Snort mailing list archives
Re: -b binary logging question
From: Erek Adams <erek () theadamsfamily net>
Date: Tue, 3 Sep 2002 00:52:09 -0700 (PDT)
On Mon, 2 Sep 2002, John Sage wrote:
Having a discussion off-list about the -b binary logging switch, and suddenly I'm wondering... Does the -b binary logging switch *always* record all packets on the interface?
No, not unless you are logging everything that comes over the wire.
Or is the set of packets logged by -b changed when one starts to specify a snort.conf and thus check the packets against rules, whether alerts or passes?
Yes. :)
"If you're on a high speed network or you want to log the packets into a more compact form for later analysis you should consider logging in "binary mode". Binary mode logs the packets in "tcpdump format" to a single binary file in the logging directory: ./snort -l ./log -b Note the command line changes here. We don't need to specify a home network any longer because binary mode logs everything into a single file, which eliminates the need to tell it how to format the output directory structure." This implies that -b gets everything. OK: does it *always* get everything?
No, only if an alert, log, or <user_type> rule matched. I think the 'everything' mentioned there is 'all the packet and alert info'. Otherwise, you have alerts one place and packet dumps another. You _do_ need to use a '-h' or a 'reference net' config directive when obfuscating things. Otherwise it won't know which side of the packet to munge. Cheers! ----- Erek Adams Nifty-Type-Guy TheAdamsFamily.Net ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 _______________________________________________ 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:
- -b binary logging question John Sage (Sep 02)
- Re: -b binary logging question Erek Adams (Sep 03)
- Re: -b binary logging question Chris Green (Sep 03)
- Re: -b binary logging question John Sage (Sep 03)