How secure is ISA?

  • From: "Tim Ray" <tray@xxxxxxxxxxx>
  • To: isalist@xxxxxxxxxxxxx
  • Date: Tue, 27 Nov 2001 02:53:09 -0700

One of our engineers claims that the Microsoft ISA server is not a proper
firewall because, if you create a tri-homed DMZ scenario, the DMZ uses
real IP addresses and simply routes allowed packets through to the server.
He says that a simple router would perform the same task. Is this true?
Does anyone have any comments on this - according to Microsoft having web
servers in the DMZ is more secure than using server publishing from the
LAT.

I'd be grateful for any comments or links to articles which discuss this.

Thanks in advance

Tim Ray


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