What is intrusion detection? What are some of the downsides to encryption within firewalls?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Hi, I need to answer this question. The name of the book is "Network Security, Firewalls, and VPNs 2nd Edition". Thank you.

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What is intrusion detection? What are some of the downsides to encryption within firewalls?

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Step 1 What is intrusion detection

Intrusion Detection is a process where monitoring is done for a network or a system for any policy violation or any other malicious activity. once detected, an intrusion id typically reported to the admin or to the person responsible for intrusion detection. sometime intrusion details are also stored at a centrally located server to access them for a later time or to keep them for historical/research/proof purpose.

 

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