onbarcode.barcode.winforms.dll free download Figure 7-9 Windows Server 2003 Event Viewer in Visual Basic .NET

Create Data Matrix ECC200 in Visual Basic .NET Figure 7-9 Windows Server 2003 Event Viewer

Figure 7-9 Windows Server 2003 Event Viewer
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Lesson 2
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Using Network Load Balancing
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Using Nlb.exe
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You can control many of an NLB cluster s functions from the Windows Server 2003 command line using a utility called Nlb.exe. Some of the program s most useful param eters are as follows:
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Tip Nlb.exe is the Windows Server 2003 equivalent of the Wlbs.exe program included with earlier versions of the Windows operating system. If you are accustomed to using wlbs on your command lines, or more importantly, if you have existing scripts that use wlbs, you can continue to use them, because Windows Server 2003 includes the Wlbs.exe program as well.
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display Displays the configuration parameters stored in the registry for a spe cific cluster, plus the most recent cluster-related System log entries, the computer s IP configuration, and the cluster s current status. drain port Prevents a specified cluster from handling any new traffic conform ing to the rule containing the port specified by the port variable. drainstop Disables all cluster traffic handling after completing the transactions currently in process. params Displays all the current configuration parameters for a specified cluster on the local host, as follows:
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WLBS Cluster Control Utility V2.4 (c) 1997-2003 Microsoft Corporation.
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Cluster 192.168.2.101
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Retrieving parameters
Current time = 3/19/2003 1:55:24 AM
HostName = cz3net.int.adatum.com
ParametersVersion = 4
CurrentVersion = 00000204
EffectiveVersion = 00000201
InstallDate = 3E779B7C
HostPriority = 3
ClusterIPAddress = 192.168.2.101
ClusterNetworkMask = 255.255.255.0
DedicatedIPAddress = 192.168.2.3
DedicatedNetworkMask = 255.255.255.0
McastIPAddress = 0.0.0.0
ClusterName = www.int.adatum.com
ClusterNetworkAddress = 03-bf-c0-a8-02-65
IPToMACEnable = ENABLED
MulticastSupportEnable = ENABLED
IGMPSupport = DISABLED
MulticastARPEnable = ENABLED
MaskSourceMAC = ENABLED
AliveMsgPeriod = 1000
AliveMsgTolerance = 5
NumActions = 100
NumPackets = 200
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7
Clustering Servers
66 512 512 60 86400 DISABLED STARTED STARTED NONE DISABLED ENABLED DISABLED 60000 300000 ENABLED 2504 00000000 00000000 NO NO NO 10000 ENABLED
NumAliveMsgs
= DescriptorsPerAlloc
= MaxDescriptorAllocs
= TCPConnectionTimeout
= IPSecConnectionTimeout
= FilterICMP
= ClusterModeOnStart
= HostState
= PersistedStates
= ScaleSingleClient
= NBTSupportEnable
= NetmonAliveMsgs
= IPChangeDelay
= ConnectionCleanupDelay
= RemoteControlEnabled
= RemoteControlUDPPort
= RemoteControlCode
= RemoteMaintenanceEnabled
= BDATeaming
= TeamID
= Master
= ReverseHash
= IdentityHeartbeatPeriod
= IdentityHeartbeatEnabled
PortRules (1):
VIP Start End Prot Mode Pri Load Affinity --------------- ----- ----- ---- -------- --- ---- -------All 80 80 TCP Multiple Eql None
Statistics:
Number of active connections = Number of descriptors allocated=
query Displays the current state of all hosts in a specified cluster, as follows:
WLBS Cluster Control Utility V2.4 (c) 1997-2003 Microsoft Corporation.
Cluster 192.168.2.101
Host 3 has entered a converging state 3 time(s) since joining the cluster
and the last convergence completed at approximately: 3/19/2003 12:06:20 AM Host 3 converged with the following host(s) as part of the cluster: 1, 3
queryport port Displays the current status of the rule containing the port spec ified by the port variable, as follows:
WLBS Cluster Control Utility V2.4 (c) 1997-2003 Microsoft Corporation.
Cluster 192.168.2.101
Retrieving state for port rule 80
Rule is enabled
Packets: Accepted=0, Dropped=17
Lesson 2
Using Network Load Balancing
7-25
Exam Tip
Be sure to understand that the NLB.EXE and WLBS.EXE programs are one and the same, with identical functions and parameters.
Practice: Creating a Network Load Balancing Cluster
In this practice, you configure your Server01 computer to function as an IIS Web server, and then create a Network Load Balancing cluster, enabling clients to access the Web server using a cluster name and IP address. For the purposes of this practice, you are going to create a cluster consisting of a single server.
Exercise 1: Installing IIS
In this exercise, you install Internet Information Services on your Server01 computer, and create a simple home page so that your computer can function as a Web server. 1. Click Start, point to Control Panel, click Add Or Remove Programs. The Add Or Remove Programs window appears. 2. Click Add/Remove Windows Components. The Windows Components Wizard appears. 3. In the Components list, click the Application Server entry (but do not select its check box), and then click Details. The Application Server dialog box appears. 4. Select the Internet Information Services (IIS) check box, and then click OK. 5. Click Next. The Configuring Components page appears as the wizard installs the new software. Insert your Windows Server 2003, Enterprise Edition distribution disk, if the wizard prompts you to do so. 6. When the Completing the Windows Components Wizard page appears, click Finish. 7. Close the Add Or Remove Programs window. 8. Click Start, point to All Programs, point to Accessories, and then click Notepad. An Untitled Notepad window opens. 9. In the Untitled Notepad window, type the following:
<html>
<title>Hello, world.</title>
<body>
<h1>Hello, world.</h1>
</body>
</html>
This simple Hypertext Markup Language (HTML) script will function as the contents of your newly installed Web server. 10. From the File menu, select Save As. The Save As dialog box appears.
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7
Clustering Servers
11. Using the Save In drop-down list, browse to the C:\Inetpub\Wwwroot folder and save the file using the name default.htm. 12. From the File menu, select Open. The Open dialog box appears. 13. Using the Look In drop-down list, browse to the C:\Windows\System32\Driv ers\Etc folder and open the file called Hosts. (To open the Hosts file, you might need to select All Files from the Files Of Type drop-down list.) 14. At the end of the Hosts file, add a line like the following:
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