importance of firewalls in an organization

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John A


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October 25, 2016







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A firewall also includes or works with a proxy server that makes network requests on behalf of workstation users. A firewall is often installed in a specially designated computer separate from the rest of the network so that no incoming request can get directly at private network resources. "Firewalls use one or more of three methods to control traffic flowing in and out of the network: ? Packet filtering - Packets (small chunks of data) are analyzed against a set of filters...
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Packets that make it through the filters are sent to the requesting system and all others are discarded. ? Proxy service - Information from the Internet is retrieved by the firewall and then sent to the requesting system and vice versa. ? Stateful inspection - A newer method that doesn't examine the contents of each packet but instead compares certain key parts of the packet to a database of trusted information...
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