nanog mailing list archives
Re: Using snort to detect if your users are doing interesting things?
From: "Steven M. Bellovin" <smb () cs columbia edu>
Date: Thu, 09 Jun 2005 12:08:09 -0400
In message <OF459F2104.B0AF328C-ON8525701B.00558EF8-8525701B.00561C82 () mail kals ec.com>, trainier () kalsec com writes:
As it was already noted, you need to be very careful about how you set your IDS up, specifically if you choose snort. Snort is a very powerful tool, when used correctly. Unfortunately, when used incorrectly, it can hose your network over completely. 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. --Steven M. Bellovin, http://www.cs.columbia.edu/~smb
Current thread:
- Using snort to detect if your users are doing interesting things? Drew Weaver (Jun 09)
- Re: Using snort to detect if your users are doing interesting things? Thor Lancelot Simon (Jun 09)
- Re: Using snort to detect if your users are doing interesting things? trainier (Jun 09)
- Re: Using snort to detect if your users are doing interesting things? Steven M. Bellovin (Jun 09)
- Re: Using snort to detect if your users are doing interesting things? Christian Kuhtz (Jun 09)
- Re: Using snort to detect if your users are doing interesting things? Randy Bush (Jun 09)
- Re: Using snort to detect if your users are doing interesting things? Kim Onnel (Jun 09)
- Re: Using snort to detect if your users are doing interesting things? Jeroen Massar (Jun 10)
- Re: Using snort to detect if your users are doing interesting things? trainier (Jun 09)
- Re: Using snort to detect if your users are doing interesting things? Thor Lancelot Simon (Jun 09)
- Re: Using snort to detect if your users are doing interesting things? Christian Kuhtz (Jun 09)