Snort - what does it do?

[robina80]

hi all,

i was wondering what this package does/do as i know its a network intrusion detection system but what does that mean or do

sorry if im asking a really dumb question

rob

[BBcan177]

http://en.wikipedia.org/wiki/Snort_(software)

https://doc.pfsense.org/index.php/Setup_Snort_Package

https://forum.pfsense.org/index.php?topic=61018.0