IDS

Intrusion Detection Systems

IDS are used to detect attacks aimed at a network or host. See Also: IPS, NIDS, and HIDS.

Tools:

Cisco IDS NIDS

 Cisco IDS - A network layer intrusion detection system based off of tcpdump with signature support.

Snort NIDS

 Snort - A network layer intrusion detection system based off of libpcap with signature support and preprocessor support.

OSSEC HIDS

 OSSEC - A host-based intrusion detection system that utilizies log analysis combined with integrity checksums and rootkit detection engines.

Samhain HIDS

 Samhain - A file integrity checking application similar to OSSEC

Nepenthes HIDS

 Nepenthes - A malware connection utility similar to HoneyD

HoneyD HIDS

 HoneyD - A tool for collecting malware and tricking attackers into thinking they've performed a successful attack.

IDS is part of a series on countermeasures.