asp.net c# print barcode After this lesson, you will be able to in Visual C#

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Describe the purpose of the directory service log in the Event Viewer console Describe the purpose of the file replication service log in the Event Viewer console Describe the purpose of System Monitor Use System Monitor to monitor performance counters
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Estimated lesson time: 25 minutes
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Understanding the Directory and File Replication Service Logs
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Windows Server 2003 provides the Event Viewer console as a way to monitor Windowswide events such as application, security, and system events, and service-specific events such as directory service events. These events are recorded in event logs. By default, there are three logs available to view in Event Viewer: the application log, the security log, and the system log. The security log is accessible only to system administrators and is enabled only if an audit policy is set up in a Group Policy Object (GPO) at the appropriate level. If additional services are installed, the services can enable a servicespecific log. When Active Directory is installed, the directory service log and the file replication service log are enabled. The directory service log contains errors, warnings, and information generated by Active Directory. If you experience problems with Active Directory, use the directory service log first to locate the causes of the problem. The directory service log can help you to understand the sequence and types of events that led up to a particular Active Directory performance problem. The File Replication service (FRS) is a service that provides multimaster file replica tion for designated directory trees between designated servers running Windows Server 2003. The designated directory trees must reside on disk partitions formatted with the version of the NTFS file system used in the Windows Server 2003 family. FRS is used by Active Directory to automatically synchronize content of the system
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Lesson 1
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Monitoring Performance with Service Logs and System Monitor
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14-3
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volume information across domain controllers. Therefore, you may find it necessary to monitor FRS replication. The file replication service log contains errors, warnings, and information generated by FRS.
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You can use the Ntfrsutl command-line utility, which is included in the Windows Support Tools, to monitor the FRS on local and remote computers. You can even configure Ntfrsutl to poll the FRS service at specific intervals. To learn more about the capa bilities of Ntfrsutl, run the ntfrsutl / command from a command prompt.
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Off the Record
Exam Tip
Know the purpose of the directory service log and the file replication service log.
In 13, Administering Security with Group Policy, you learned how to admin ister the security log by using the Event Viewer console. The tasks for administering the directory service log and the file replication service log are identical to those tasks you learned for administering the security log. You can use the same procedures to view, find events in, filter, configure, and archive the logs.
Understanding System Monitor
System Monitor is a tool that supports detailed monitoring of the use of operating sys tem resources. System Monitor is hosted in the Performance console. The functionality of System Monitor is based on Microsoft Windows NT Performance Monitor, not Microsoft Windows 98 System Monitor. System Monitor enables you to
Collect real-time performance data from a local computer or from a specific com puter on the network where you have permission View current or previously recorded performance data Present data in a printable graph, histogram, or report view Create reusable monitoring configurations that can be installed on other comput ers using Microsoft Management Console (MMC) Incorporate System Monitor functionality into applications that support ActiveX controls: for example, Web pages, Microsoft Word, or other applications in the Microsoft Office suite Create HTML pages from performance views
14-4
14
Managing Active Directory Performance
A sample System Monitor is shown in Figure 14-1.
Figure 14-1 A sample System Monitor
Performance Objects and Performance Counters
To monitor performance, you select performance objects and their associated perfor
mance counters. A performance object is a logical collection of performance counters
that is associated with a resource or service that can be monitored. A performance
counter is a data item associated with a performance object. For each performance
counter selected, System Monitor presents a value corresponding to a particular aspect
of the performance that is defined for the performance object.
To monitor Active Directory, you monitor the activity of the NT Directory Services
(NTDS) performance object. The counters in the NTDS performance object reflect the
functions of Active Directory, including the
Address book (AB)
Asynchronous thread queue (ATQ)
Directory Replication Agent (DRA)
Directory service (DS)
Key distribution center (KDC)
Kerberos authentications
Lightweight Directory Access Protocol (LDAP)
NTLM authentications
Security Accounts Manager (SAM)
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