Snort mailing list archives
Re: HW Specs
From: "Alex Butcher, ISC/ISYS" <Alex.Butcher () bristol ac uk>
Date: Mon, 28 Nov 2005 14:08:25 +0000
--On 23 November 2005 11:59 +0000 "Alex Butcher, ISC/ISYS" <Alex.Butcher () bristol ac uk> wrote:
The sensor is currently monitoring a single 100Mbit (pretty much solid, 24x7) feed from a SPAN port and has all rules enabled (including bleeding and community), with a fair bit of session tagging, and is utilizing 15-30% of one CPU and 188Mbyte of memory to do so. Snort is linked against Phil Wood's modified libpcap and configured to use the maximum buffer size. Hopefully the CPU usage will decrease once I've had a chance to tune the rules properly.
A quick correction; I thought my statistics were lying to me, but apparently, the sensor has a single Gbit feed, rather than the single 100Mbit feed I was referring to in my original post above.
There is currently some packet loss, but I'm not quite sure at the moment whether it's the switch, the sensor hardware, the sensor->console link, or running on x86_64 that is causing this. My guess is the switch, but I've not verified this yet.
Alex.
Best Regards, Alex. -- Alex Butcher: Security & Integrity, Personal Computer Systems Group Information Systems and Computing GPG Key ID: F9B27DC9 GPG Fingerprint: D62A DD83 A0B8 D174 49C4 2849 832D 6C72 F9B2 7DC9 ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&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:
- HW Specs Brian J. Dyrehauge (Nov 21)
- Re: HW Specs Rich Moffitt (Nov 21)
- Re: HW Specs Gulfie (Nov 22)
- Re: HW Specs Alex Butcher, ISC/ISYS (Nov 23)
- Re: HW Specs Alex Butcher, ISC/ISYS (Nov 28)
- <Possible follow-ups>
- RE: HW Specs Timothy A. Holmes (Nov 23)
- RE: HW Specs Alex Butcher, ISC/ISYS (Nov 24)
- Re: HW Specs Rich Moffitt (Nov 21)