Snort mailing list archives
Re: Alert on Max connections per IP
From: "Al Lewis (allewi)" <allewi () cisco com>
Date: Mon, 6 Jun 2016 23:02:43 +0000
Section on thresholding: See the section on the detection filters. http://manual-snort-org.s3-website-us-east-1.amazonaws.com/node34.html#detection_filter 1) track by the source - source IP match 2) count - number of rule matching in seconds that will cause event_filter limit to be exceeded. 3 ) within 60 seconds - within the time specified The third packet that matches the source IP will trigger an alert if within the 60 second time period. Albert Lewis QA SNORT/Sourcefire SOURCEfire, Inc. now part of Cisco 9780 Patuxent Woods Drive Columbia, MD 21046 Phone: (office) 443.430.7112 Email: allewi () cisco com -----Original Message----- From: Argcyborg [mailto:argcyborg () gmail com] Sent: Monday, June 06, 2016 6:40 PM To: wkitty42 () windstream net; snort-users () lists sourceforge net Subject: Re: [Snort-users] Alert on Max connections per IP Hi, if I use this rule, what be the threshold two config? alert tcp $EXTERNAL_NET any -> 192.168.1.50 4000 ( msg:"Deteccion de conexiones"; flow:established,to_server; content:"|0d 00 00 00 50 cc 5d ed b6 19 a5 91 00|"; nocase; rawbytes; detection_filter: track by_src, count 2, seconds 60; sid:1000050; rev:1;) Thanks again! -----Mensaje original----- De: wkitty42 () windstream net [mailto:wkitty42 () windstream net] Enviado el: domingo, 5 de junio de 2016 20:41 Para: snort-users () lists sourceforge net Asunto: Re: [Snort-users] Alert on Max connections per IP On 06/05/2016 05:39 PM, Argcyborg wrote:
Hi, is there a way to alert or drop when receive more than 8 connections
per ip
to an specific port ?
that's called thresholding... -- NOTE: No off-list assistance is given without prior approval. *Please keep mailing list traffic on the list* unless private contact is specifically requested and granted. ---------------------------------------------------------------------------- -- What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e _______________________________________________ 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://sourceforge.net/mailarchive/forum.php?forum_name=snort-users Please visit http://blog.snort.org to stay current on all the latest Snort news! ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e _______________________________________________ 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://sourceforge.net/mailarchive/forum.php?forum_name=snort-users Please visit http://blog.snort.org to stay current on all the latest Snort news! ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e _______________________________________________ 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://sourceforge.net/mailarchive/forum.php?forum_name=snort-users Please visit http://blog.snort.org to stay current on all the latest Snort news!
Current thread:
- Re: Alert on Max connections per IP Al Lewis (allewi) (Jun 06)
- Re: Alert on Max connections per IP Argcyborg (Jun 06)
- Re: Alert on Max connections per IP Russ (Jun 06)
- Re: Alert on Max connections per IP Argcyborg (Jun 06)