Just a small point...
ISA server does not harden the underlying OS to any appreciable degree : even
MS recommend the use of a commercial firewall (eg Chckpoint FW-1) outside the
ISA server. Sorry I don't have any URL's to back this up but google is your
friend here...
So, if drawing up pros and cons of ISA vs. Linux firewall/squid, be sure to
include the cost of a seperate firewall box in the ISA solution, esp if it's
"enterprise level".
my $0.02
Andrew.
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