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Application-Proxy Firewalls

Works a Layer 7 - Application Layer

Initiate a new connection on behalf of user and..

Fitler the packets also on the contents of the payload, unless encrypted

          Firewall
      Application-Proxy
  Public |         | Private
         |         |
    FB   |         |  MI
 1.1.1.1 |         | x.x.x.x
         |         |
         |         |

Types of Firewalls

• PacketFilteringFireWall
• StatelessFirewall
• StatefullFirewall
• Circuit-Level-Firewall
• Application-Proxy
• Next-Generation Firewalls

Tools

The Uncomplicated Firewall (ufw) is a frontend for iptables and is particularly well-suited for host-based firewalls.

• Application Firewall @ Wikipedia

http:///wiki/?applicationproxy

01dec16

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