Snort mailing list archives
RE: Snort and high performance networks
From: "Rafael Ortega" <rafael.ortega () telecarrier com>
Date: Thu, 20 May 2004 15:41:15 -0500
Hello, All I'm currently snorting close to 800Mbps with no problem. What to do with the amount of info, is another story. I tried ACID, but after 24 hours and 700,000 events registered, the data base becomes too slow, even after indexing certain reference fields. I've taken to log into syslog in a separate file, and use snortalog nightly to generate reports from it. I still use Barnyard/ACID, but clean the database every 24 hours. I use it mostly to get quick snapshots of current events. I'm waiting for the company's DB people to give me a hand. Maybe migrate from Mysql to something more efficient or update the hardware (Sun Netra T1 with 512MB RAM doing only the DB). The sniffer is an Intel Xeon 2.4GHz with 1GB RAM running only snort and barnyard. -----Original Message----- From: snort-users-admin () lists sourceforge net [mailto:snort-users-admin () lists sourceforge net]On Behalf Of Kreimendahl, Chad J Sent: jueves, 20 de mayo de 2004 13:12 To: Christopher Rapier Cc: snort-users () lists sourceforge net Subject: RE: [Snort-users] Snort and high performance networks FWIW... I've got systems that are easily handling between 3-4Gbps each. That's partially hardware, partially OS, and a little tiny config work. Very near to all rules enabled on these interfaces, as well as all of the preprocessors (minus the broken ones), and a database output plugin. 0 dropped packets. If you check the archives for this list, you'll find discussions about kernels that can do polling against network devices, and how this enhances snort performance on high speed links (network performance in general, really). I believe I mention the OSes, maybe some config info and hardware used. If it's of any value, the machine I'm talking about above (handling
3Gbps) cost around $2500 (not sure if that's retail).
-----Original Message----- From: Christopher Rapier [mailto:rapier () psc edu] Sent: Thursday, May 20, 2004 11:32 AM Cc: snort-users () lists sourceforge net Subject: Re: [Snort-users] Snort and high performance networks On May 20, 2004, at 11:45 AM, Kreimendahl, Chad J wrote:
Well, I'm sure there is a system out there that can handle this, but
my
question would be: How in the world do you expect to get a 30GBps connection pumped to unix/win machine? Assuming Cisco device, you might be able to pump 2 SPANS (at 1G each) to a sensor... The other two should be no problem... But that 30G on a single device... Rough one.
Well, the 30GB is really just an example of the size of the networks I have to deal with. I don't actually think we can do much for that network Maybe after it gets broken up to different subnets inside of our network though. Anyway, the question was really about what the limits of snort are in terms of how much data it can handle assuming we can get that much data to it. Even with a minimal rule set on a fast unix box I wonder what we can pull off. I think other people out there must have run across using snort on higher speed links (say 600 to 800Mbps) and I wonder what sort of problems they've encountered and if their solutions might scale up to even higher speeds. ------------------------------------------------------- This SF.Net email is sponsored by: Oracle 10g Get certified on the hottest thing ever to hit the market... Oracle 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users ------------------------------------------------------- This SF.Net email is sponsored by: Oracle 10g Get certified on the hottest thing ever to hit the market... Oracle 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. http://ads.osdn.com/?ad_id149&alloc_id66&op=ick _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=ort-users ------------------------------------------------------- This SF.Net email is sponsored by: Oracle 10g Get certified on the hottest thing ever to hit the market... Oracle 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
Current thread:
- Snort and high performance networks Christopher Rapier (May 20)
- R: Snort and high performance networks Fausto Marzi (May 20)
- Re: Snort and high performance networks Jeff Coppock (May 21)
- <Possible follow-ups>
- RE: Snort and high performance networks Kreimendahl, Chad J (May 20)
- Re: Snort and high performance networks Christopher Rapier (May 20)
- RE: Snort and high performance networks Kreimendahl, Chad J (May 20)
- Re: Snort and high performance networks Chris Rapier (May 20)
- RE: Snort and high performance networks Rafael Ortega (Jun 01)
- RE: Snort and high performance networks Kreimendahl, Chad J (May 20)
- RE: Snort and high performance networks Rafael Ortega (May 21)
- Re: Snort and high performance networks Jason Haar (May 23)
- RE: Snort and high performance networks snort user (May 21)
- Re: Snort and high performance networks Christopher Rapier (May 21)
- RE: Snort and high performance networks Rafael Ortega (May 21)
- Re: Snort and high performance networks snort user (May 21)
- RE: Snort and high performance networks SN ORT (May 21)
- RE: Snort and high performance networks Kreimendahl, Chad J (May 21)
- Re: Snort and high performance networks Aaron (May 24)
(Thread continues...)