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Notice the familiar Dsquery command that produces a list of users who have not changed passwords for 60 days or more. It is followed by the pipe symbol, indicating that its output (by default, a list of DNs) is redirected. Following the pipe is the Dsmod command without a target object specified. That syntax tells the Dsmod command to receive the input from the Dsquery command. It is no coincidence that the target object identity parameter of a directory service command takes the DN of an object and that the Dsquery command produces, by default, a list of DNs. The Dsmod command will be repeated for each item in the list produced by Dsquery, so together these two commands Dsquery piped into Dsmod will set the change password flag for each user account in the Employees OU that has not changed passwords for the last 60 days or more. We will return to examine Dsmod in more detail. But to wrap up our discussion of Dsquery and piping its results to other commands, let s reiterate that the Dsquery command is often used to produce a list of objects meeting a set of criteria and to pipe that list of objects into one of the other directory service commands.

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Summary reports Summary reports include a set of statistics about ISA Server usage. Summary reports combine data from the Web proxy service logs and Firewall service logs. Web usage reports Web usage reports include a set of reports that display top Web users, common responses, and Web browsers. These reports show how an organization uses the Web and are based on the Web proxy service logs. Application usage reports Application usage reports display Internet application usage, including incoming and outgoing traffic, top users, client applications, and destinations. Application usage reports can help you to plan network capacity and determine bandwidth policies. Application usage reports are based on the Firewall service logs. Traffic and utilization reports Traffic and utilization reports display total Internet usage by application, protocol, and direction; average traffic and peak simultaneous connections; cache hit ratios; errors; and other statistics. Traffic and utilization reports can help you plan and monitor network capacity and determine bandwidth policies. Traffic and utilization reports combine data from the Web proxy service logs and the Firewall service logs.

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Description The percent of logical fragmentation (out-of-order pages in the index) The number of fragments (physically consecutive leaf pages) in the index The average number of pages in a single fragment in an index

Lesson 3: Creating Queues and Services 790 Creating a Message Queue 790 Creating a Service 795 Lesson Summary 797 Lesson Review 797 Lesson 4: Creating Conversations 798 Create a Conversation 798 Routing Messages to a Service 800 Lesson Summary 801 Lesson Review 802 Lesson 5: Sending and Receiving Messages 803 Sending Messages 803 Receive Messages 804 Lesson Summary 806 Lesson Review 806 Review 808 Summary 808 Key Terms 808 Case Scenario: Building a Service Broker Application 809 Suggested Practices 810 Configuring a Service Broker Solution 811 Take a Practice Test 811.

Figure 9-5

1. The answer to this question depends on whether you want the clients to be able to submit information that might be useful in identifying the source of problems. Activity tracing is useful when trying to correlate client actions with service actions. To do this, trace logs must be generated by both the client and the service. If the client application is deployed at another site, you need to provide a mechanism that enables the trace logs from the client portion of the application to be sent in. As for whether allowing this tracing to be performed is a good idea, the answer is almost inevitably yes. Problems are quite likely to be associated with the communications between the two pieces. Being able to correlate the traces will frequently be beneficial to the support staff, and it could very well help the development team identify bugs that would otherwise be difficult to track down. 2. An activity can be defined from either the business or technical perspective. The choice depends on the type of correlation needed. To debug a technical problem, creating a new activity with each call is a good idea. To address business-level issues, keeping track of the multiple calls within a business transaction might be effective. Ultimately, the decision about when a new activity should be created will depend on how the information is expected to be used.

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