What organizations have found is that having a dedicated proxy server
enables all communications from clients to external websites to be monitored and
controlled.
A welcome side effect to using ISA Server 2006 to provide for proxy server functionality is
that clients avoid making direct connections from the internal network to the Internet.
Best-practice security design stipulates that client workstations (which are more vulnerable
to attack, spyware and virus infection, and other exploits) should not have direct, unsupervised
access out to an untrusted network such as the Internet.
By funneling all client web traffic through the ISA server for proxy functionality, organizations
have newfound control over monitoring, filtering, and protecting client web and
FTP traffic. This also allows for highly functional third-party proxy add-ons that provide
for intelligent filtering of client traffic to block access to particular types of websites
and/or scanning of the traffic for viruses, exploits, and spyware.
Pre-Caching Commonly Used Content
ISA Server 2006 content-caching capability includes the capability to automatically download
content on a predefined basis to make it fresh and available to clients on the
network.
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