Snort mailing list archives
RE: Snort and acid prob!!! Acid not running :(
From: "Patrick S. Harper" <patrick () internetsecurityguru com>
Date: Wed, 14 Jul 2004 06:06:23 -0500
You are you on a switch, so due to the nature of switched networking, you will only see traffic destined for the switch port the snort box is on. Can you span a port?. Is it all one vlan or are they unmanaged switches? Did you try scanning it (the IP of the snort box) with one of the tools I mentioned? Patrick S. Harper | CISSP RHCT MCSE www.internetsecurityguru.com www.ntsug.org - Snort Users Group "If there is no light at the end of the tunnel, get down there and light the damn thing yourself!" -----Original Message----- From: Aparna Mangla [mailto:aparna.mangla () gmail com] Sent: Wednesday, July 14, 2004 5:57 AM To: Patrick S. Harper Subject: Re: Snort and acid prob!!! Acid not running :( well... we hav one router and 4 switches....i have snort installed on my linux box (one among the 50 PCs) and we dont use proxies here. all the machines are directly connected. hope i gave the right information.. Now what? :( Aparna Mangla On Wed, 14 Jul 2004 05:52:21 -0500, Patrick S. Harper <patrick () internetsecurityguru com> wrote:
Where is the IDS placed? Is it on a switch? If it is, do you have the sniffing interface on a span port? Were any of the 471 packets something that would trigger an alert? Nope, because it says ALERTS: 0. Download Nessus (www.nessus.org) or CIS (http://www.cerberus-infosec.co.uk/CIS-5.0.02.zip) and scan the interface on the snort box you are sniffing on to test it first to see if you have a problem with placement. I am betting you are on a switch and only seeing broadcast traffic. If you can see the ACID interface then it is running, snort is starting so mysql is running, if you have your output line correct in your snort.conf and your acid_conf.php database lines correct then it is just a matter of your box not seeing any traffic. Where exactly do you have this placed in relation to your 50 PC's? Hope this helps Patrick S. Harper | CISSP RHCT MCSE www.internetsecurityguru.com www.ntsug.org - Snort Users Group "If there is no light at the end of the tunnel, get down there and light the damn thing yourself!" -----Original Message----- From: Aparna Mangla [mailto:aparna.mangla () gmail com] Sent: Wednesday, July 14, 2004 5:12 AM To: Patrick S. Harper; nwoliver () internetsecurityguru com; snort-users () lists sourceforge net Subject: Snort and acid prob!!! Acid not running :( hi plz help me urgently. I have installed snort-2.0.2 with acid 0.9.6b23 on redhat 9. I think i followed all the steps correctly. and when i run : snort -c /etc/snort/snort.conf i get the following output at the end: ====================================================================== ====== === Snort analyzed 471 out of 471 packets, dropping 0(0.000%) packets Breakdown by protocol: Action Stats: TCP: 29 (6.157%) ALERTS: 0 UDP: 208 (44.161%) LOGGED: 0 ICMP: 89 (18.896%) PASSED: 0 ARP: 90 (19.108%) EAPOL: 0 (0.000%) IPv6: 0 (0.000%) IPX: 0 (0.000%) OTHER: 55 (11.677%) DISCARD: 0 (0.000%) ====================================================================== ====== === Wireless Stats: Breakdown by type: Management Packets: 0 (0.000%) Control Packets: 0 (0.000%) Data Packets: 0 (0.000%) ====================================================================== ====== === Fragmentation Stats: Fragmented IP Packets: 0 (0.000%) Fragment Trackers: 0 Rebuilt IP Packets: 0 Frag elements used: 0 Discarded(incomplete): 0 Discarded(timeout): 0 Frag2 memory faults: 0 ====================================================================== ====== === TCP Stream Reassembly Stats: TCP Packets Used: 29 (6.157%) Stream Trackers: 9 Stream flushes: 0 Segments used: 0 Stream4 Memory Faults: 0 ====================================================================== ====== === database: Closing connection to database "snort" Snort exiting Now...when i start the httpd interface, i get 0 alerts, 0 sensors, 0 % UDP, 0% TCP.....as though it is inactive. I am connected on LAN of 50 PCs. Please tell me how to correct it. Hoping for an urgent reply. Thanking you Aparna Mangla --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.719 / Virus Database: 475 - Release Date: 7/12/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.719 / Virus Database: 475 - Release Date: 7/12/2004
--- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.719 / Virus Database: 475 - Release Date: 7/12/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.719 / Virus Database: 475 - Release Date: 7/12/2004 ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ 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
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- RE: Snort and acid prob!!! Acid not running :( Patrick S. Harper (Jul 14)
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