[Snort-users] Startup error post-package install

James Lay jlay at ...13475...
Thu Feb 26 12:45:34 EST 2015

On Thu, 2015-02-26 at 12:11 -0500, Research wrote:

> Hello,
> I have just begun using Snort and am following along with a book (“Linux Firewalls", 4th Edition (c) 2015).  I am currently just focussing on getting Snort up and running and plan to read the full Snort documentation set next.
> Installing on Ubuntu LTS via the following:
> 	sudo apt-get install snort
> …installs Snort.  Verision is:
> 	snort -V
> …returning "Version 2.9.2 IPv6 GRE (Build 78)”.
> I verified in: /etc/snort/snort.conf that the ruleset that ships with the Ubuntu package is correctly referenced:
> 	var RULE_PATH /etc/snort/rules
> I then attempted to start Snort in non-daemon mode with:
> 	sudo snort start -c /etc/snort/snort.conf
> …however I receive the following and then termination:
> 	(lines omitted)
> 	+++++++++++++++++++++++++++++++++++++++++++++++++++
> 	Initializing rule chains...
> 	WARNING /etc/snort/rules/chat.rules(33) threshold (in rule) is deprecated; use detection_filter instead.
> 	ERROR: /etc/snort/rules/community-virus.rules(19) !any is not allowed: !$DNS_SERVERS.
> 	Fatal Error, Quitting..
> At this point, however, I have not edited any of the default rules or snort.conf configuration file.
> If I then run Snort in daemon mode, there is success - Snort does not terminate - and I see alerts in the snort.log file.
> What is going wrong on the non-daemon start that is causing it to terminate ?
> Thanks
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I suggest you reference:


Installing and upgrading from source matches well with the speed at
which snort is updated (current version is 2.9.7....2.9.2 is ANCIENT).
I do not know of any repos that keep a current version of snort.

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