An Intrusion （ ）System (IDS) is a System that monitors network traffic for Suspiciousactivity and alert.when such ativity is discovered , while （ ）detection and reporing are the prinory fuctos of an IDS, Some IDS. Sone IDs, are also caph k of takig aetias when （ ） activity or anomalous traffic is detected , including （ ） trafficsent from Suspicious.Inteeret Protocol (Ip) adilses, Any malicius yenture er violation is nermally reported e ther to an administratoror Collectad: centhally using a（ ） infmatiom andevent managemene ( SIEm) s ystem , A SIEm, System integrates out puts from multiple Sources ond uses alarm filtering tecnjques to differentjate malicToug ativitg f+om falsa alarms.