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Automatic Network Protection Scenarios Using NetFlow

Basic information
Original title:Automatic Network Protection Scenarios Using NetFlow
Authors:Vojtěch Krmíček, Jan Vykopal
Further information
Citation:KRMÍČEK, Vojtěch and Jan VYKOPAL. Automatic Network Protection Scenarios Using NetFlow. 2012.Export BibTeX
@misc{970756,
author = {Krmíček, Vojtěch and Vykopal, Jan},
keywords = {automatic network protection; NetFlow; network security; monitoring},
language = {eng},
title = {Automatic Network Protection Scenarios Using NetFlow},
url = {http://www.cert.org/flocon/speakers.html},
year = {2012}
}
Original language:English
Field:Informatics
WWW:link to a new windowWeb konference, link to a new windowPrezentace
Type:R&D Presentation
Keywords:automatic network protection; NetFlow; network security; monitoring

Protecting a computer network against various types of network attacks is becoming more difficult due to increasing speeds of current computer networks and due to new types of network threats appearing every day. NetFlow monitoring is used with advantage to inspect all incoming traffic and detect attacks against monitored networks. In this presentation we will describe five scenarios using NetFlow for an automatic protection of a local network: 1) NetFlow monitoring and remotely triggered black hole filtering; 2) NetFlow monitoring and firewalling; 3) NetFlow monitoring and phishing quarantine; 4) NetFlow monitoring and traffic shaping; and 5) NetFlow monitoring and counter-attacking. These scenarios will be illustrated using the example of an SSH brute force attack. Possibilities to use a hardware device for NetFlow monitoring and traffic filtering will be discussed and compared to software alternatives.

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