Re: [Full-Disclosure] Why should one buy (or not) an Appliance-based security gateway?
From: Paul Schmehl (pauls_at_utdallas.edu)
To: Bernardo Santos Wernesback <firstname.lastname@example.org>, email@example.com Date: Fri, 30 Jul 2004 13:34:02 -0500
--On Friday, July 30, 2004 02:55:04 PM -0300 Bernardo Santos Wernesback
> A few colleagues and I started a discussion as to why one should or
> shouldn't buy an appliance-based firewall, ids/ips or other security
> appliance instead of installing software on a server.
> We thought about patching, performance, and other reason for each option
> but I'd like to hear what other people think.
> I would really appreciate if you could share your thoughts with me.
1) Most appliance-based devices do not allow access to the operating system
from the application. In fact, they don't even allow access to the
application, except for its configuration.
2) Most appliance-based devices have a kernel and OS that is specifically
built (or the latest buzz word "purpose-built") for the service they
provide, making them capable of running on lower speed processors and lower
memory footprints than a general purpose OS (or conversely, capable of
doing a great deal more with the same CPU speed and memory footprint.)
Those are the two main benefits that I hear most often touted. I haven't
done any research into those claims. Perhaps someone else has?
Paul Schmehl (firstname.lastname@example.org)
Adjunct Information Security Officer
The University of Texas at Dallas
AVIEN Founding Member
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