtual Interfaces (VLANs) : number

Firewall Features l l l Scalability : VPN clustering and load balancing High Availability

Firewall Features l l l Scalability : VPN clustering and load balancing High Availability : Active/Active, Active/Standby Redundant Power : Supported, second power supply optional

Host ไฟรวอลลสำหรบ l l ไฟลวอลลสำหรบ ตวอยาง l l l l Host หรอ Personal Firewall

Host ไฟรวอลลสำหรบ l l ไฟลวอลลสำหรบ ตวอยาง l l l l Host หรอ Personal Firewall Windows 7 Firewall Zone Alarm Tiny Personal Firewall Norton Personal Firewall Sygate Personal Firewall Conseal PC Firewall VPN-1 Secure Client