Snort mailing list archives
FlexResp and react keyword
From: Rob Collins <robtompc () yahoo com>
Date: Sat, 6 Oct 2001 11:01:52 -0700 (PDT)
Having some trouble with the react keyword (and
probably the resp keyword??) with snort-1.8.1-RELEASE,
on Linux Mandrake 7.2 (kernel 2.2.17).
Details:
compile snort with './configure --enable-flexresp'
create a snort.conf file:
=========================
ruletype suspicious
{
type log
output log_tcpdump: suspicious.log
}
suspicious tcp any any -> 127.0.0.1 80 \
(msg: "http attempt"; react: block, msg;)
=========================
mkdir /var/log/snort
run '/usr/local/bin/snort -dev -i lo -l /var/log/snort
-c ./snort.conf'
and run 'lynx localhost'
Results:
lynx gets the web page, takes exactly 104 packets. I
was expecting snort to 'magically' block the
connection
I get a /var/log/snort/1006 () 0845-suspicious log, and
an empty alert file in the same dir. Running
'/usr/local/bin/snort -dvr
/var/log/snort/1006\@0845-suspicious.log' I get:
===================================================
Log directory =
--== Initializing Snort ==--
TCPDUMP file reading mode.
Read network traffic from
"/var/log/snort/1006 () 0845-suspicious log" file.
snaplen = 1514
===================================================
After that it freezes, have to kill -9 it. Running
'tcpdump -F /var/log/snort/1006\@0845-suspicious.log'
I get:
======================
tcpdump: illegal char 'o'
======================
the o is a lowercase o with a hat '^' over it.
So;
1> The rule is triggered, because snort creates the
logfile. How come the react keyword doesn't block the
connection?
2> The logfile is unreadable. Any idea why?
=====
--r
"Experience is that marvelous thing that enables you to recognize a mistake when you make it again." -- F. P. Jones
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Current thread:
- FlexResp and react keyword Rob Collins (Oct 06)
- <Possible follow-ups>
- Re: FlexResp and react keyword Rob Collins (Oct 06)
- RE: FlexResp and react keyword Rob Collins (Oct 06)
- Re: RE: FlexResp and react keyword Jason Haar (Oct 07)
