Microsoft manual ISA Server 2004 Configuration Guide

6.Click the Monitoring tab. Put checkmarks in the A simple query against this DNS server and A recursive query to other DNS servers check boxes. Then click the Test Now button. Note in the Test results frame that the Simple Query shows a Pass, while the Recursive Query displays a Fail. The reason is that an Access Rule has not been created that allows the caching-only DNS server access to the Internet. Later, we will create an Access Rule on the ISA Server 2004 firewall that allows the DNS server outbound access to DNS servers on the Internet.

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