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Role of IDS in Incident Response
As seen above, sometimes part of
that response is accomplished FOR you, by the IDS doing what it can
to stop the attack, determine the extent of the damage, and safeguard
the system or your network from further attacks by taking actions
like shutting down services.
At other times, it’s up to
you to get the email, page, or alert on your computer screen, and race
into action. Do you immediately shut the attacker off? Or do you
let them continue for a while, and try to determine the source of the
attack so that you might have a better lead on who could be prosecuted
later? (Take note: few prosecutions of this sort are successful.)
Do you yank your site’s Internet
connection? All of these are potentially valid actions that the authors
have seen network administrators take more than once.
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CertiGuide for Security+ (http://www.CertiGuide.com/secplus/) on CertiGuide.com
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Adapted with permission from a work created by Tcat Houser et al.
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