Geoff,
That's exactly what I'm after. Browser calls web server, which
calls CF server which calls SQL server. 3 separate servers each with a
firewall protecting them. So how does the web server talk to the CF server,
i.e. how do I execute CF code form the web server.
Brian Knott
-----Original Message-----
From: Geoff Bowers [mailto:[EMAIL PROTECTED]
Sent: Tuesday, 9 December 2003 4:53 PM
To: CFAussie Mailing List
Subject: [cfaussie] Re: 3 Tier application
Brian,
Knott, Brian wrote:
> Its all about security. Large corporation says it must be done with 3
> physical and logical tiers. O well they pay the bills.
If they are talking general security by the physical separation of the
servers you're more likely looking at separating ColdFusion from the
webserver ie. running in "distributed mode". I think Sean Corfield
mentioned this in an earlier note (I've provided a link to the technote
below).
In other words your physical server set up would run along the lines of:
CFMX/J2EE --> Firewall --> webserver (IIS/Apache) --> Firewall --> Internet
In this scenario, if the web server is compromised the would-be invader
cannot leverage CFMX/J2EE to further their hack in your environment.
For a technote on the details of running CFMX in "distributed mode" see:
http://www.macromedia.com/support/coldfusion/administration/cfmx_in_distribu
ted_mode/
The talk of separating the code into logicial tiers (ie. presentation
from business from data) doesn't necessarily play a part in the physical
hardware implementation.
Best regards,
-- geoff
http://www.daemon.com.au/
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