Re: open source artificial ignorance-like systems

Wow, thanks for all the responses everyone.

I should have clarified my intentions for such a system. I'm not looking 
at this as a be all, end all, perfect log management system for an 
entire network. I have a commercial SIM product that handles my 
security-related needs well enough, and has correlation capabilities and 
all that, but ignores all logging data that isn't security-related. I 
can't customize it to act on this non-security related logging 
information, hence my request. What I described would solve all my 
remaining log analysis requirements, which are admittedly dead simple 
compared to the security logging requirements of any moderately complex 
network.  So yes, I really do want to completely ignore a whole lot of 
stuff on this side, and no, I'm not oversimplifying things, my 
requirements really are that simple. :)

Some of the more complex options mentioned (OSSIM, OSSEC) are overkill 
in the first environment I'm looking to implement this, given the 
existing security infrastructure I have in place. They are options I am 
considering in other network environments though, those are two I've 
looked at already.

The problem with `grep -v` is it alone doesn't come close to my 
requirements, until you start adding other Unix tools one by one, and it 
quickly becomes more and more work. Some of these options mentioned 
should net better results with less effort.


To summarize, here are the open source options suggested that do at 
least somewhat similar things to what I'm after, listed in alphabetical 
order:

Logcheck - http://sourceforge.net/projects/sentrytools/   acquired by 
Cisco, info here: *http://tinyurl.com/2tmvbd*
LogSurfer - http://www.crypt.gen.nz/logsurfer/
NBS, retail, logbayes, etc. - Not a "system", per se, but tools 
potentially very helpful to someone who wanted to hack together their 
own solution. 
http://www.ranum.com/security/computer_security/code/index.html
SEC - http://www.estpak.ee/~risto/sec/
SELMS - not online at the moment, documentation and info posted by 
Russell Fulton in this thread.
Swatch - http://swatch.sourceforge.net/   
http://sial.org/howto/logging/swatch/
OSSEC - http://www.ossec.net/
OSSIM - http://www.ossim.net/

Hopefully I didn't miss any.

Haven't had a chance to thoroughly look at all of the above projects 
yet, but at a glance, it definitely looks like there are multiple things 
there that will be suitable.

Thanks very much!
Chris