[Snort-users] trouble starting snort

Truax, Shawn (MBS) Shawn.Truax at ...8509...
Mon Sep 13 10:31:01 EDT 2004


Hi Larry,
 
Looks like line 44 in your snort.conf has a typo or something missing in it.
Check that line and if you still can't see an issue post up the 10 lines
before and after that section.
 

Shawn Truax
Sr. Security Specialist
Corporate Security
155 University Ave.
Toronto, Ontario
M5H 3B7
(416)327-1107

-----Original Message-----
From: Larry Wichman [mailto:larrywichman at ...131...]
Sent: September 13, 2004 12:27 PM
To: snort-users at lists.sourceforge.net
Subject: [Snort-users] trouble starting snort


I am having trouble starting Snort. Can someone tell me what I am doing
wrong?
 
I am trying to start snort with the following command:
 snort -dev -c /etc/snort/snort.conf -i eth0

here is the output and error:

 

Running in IDS mode

Log directory = /var/log/snort

 

Initializing Network Interface eth0

OpenPcap() device eth0 network lookup:

        eth0: no IPv4 address assigned

 

        --== Initializing Snort ==--

Initializing Output Plugins!

Decoding Ethernet on interface eth0

Initializing Preprocessors!

Initializing Plug-ins!

Parsing Rules file /etc/snort/snort.conf

 

+++++++++++++++++++++++++++++++++++++++++++++++++++

Initializing rule chains...

ERROR: /etc/snort/snort.conf(44) => NULL rule type

Fatal Error, Quitting..

 

here is part of my snort.conf: 

 

 

 

#   http://www.snort.org     Snort 2.1.0 Ruleset

#     Contact: snort-sigs at lists.sourceforge.net

#--------------------------------------------------

# $Id: snort.conf,v 1.133.2.3 2004/02/25 16:52:51 jh8 Exp $

#

###################################################

# This file contains a sample snort configuration.

# You can take the following steps to create your own custom configuration:

#

#  1) Set the network variables for your network

#  2) Configure preprocessors

#  3) Configure output plugins

#  4) Customize your rule set

#

###################################################

# Step #1: Set the network variables:

#

# You must change the following variables to reflect your local network. The

# variable is currently setup for an RFC 1918 address space.

#

# You can specify it explicitly as:

#

# var HOME_NET 10.1.1.0/24

#

# or use global variable $<interfacename>_ADDRESS which will be always

# initialized to IP address and netmask of the network interface which you
run

# snort at.  Under Windows, this must be specified as

# $(<interfacename>_ADDRESS), such as:

# $(\Device\Packet_{12345678-90AB-CDEF-1234567890AB}_ADDRESS)

#

# var HOME_NET $eth0_ADDRESS

#

# You can specify lists of IP addresses for HOME_NET

# by separating the IPs with commas like this:

#

# var HOME_NET [10.1.1.0/24,192.168.1.0/24]

#

# MAKE SURE YOU DON'T PLACE ANY SPACES IN YOUR LIST!

#

# or you can specify the variable to be any IP address

# like this:

var HOME_NET x.x.x.0/24

 

# Set up the external network addresses as well.  A good start may be "any"

var EXTERNAL_NET any

 

output database: log, mysql, user=root password=xxxxxx dbname=xxxx
host=x.x.x.x

 

# Configure your server lists.  This allows snort to only look for attacks
to

# systems that have a service up.  Why look for HTTP attacks if you are not

# running a web server?  This allows quick filtering based on IP addresses

# These configurations MUST follow the same configuration scheme as defined

# above for $HOME_NET.

 

# List of DNS servers on your network

# var DNS_SERVERS $HOME_NET

 

# List of SMTP servers on your network

var SMTP_SERVERS $HOME_NET

 # Configure your service ports.  This allows snort to look for attacks
destined

# to a specific application only on the ports that application runs on.  For

# example, if you run a web server on port 8081, set your HTTP_PORTS
variable

# like this:



Cheers,

Lawrence A. Wichman
2719 W Thomas
Apt 2
Chicago
Il, 60622
773.807.7606




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