Ip Addresses, Ports and Security System

Intrusion prevention system overview

Kerio Control integrates Snort, an intrusion detection and prevention system protecting the firewall and the local network from known network intrusions.

A network intrusion is network traffic that impacts the functionality or security of the victim-host. A typical attribute of intrusions is their apparent legitimacy and it is difficult to uncover such traffic and filter it simply by traffic rules. Let us use Denial of Service intrusion as an example — too many connections are established on a port to use up the system resources of the server application so that no other users can connect. However, the firewall considers this act only as access to an allowed port.

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