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    You are at:Home»Internet»Glossary»IDS
    Glossary of Internet and technology terms

    IDS

    1
    By Tony Bradley on March 8, 2014 Glossary

    Definition: An IDS (Intrusion Detection System) is a device or application used to inspect all network traffic and alert the user or administrator when there has been unauthorized attempts or access. The two primary methods of monitoring are signature-based and anomaly-based. Depending on the device or application used, the IDS can either simply alert the user or administrator or it could be set up to block specific traffic or automatically respond in some way.

    Signature-based detection relies on comparison of traffic to a database containing signatures of known attack methods. Anomaly-based detection compares current network traffic to a known-good baseline to look for anything out of the ordinary. The IDS can be placed strategically on the network as a NIDS (network-based intrusion detection) which will inspect all network traffic or it can be installed on each individual system as a HIDS (host-based intrusion detection) which inspects traffic to and from that specific device only.

    Also Known As: Intrusion Detection System, HIDS (Host Intrusion Detection System), NIDS (Network Intrusion Detection System)

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    Tony Bradley
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    I have a passion for technology and gadgets--with a focus on Microsoft and security--and a desire to help others understand how technology can affect or improve their lives. I also love spending time with my wife, 7 kids, 2 dogs, 5 cats, 1 rabbit, 2 ferrets, a pot-bellied pig, and sulcata tortoise, and I like to think I enjoy reading and golf even though I never find time for either. You can contact me directly at tony@xpective.net. For more from me, you can follow me on Twitter, Facebook, Instagram and LinkedIn.

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