CHAPTER 11 Understanding Client Deployment Scenarios with ISA Server 2006
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Preparing an ISA Environment for the Firewall Client
FIGURE 11.4 Creating DHCP WPad entries for automatic client configuration.
NOTE
The biggest downside to DHCP auto discovery is that clients must have local administrator
rights on their machines to have the proxy server setting changed via this technique.
If local users do not have those rights, then DNS auto discovery should be used
instead of, or in combination with, DHCP auto discovery.
Configuring Proxy Client Auto Discovery with DNS
The Domain Name System (DNS) is also a likely candidate for auto discovery information
to be published. Using a Wpad entry in each forward lookup zone where clients need
proxy server settings configured is an ideal way to automate the deployment of the
settings.
Assuming DNS and a forward lookup zone is set up in an environment, auto discovery can
be enabled through the following technique:
1. Log in with admin rights to the DNS server.
2. Open the DNS Console (Start, All Programs, Administrative Tools, DNS).
A host record that corresponds with ISA is required, so it is necessary to set up one in
advance if it hasn??™t already been configured.
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