MCSE Cluster Server

Generating and Distributing a Virtual Hard Disk

 

Creating a Virtual Hard Disk

After you have prepared a virtual hard disk for cloning, you need to create a virtual hard disk of your master installation with a disk-imaging tool and save the virtual hard disk to a permanent storage location. You can use a third-party disk imaging software or a Microsoft technology called iBIG. If you are using a third-party product, refer to the accompanying documentation on how to create and distribute a virtual hard disk.

Startup Media

Before you can load virtual hard disks on destination computers, you need some kind of startup media to boot your computers from. Startup media contains the system files and device drivers that are necessary to start a computer so that the primary hard disk is accessible but not in use. Startup media might also contain network adapter and network drivers, CD and DVD device drivers, disk configuration tools, and scripts or batch files. You can use a floppy, CD, DVD or network boot as your startup media, depending on the capabilities of your destination computers.

If you use third-party disk imaging products, they often provide tools to create different startup media. Otherwise you need to create your own.

Follow these guidelines when creating your startup media:

• Your startup media must provide network support if you are distributing virtual hard disks across a network.
• Your startup media must provide CD or DVD device support if you are distributing virtual hard disks on media and you are using a floppy disk as your startup media.
• Your startup media must support the tools you need to copy a virtual hard disk from a storage location to a destination computer. For example, if your startup media is an MS-DOS startup disk then you need to use MS-DOS tools to copy the virtual hard disk onto the destination computer.

For more information about choosing and creating startup media, refer to the Microsoft Windows Server 2003 Corporate Deployment Tools User's Guide (Deploy.chm). Deploy.chm is included in the Deploy.cab file in the Support folder on the Windows Server 2003 operating CD.

Distributing Virtual Hard Disks

After an image (or images) has been created and placed on a distribution share (or distribution media such as CD or DVD) and you have a startup media to boot your destination computers, you are ready to distribute the images to destination computers.

You need to make sure that your cluster hardware and networks are set up as described in the Windows Advanced Server 2003 Online Help/Availability and Scalability/Cluster Servers. All of your cluster nodes that you will be installing already have to be connected to the shared storage.

You can load virtual hard disks to all of your cluster nodes simultaneously. Many third-party tools support multicast image distribution. You can also use iBIG to distribute virtual hard disks to your cluster nodes.

After you have distributed virtual hard disks to destination computers, sysprep runs Mini-Setup. After Mini-Setup finishes, you should verify that all of the nodes have successfully joined the cluster. Open NLB Manager to see which nodes participate in the cluster, and whether everything is up and running. If it is, your cluster is ready.

 

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MCSE : Security Specialist

Identifying Web Server Concepts

 

You can host your own Web services on the Internet by setting up a Web site. However, to set up your own Web site on the Internet, you must be familiar with the server technologies and methods available for  roviding content on the Internet.

 

Microsoft Internet Information Services (IIS) is a common software that enables you to provide content on the Internet. Using IIS, it is possible to provide services, such as Web pages, interactive applications, and catalogs for customers, and to post and track databases on the Web.

 

 

Defining a Web Server

A client computer connects to the Internet or an intranet by using a Web browser to find information stored and organized on a Web server. A Web server is a computer that uses TCP/IP to send Web page content to client computers over a network. A Web server communicates with clients by using an appropriate protocol, such as HTTP or HTTPS. The terms Web server and HTTP server are synonymous, because URLs identifying data on a Web server begin with http. For example, the Microsoft Web site is http://example.microsoft.com/.

Every Web server has an IP address and perhaps a domain name. For example, when you enter the URL http://example.microsoft.com/webpage.htm in your Web browser, it sends a request to the Web server with the domain namemicrosoft.com. Then the Web server locates and retrieves the page ms.htm, and sends it to your browser.

 

 

Microsoft Internet Information Services (IIS)

 

Windows 2003 includes Microsoft Internet Information Services (IIS), a network file and application server service that uses HTTP, FTP, NNTP, and SMTP to provide information over the Internet or an intranet.

IIS provides many useful features, including Microsoft Indexing Service, Secure Sockets Layer (SSL) support, Microsoft Windows Media Services, and additional developer support.

 

Indexing Service

Microsoft Indexing Service is a search engine that is integrated with IIS. When you install Indexing Service, it builds an index of files on the Web server. You can then search this index by using any Web browser with built-in search forms. The index is updated automatically whenever a file is added, deleted, or changed on the Web server.

Secure Sockets Layer (SSL)

IIS supports Secure Sockets Layer (SSL), which provides a security handshake between the Web server and a client before initiating a TCP/IP connection. This handshake establishes the level of security the client and Web server use and fulfills any authentication requirements for the connection. SSL also enables you to encrypt all of the information sent between the client and the Web server. HTTPS is a version of the HTTP protocol that uses SSL to secure communications between a Web server and clients.

 

Windows Media Services

IIS includes Microsoft Windows Media Services. Windows Media Services is a specification that enables Internet users to download live video, audio, and animation files from Web pages. It is a standards-based platform that delivers on-demand and live content for enhanced communication over the Internet.

 

Additional Developer Support

IIS provides additional developer support for Active Server Pages, scripting languages, such as the Microsoft Visual Basic®, Scripting Edition (VBScript) language and JavaScript, and remote administration using Microsoft FrontPage®.

 

  • Active Server Pages (ASP) is an open environment in which developers can combine HTML and programming to create dynamic and powerful Web  sites. The creation of dynamic content for Web pages is made possible by providing users with live access to a local database containing the latest information.

 

  • VBScript and JavaScript are two of the scripting languages that developers commonly use to create dynamic Web pages. The content of such Web pages changes based on user interaction or input. For example, a Web site that requires a valid user name and access password returns different pages based on whether or not the user enters a correct user name and password.

 

  • IIS enables developers to remotely administer Web pages by using Microsoft FrontPage, a visual authoring and Web-site management tool.

 

 


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