Snort mailing list archives
Re: Barnyard2 reports database insert errors
From: Dave Corsello <snort-users () wintertreemedia com>
Date: Fri, 01 Nov 2013 23:11:43 -0400
Hi elz,I wonder if this problem could be related to the fact that this is all happening within ESXi. My server has plenty of processing power and memory.
I also wonder if it could be related to my version of Linux or the the versions of prerequisite software? I'm running Ubuntu 10.04.3. Upgrading is not an option.
Here are my answers to your questions: 1. I'm using barnyard2 ver. 2.1.13 build 327.2. There's only one barnyard2 process and only one snort process running. The timestamp in the error message is the same as the timestamp of the corresponding record in the database. To me, this means that either: 1) there's just one successful insert, and barnyard2 isn't getting notified that the insert was successful; or 2) the event is triggering multiple times during the span of one second and the cid isn't incrementing. But 3 days ago, the very same signature triggered three times within the span of one second, and the cid incremented to allow insertion of all 3 alerts.
By elimination, I think the possibilities are that either: 1) MySQL is intermittently not sending back a status; 2) barnyard2 is intermittently not processing the MySQL status that it receives; or 3) sometimes the status message gets lost between the MySQL box and the Snort box. Number 3 might be supported by the fact that the NIC on my MySQL box shows in the neighborhood of 500 RX-ERR packets for every 3 million RX-OK packets daily. My Snort box shows consistently 0 RX-ERR and 0 TX-ERR. But it would seem to me that RX-ERRs on the MySQL box would more likely result in botched inserts, not in status messages failing to transmit, right? Unless the packets that are failing are ones that would indicate where MySQL should send a status message... I wonder if this would cause MySQL to throw errors that appear in a log... Nope, the MySQL error logs are empty. Again, the RX-ERRs could be related to something peculiar within the overall environment. I'll look into that when I have time.
3. Here's the result of the query that you suggested: +-------------------+--------+ | table_name | engine | +-------------------+--------+ | acid_ag | MyISAM | | acid_ag_alert | MyISAM | | acid_event | MyISAM | | acid_ip_cache | MyISAM | | agent_asset_names | InnoDB | | aggregated_events | NULL | | asset_names | InnoDB | | base_roles | MyISAM | | base_users | MyISAM | | caches | InnoDB | | classifications | InnoDB | | daily_caches | InnoDB | | data | InnoDB | | delayed_jobs | InnoDB | | detail | InnoDB | | encoding | InnoDB | | event | InnoDB | | events_with_join | NULL | | favorites | InnoDB | | icmphdr | InnoDB | | iphdr | InnoDB | | lookups | InnoDB | | notes | InnoDB | | notifications | InnoDB | | opt | InnoDB | | reference | InnoDB | | reference_system | InnoDB | | schema | InnoDB | | search | InnoDB | | sensor | InnoDB | | settings | InnoDB | | severities | InnoDB | | sig_class | InnoDB | | sig_reference | InnoDB | | signature | InnoDB | | tcphdr | InnoDB | | udphdr | InnoDB | | users | InnoDB | +-------------------+--------+ On 11/1/2013 3:12 PM, beenph wrote:
On Fri, Nov 1, 2013 at 11:58 AM, Dave Corsello <snort-users () wintertreemedia com> wrote:Folks,Hi Dave,I asked about this a long time ago, and just recently looked at the problem again. I'm not sure if it's a barnyard2 problem, a MySQL problem, or a problem with some other component. I'm getting intermittent errors similar to the following: Nov 1 10:25:14 snort2 barnyard2[XXXXX]: [Database()]: Insertion of Query [INSERT INTO event (sid,cid,signature,timestamp) VALUES (X, XXXXXX, XXXXXX, '2013-11-01 10:25:09');] failed1. Which version of barnyard2 are you using? 2. If you say that the record is there, then its normal that you get this error because you can't have a record with the same sid(sensor id),cid(incident id) inserted. Would it be possible that you might have two barnyard2 process using the same configuration and processing the same spool file logging to the same database? wrong startup script for example. Which storage engine are you using with MySQL? Could you return the result of the following query: SELECT table_name,engine FROM INFORMATION_SCHEMA.TABLES WHERE table_schema=DATABASE();But when I check the database, the record is there. So, either a status message is not making it from MySQL to barnyard2, or barnyard2 is dropping the ball somehow. The database resides on another machine. Traffic between the snort/barnyard2 machine and the MySQL machine is open on port 3306. Any ideas?-elz
------------------------------------------------------------------------------ Android is increasing in popularity, but the open development platform that developers love is also attractive to malware creators. Download this white paper to learn more about secure code signing practices that can help keep Android apps secure. http://pubads.g.doubleclick.net/gampad/clk?id=65839951&iu=/4140/ostg.clktrk
_______________________________________________ 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:
- Barnyard2 reports database insert errors Dave Corsello (Nov 01)
- Re: Barnyard2 reports database insert errors beenph (Nov 01)
- Re: Barnyard2 reports database insert errors Dave Corsello (Nov 01)
- Re: Barnyard2 reports database insert errors beenph (Nov 02)
- Re: Barnyard2 reports database insert errors Dave Corsello (Nov 02)
- Re: Barnyard2 reports database insert errors beenph (Nov 02)
- Re: Barnyard2 reports database insert errors Dave Corsello (Nov 03)
- Re: Barnyard2 reports database insert errors Dave Corsello (Nov 04)
- Re: Barnyard2 reports database insert errors beenph (Nov 04)
- Re: Barnyard2 reports database insert errors Dave Corsello (Nov 05)
- Re: Barnyard2 reports database insert errors waldo kitty (Nov 05)
- Re: Barnyard2 reports database insert errors Dave Corsello (Nov 05)
- Re: Barnyard2 reports database insert errors waldo kitty (Nov 05)
- Re: Barnyard2 reports database insert errors Dave Corsello (Nov 01)
- Re: Barnyard2 reports database insert errors beenph (Nov 01)