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 ?
Signature-based intrusion detection systems use an architecture of limited scalability that must fully inspect every packet against the whole database of attack signatures.
Clearly, intrusion detection has its place in the layered security architecture of many organizations, but the costs in time, manpower, and incident recovery costs associated with reactive controls are prohibitive.
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.
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.
The Balancer is an aggregation, filtering and load balancing appliance that reduces the capital, maintenance, and operations expenditures for network monitoring solutions such as network Intrusion Detection Systems (IDS), network analyzers, forensics systems and content inspection engines, while increasing monitoring coverage.
The Intrusion SecureNet ID&PS provides critical deep-packet analysis and application awareness and can be deployed passively for intrusion detection or actively for intrusion prevention.
The iPolicy 3000 series deliver real-time intrusion detection and prevention, firewall, VPN, and URL filtering, on an integrated 1U appliance.
If you are interested in an overview of the latest analysis of the World Intrusion Detection and Prevention Systems Markets, please e-mail Dustin McVey at dmcvey@frost.
As the de facto standard for intrusion management, Snort is the most widely deployed Intrusion Detection technology in the world with more than 1,000,000 downloads to date and over 100,000 currently active deployments, including most of the Fortune 100.
Furthering the commitment of providing enterprises and governments with the first Common Criteria certified, best of breed network intrusion detection system, Intrusion Inc.
Based on Intoto's patent-pending application-aware Inline IPS(TM) technology, IntruPro provides greater intrusion detection and prevention accuracy for reduced false positives and higher performance than traditional IDS and IPS approaches.

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