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PROTECTING THE ORGANIZATION 4, Estimation of a computer system, network or…

- - - - both software and hardware
      - common firewall types
        
        Application layer firewall
        
        Context aware layer firewall
        
        Proxy server
        
        Protects users
        
        Transport layer firewall
        
        Network layer firewall
        
        Reverse proxy server
        
        Protects web servers
        
        NAT firewall
        
        (Network address translation) hides private addresses
        
        Host-based firewall