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On Wed, 25 Jan 2006, Devdas Bhagat wrote:
> On 23/01/06 18:30 -0500, Paul D. Robertson wrote:
>> On Sun, 22 Jan 2006, Devdas Bhagat wrote:
>>
>>> Isn't auditing against a policy exactly what an IDS is supposed to do?
>>
>> Not that I've ever seen. Everything I've seen says they look for
>> known-bad-stuff and produce alerts and false positives.
>>
>> ;)
>>
> <chorus> BOO! </chorus>
>
>>> It also verifies that your security policy has been implemented
>>> correctly at the firewall(s).
>>
>> As I said, in an ideal world, sure- however I've yet to see an IDS that
>> really and truly knows how to even express policy, let alone check against
>> it (unless your policy is "no bad stuff the IDS can find!") Heck, I've
>> yet to see real policy<->firewall rule mapping done in an effective way
>> without a human.
>>
> I suspect that my terminology has gotten disconnected with the marketing
> driven real world again.
>
> To me an IDS is not necessarily something that listens on the network
> only. Stuff that looks at the integrity of files on hosts, stuff that
> monitors and analyzes logs is part of the IDS too. The IDS is not a
> simple, single application, but a set of applications which work
> together to show the differences between operational and ideal
> implementations.
>
> A NIDS, or a HIDS is a part of the above, but is definitely not sufficient
> by itself.
I've seen this offered asa more total solution, LURQH <sp?!> does this as
core to their MSSP offering, but I have not seen any IDS/NIDS/HIDS that
truly goes that far. You have pointers to products that provided log
analysis as well as traffic monitoring for anomalies?
Thanks,
Ron DuFresne
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Received on Feb 01 2006
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