IDS

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IDS

(Intrusion Detection System) Software that detects an attack on a network or computer system. A Network IDS (NIDS) is designed to support multiple hosts, whereas a Host IDS (HIDS) is set up to detect illegal actions within the host. Most IDS programs typically use signatures of known cracker attempts to signal an alert. Others look for deviations of the normal routine as indications of an attack. Intrusion detection is very tricky. Too much analysis can add excessive overhead and also trigger false alarms. Insufficient analysis can overlook a valid attack.

Catch It at the Source
The opposite of intrusion detection is "extrusion detection." Such software examines the outgoing data in the computer to determine if malware is originating in this computer. See protocol anomaly, traffic anomaly, IPS and attack.
References in periodicals archive ?
Perimeter Intrusion Detection Systems Market: Company Profiling by Free-standing Sensors (World), 2009
Signature-based intrusion detection systems use an architecture of limited scalability that must fully inspect every packet against the whole database of attack signatures.
The move from the traditional NFA-PCRE-based approach to DFA is to shift the focus to use both hardware and software implementations for intrusion detection and thereby, overcome the limitations of each.
CyberSafe provides each major type of intrusion detection -- network node intrusion detection, network intrusion detection, and host-based intrusion detection -- in its upcoming Centrax 2.
Teja will be co-hosting a webcast seminar, "Deploying Intrusion Detection and other Advanced Network Security Applications at 10Gbps Speeds" along with RadiSys Corporation on Wednesday, August 31 at 10:00 AM PST / 1:00 PM EST / 18:00 GMT.
Network Intrusion Detection and Prevention Systems can only monitor the traffic they can see," said Marc Shinbrood, Chief Executive Officer of Breach Security.
0 and Proventia intrusion detection appliance, the market-leading intrusion detection systems, according to research firm IDC.
Top Layer's Balancer enables our eTrust Intrusion Detection and eTrust Network Forensics customers to monitor and capture Gigabit Ethernet traffic from backbone or aggregate links - with no software integration required," said Yiannis Vassiliades, product manager for eTrust security management at CA.
iPolicy Networks' Intrusion Prevention Firewall incorporates multiple firewall defense mechanisms including stateful firewall, intrusion detection and prevention, DoS and DDoS mitigation, URL filtering, VPN, and antivirus/antispam intrinsically built into the firewall, thereby eliminating security holes.
com), World Intrusion Detection and Prevention Systems Markets, reveals that the market generated revenue totaling $371.
Furthering the commitment of providing enterprises and governments with the first Common Criteria certified, best of breed network intrusion detection system, Intrusion Inc.

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