[Snort-users] snort - unified2 formart

Joel Esler (jesler) jesler at ...589...
Wed Jun 11 10:44:47 EDT 2014

You have "-A fast -b” on the command line.  This overrides your output directive in the snort.conf

Joel Esler
Open Source Manager
Threat Intelligence Team Lead
Vulnerability Research Team

On Jun 11, 2014, at 10:30 AM, Michael Mittentag <michael.mittentag at ...13704......<mailto:michael.mittentag at ...11827...>> wrote:

I am running the latest version of snort


in /etc/snort/snort.conf

I added this and commented out the other lines:

output unified2: filename snort.u2, limit 128

if I try to start snort using the /etc/init.d/snortd script it runs it as:

/usr/sbin/snort -A fast -b -d -D -i eth0 -u snort -g snort -c /etc/snort/snort.conf -l /var/log/snort

and I never see those snort u2 files instead I see:


and barnyard2 seems to have an issue with reading those files.

If i manually run snort form (/usr/sbin/snort -c /etc/snort/snort.conf) without any options it then creates the right file type /var/log/snort/snort.u2.xxxxxxxx

It is almost like it is not reading /etc/snort/snort.conf?

If anyone has any ideas that would be great.


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