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Types of firewall
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Terms in this set (17)
What is the first line of defense?
4) A Router
Layer 5, Session layer: Transport layer, TCP, UDP SPX
They monitor data grams and verify they are legitimate.
monitor the TCP hand-shaking process used to establish TCP sessions between hosts
use against man in the middle attacks
ports protocols, HTTP, TCP, IP, Transport, network and MAC filtering (windows firewall is good to use)
proxy requests to or from your network and do not allow traffic for which you have not defined a proxy
It enables you to configure Network Address Translation (NAT)
This enables applications such as instant messaging, file transfer, and others to function through your firewall without you needing to open up multiple specific ports.
Operates at the network level, level 3.
Are often implemented as part of a router.
Allows or blocks packets
It is a proxy firewall
combine aspects of the other three firewall types
examines data at all seven layers of the OSI model.
They not only inspect the packet header, but also inspect the packet payload.
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