IDS vs IPS vs Firewall – Know the Difference


IDS vs IPS vs Firewall

IDS vs IPS vs Firewall

A very common query asked by network and security administrators is the difference between Firewall, IPS and IDS.

All the 3 terms related to providing security to network and are considered essential components of a Network especially Data Center Network.

You can watch this video for better understanding:

(or continue reading)

The main difference being that firewall performs actions such as blocking and filtering of traffic while an IPS/IDS detects and alert a system administrator or prevent the attack as per configuration.

A firewall allows traffic based on a set of rules configured. It relies on the source, the destination addresses, and the ports. A firewall can deny any traffic that does not meet the specific criteria.

IDS is a passive device which watches packets of data traversing the network, comparing with signature patterns and setting off an alarm on detection on suspicious activity. On the contrary, IPS is an active device working in inline mode and prevent the attacks by blocking it.

IDS vs IPS vs Firewall: Comparison Table

Furthermore, below table enumerates the difference between IDS vs IPS vs Firewall in detail –

Download the IDS vs IPS vs Firewall detailed comparison in PDF format.

Continue Reading:

Cisco IPS/IDS Interview Questions


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