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How firewalls differ from IDS ( Intrusion Detection System ) ? What are the differences between them ?

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    Nov 17, 2016 at 5:31

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Taken from Wikipedia on firewall:

In computing, a firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules

Taken from Wikipedia on IDS:

An intrusion detection system (IDS) is a device or software application that monitors a network or systems for malicious activity or policy violations.

About the difference between both of them:

The main difference is that firewall preforms actual actions such as blocking and filtering while and IDS just detects and alert a system administrator. Here is a small article talking about the differences for further reading.

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