1. Access control: firewalls Attacks and counter measures Security in many layers 2. Firewalls isolates organization’s internal net from larger Internet, allowing some…
Slide 1 Firewalling Techniques Prabhaker Mateti Slide 2 ACK Not linux specific Not linux specific Some figures are from 3com Some figures are from 3com Slide 3 Slide 4 Components…
Slide 1 24-1 Last time □ Message Integrity □ Authentication □ Key distribution and certification Slide 2 24-2 This time □ Firewalls □ Attacks and countermeasures…
Firewalls Firewalls Two firewall types: packet filter application gateways To prevent denial of service attacks: SYN flooding: attacker establishes many bogus TCP connections.…
Firewalling Techniques Prabhaker Mateti ACK Not linux specific Some figures are from 3com Components of the Firewall System Bastion Host Packet-filtering router Application-level…