Full Disclosure mailing list archives
RE: Why should one buy (or not) an Appliance-based security gateway?
From: "Todd Towles" <toddtowles () brookshires com>
Date: Fri, 30 Jul 2004 16:00:29 -0500
I haven't done too much research into appliance-based devices but you would guess that are set up for one purpose. If I was going to build a Snort IDS box, it wouldn't have telnet open and it wouldn't use HTTP (unless I was using ACID, then I would use SSL). If I wanted to make a DHCP server - I would take Linux and strip the kernel of all unneeded modules and recompile. Turn off all unneeded services and make the image reuseable. Appliance-based devices should use the same idea. But maybe they are like cars. You can buy a sports car...which is designed for speed. Yet the fuel map isn't tuned like it could be and that is a lot of back pressure in the exhaust. Basically, it comes down to how much do you want to learn about network security and how secure do you want to me. Will properly fine-tuned homemade system beat an applicance? - yes!. But can everyone built that system, No! Wow did that make any sense? lol -----Original Message----- From: full-disclosure-admin () lists netsys com [mailto:full-disclosure-admin () lists netsys com] On Behalf Of Paul Schmehl Sent: Friday, July 30, 2004 1:34 PM To: Bernardo Santos Wernesback; full-disclosure () lists netsys com Subject: Re: [Full-disclosure] Why should one buy (or not) an Appliance-based security gateway? --On Friday, July 30, 2004 02:55:04 PM -0300 Bernardo Santos Wernesback <bernardo () ish com br> wrote:
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 (pauls () utdallas edu) Adjunct Information Security Officer The University of Texas at Dallas AVIEN Founding Member http://www.utdallas.edu/ir/security/ _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
Current thread:
- Why should one buy (or not) an Appliance-based security gateway? Bernardo Santos Wernesback (Jul 30)
- Re: Why should one buy (or not) an Appliance-based security gateway? Max Valdez (Jul 30)
- RE: Why should one buy (or not) an Appliance-based security gateway? Todd Towles (Jul 30)
- Re: Why should one buy (or not) an Appliance-based security gateway? Paul Schmehl (Jul 30)
- RE: Why should one buy (or not) an Appliance-based security gateway? Todd Towles (Jul 30)
- Re: Why should one buy (or not) an Appliance-based security gateway? Valdis . Kletnieks (Jul 30)
- Re: Why should one buy (or not) an Appliance-based security gateway? Ron DuFresne (Jul 30)
- Re: Why should one buy (or not) an Appliance-based security gateway? Max Valdez (Jul 30)