firewalls nicklas nordenmark fabian alenius peter renström nicklas nordenmark fabian alenius peter...
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FirewallsFirewalls
Nicklas NordenmarkFabian AleniusPeter Renström
Nicklas NordenmarkFabian AleniusPeter Renström
Basic
•Software or dedicated device
•Using a set of rules
•Traffic flow between networks
•Local network -> Internet
History
•The term “firewall”
•Late 1980s
•Clifford Stoll vs Markus Hess
Traditional Packet Filter
•First generation firewall
•Network Layer Attack
•IP Spoofing
•Smurf Attack
•Stacheldraht DDoS agent
Stateful Firewall
•Second generation firewall
•Keeps track of current connections
•Transport Layer Attack Definitions
•Connection resource exhaustion
•Header abuses
•Port Scan / Mapping
Application Layer Firewall
•Third generation firewall
•Many attacks on the application layer
•Inspect data
•SQL Injection
•Phishing
•Problems with encryption
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