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.
Joel
No, 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
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