nanog mailing list archives

Re: Using snort to detect if your users are doing interesting things?


From: Randy Bush <randy () psg com>
Date: Thu, 9 Jun 2005 11:50:12 -0700


My suggestion, in the case that you'll use snort, is to do some extensive
testing on a non-production network.  Take the time to learn and
understand its functionality and intended purpose.
Also figure out what you're going to do with the output.  Do you have 
the resources to investigate apparent misbehavior?  Remember that any 
IDS will have a certain false positive rate.  Even for true positives, 
do you have the customer care resources to notify your users and (if 
appropriate) hold their hands while they disinfect their machines.

it's  enough of a pita to clean up the syslogs from all the 25k/day
password attacjs per host, when one does not have password ssh
even enabled.

randy


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