Snort mailing list archives
Re: confuse with alerts file
From: Bamm Visscher <bamm.visscher () gmail com>
Date: Tue, 28 Sep 2004 14:44:20 -0500
Yes, he is LOGing to binary (I see the -b option), but he is ALERTing to something else. If you do NOT define an alert output in your snort.conf or on the cmd line, but use -b on the command line, you will ALERT to /var/log/snort/alert and LOG to snort.log.########. LOG and ALERT are two seperate facilities. One switch CANNOT affect them both. In my previous response, my guess was that he is using "output database: alert, blah" in his snort.conf on the second machine and "output database: log" on the original. I just reread his post though, and I think he is saying he sees alert data in /var/log/messages (it's a hard post to follow), so he must of turned on the ALERT_SYSLOG function in his snort.conf on the second machine or is using switches not included in his original post. Maku, Can you send the exact cmd line switches and output of `grep '^output' snort.conf` to the list? Bammkkkk On Tue, 28 Sep 2004 15:15:45 -0400, Esler, Joel - Contractor <joel.esler () rcert-s army mil> wrote:
In the default setup, if you log to binary it /will not/ generate the ascii mode, however, maku says that the log files being produced are snort.log.###.. This is indicative of binary logging mode. J -----Original Message----- From: Bamm Visscher [mailto:bamm.visscher () gmail com] Sent: Tuesday, September 28, 2004 3:07 PM To: Esler, Joel - Contractor Cc: maku bex; snort-users () lists sourceforge net Subject: Re: [Snort-users] confuse with alerts file Comments inline. On Tue, 28 Sep 2004 12:06:54 -0400, Esler, Joel - Contractor <joel.esler () rcert-s army mil> wrote:Because you are using the -b option (binary logging) it is logging into pcap format. Remove the -b to generate an alert file. However, -b is much more useful if you are familiar with Tcpdump or ethereal. JoelNo, that is not correct. The -b (binary logging) option has nothing to do with an alert file being generated. I am not sure why the output facilities are so misunderstood, but here again is an explanation. Snort has two output facilities: alert and log. The default plugin for the alert facility is ALERT_FULL and the default log facility is LOG_ASCII. ALERT_FULL is your std alert output to the /var/log/alert file, while LOG_ASCII writes packet data in ascii format to directories and files based on ip address/protos/ports/etc. The -b option changes the default behavior of the log facility only (to LOG_PCAP).-----Original Message----- From: snort-users-admin () lists sourceforge net [mailto:snort-users-admin () lists sourceforge net] On Behalf Of maku bex Sent: Monday, September 27, 2004 8:06 AM To: snort-users () lists sourceforge net Subject: [Snort-users] confuse with alerts file i'm just started with snort.....the sensor was running fine lately..... but sometimes.....when i'm trying to play around with it into another new box.....the snort itself is not generate any output into alerts file which is located in /var/log/snort FYI, i usually use this configuration... [snort.conf] output database: log, mysql, and i run with this command... snort -qbID -i eth0 -c /etc/snort/snort.conf -u snort -g snort m 007 then i cd to /var/log/snort/ what i'm confused is theres no alerts file here but except of snort.log.smething so i tail messages log in /var/log/ , yes the snort can see packets going through.... but why it not generates the alerts file like in the 1st box...? can anyone help me out....Sounds like you may have your database output plugin set to use the alert facility (output database: alert VERSUS output database: log). I'd double check that. Bammkkkk -- sguil - The Analyst Console for NSM http://sguil.sf.net
-- sguil - The Analyst Console for NSM http://sguil.sf.net ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl _______________________________________________ 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:
- confuse with alerts file maku bex (Sep 27)
- <Possible follow-ups>
- confuse with alerts file maku bex (Sep 28)
- RE: confuse with alerts file Esler, Joel - Contractor (Sep 28)
- Re: confuse with alerts file Bamm Visscher (Sep 28)
- RE: confuse with alerts file Esler, Joel - Contractor (Sep 28)
- Re: confuse with alerts file Bamm Visscher (Sep 28)
- Re: confuse with alerts file maku bex (Sep 28)
- Re: confuse with alerts file Bamm Visscher (Sep 29)
- Re: confuse with alerts file Bamm Visscher (Sep 28)