Microsoft Press mcts training kit 70 - 643 applications platform configuring phần 8 pot

Lesson 1: Configuring Windows Media Services 459 Figure 8-22 Viewing an announcement Web page created using the Unicast Announcement Wizard The Edit Announcement Metadata page enables you to specify details related to the title and author of the content as well as copyright details. This information will be sent to users’ media player applications automatically. To verify the settings you have selected, you can use the buttons in the Test Unicast Announce- ment window. This window is launched automatically after you have completed the Unicast Announcement Wizard. (See Figure 8-23.) The first Test button will provide direct access to the playlist and should open Windows Media Player and start playing the content. The Test Web Page With Embedded Player option Test button will launch Internet Explorer and load the test Web page (if one was created). 460 Chapter 8 Configuring Windows Media Services Figure 8-23 Testing announcements in the Windows Media Services Administration application Using the Multicast Announcement Wizard When configuring publishing points that support multicast broadcasting of media streams, you can use the Multicast Announcement Wizard to create the necessary files. The Specify Files To Create page enables you to select the method by which you will provide links to a mul- ticast stream. (See Figure 8-24.) Figure 8-24 Creating a multicast announcement Lesson 1: Configuring Windows Media Services 461 The default option, Multicast Information File (.nsc) And Announcement File (.asx) creates all the necessary files to provide access to the content. You can also create or re-create the .nsc or .asx files individually. The Automatically Create A Web Page option generates an HTML file that includes a link to the multicast content. The Stream Formats page enables you to define which streams will be made available through the announcement. You can provide access to different streams located on various publishing points either on the same server or on another Windows Media Services server. Click the Add button to access the Add Stream Formats dialog box. (See Figure 8-25.) The Location Of Con- tent setting can point directly to an audio or video file, or it can specify the location of a live media encoder. You can also link to a stream from another publishing point. When you click Next to continue, the Multicast Announcement Wizard automatically will attempt to verify the links to the content that you specified. Figure 8-25 Adding stream formats by using the Multicast Announcement Wizard The Save Multicast Announcement Files page lists the physical path locations into which the selected files will be stored. (See Figure 8-26.) The default location is the root folder for Default Web Site, created when you install the Web Server (IIS) server role. However, you can change the location to make the announcements available from another Web site. 462 Chapter 8 Configuring Windows Media Services Figure 8-26 Choosing file system locations for multicast announcement files An announcement can point to a Web server location or a network share for the actual .nsc file that stores the multicast information. You can choose the option in the Specify URL To Multi- cast Information File page. (See Figure 8-27.) If you are using a shared network location, the Windows Media Services service account must have permissions to read the file. The Network Share option is useful when you want to centralize the creation and management of multicast information files. Figure 8-27 Specifying the location of multicast information files Lesson 1: Configuring Windows Media Services 463 Because multicast streams are designed for providing access to live content, the audio or video stream is not available for replay automatically. You can use the Yes option on the Archive Con- tent page to create an archived video file automatically that can later be accessed after the live stream has concluded. After you have finished the steps of the Multicast Announcement Wizard, you can test the files and settings that were generated as you did with the Unicast Announcement Wizard. For example, you can load the Web page that contains an embedded player link for the live web- cast. You should note, however, that if a live stream has not started from the encoder link you specified, you will not yet be able to view any of the media. Configuring Publishing Point Properties Windows Media Services uses a plug-in–based architecture to configure the features and options available for each publishing point. To access these settings, select a publishing point using the Windows Media Services console, and then select the Properties tab. Figure 8-28 shows an overview of the available options. Figure 8-28 Viewing properties for an on-demand publishing point 464 Chapter 8 Configuring Windows Media Services The specific list of categories and their default property settings will vary based on the deci- sions you made when you created the publishing point. For example, the Limits category provides numerous options for managing bandwidth and performance. The options include: Q Limit Player Connections Q Limit Outgoing Distribution Connections Q Limit Aggregate Player Bandwidth (Kbps) Q Limit Aggregate Outgoing Distribution Bandwidth (Kbps) Q Limit Bandwidth Per Player Connection (Kbps) Q Limit Bandwidth Per Outgoing Distribution Connection (Kbps) Q Limit Fast Start Bandwidth Per Player Connection (Kbps) Q Limit Fast Cache Content Delivery Rate These settings are useful for managing network usage, especially when many Windows Media Services components might be competing for the same resources or when many publishing points are running on the same server. You will learn more about other properties settings related to security later in this lesson. Managing Advertising Settings For many content providers, audio and video advertisements are a significant source of reve- nue. You can use the Windows Media Services console to create and manage advertisements automatically. To view and modify settings, select a publishing point, and then click the Adver- tising tab. (See Figure 8-29.) Lesson 1: Configuring Windows Media Services 465 Figure 8-29 Configuring Advertising settings for a publishing point It is possible to include advertisements manually by including the relevant files within a play- list. However, this process can be tedious and time-consuming, especially when users can access many audio and video files from the same publishing point. There are three primary methods of presenting advertising. Q Banner ads Many Web pages that link to video or audio content can include advertise- ments on the source Web page. For example, the center of the screen might show a video broadcast while the surrounding areas of the page include relevant static image banner ads. This method does not require any special configuration in Windows Media Services. Q Wrapper ads A typical requirement for many organizations is the ability to play a spe- cific audio or video clip automatically before or after any streaming media is accessed. For example, a news video service might want to include a brief splash video whenever a user accesses their media. Wrapper ads point to a playlist that includes this informa- tion. These ads will also play automatically for live broadcasts, so they ensure that users who join a stream that has already started will also see the ads. Q Interstitial ads These ads are presented at various times during the steaming of specific content. For example, an online television broadcaster might include a new advertisement 466 Chapter 8 Configuring Windows Media Services after every four on-demand videos are played. You can define manually which ads are shown by modifying playlist settings on the Source tab of the properties of the publish- ing point. You can also edit playlists manually to achieve the same result. The Advertising tab also provides a link to the Windows Media Partner Center. Companies listed here are able to provide services such as centralized advertisement distribution and DRM. Configuring Security for Windows Media Services As with other types of network-accessible content, it is important to ensure that only autho- rized users have access to streamed audio and video. Some organizations provide content only to paid or registered users and want to prevent others from using network bandwidth. Unau- thorized individuals must also be prevented from directly linking to content or downloading and redistributing media files. Windows Media Services provides several methods for securing Streaming Media Services. Default security settings can be defined at the server level. These settings will apply automatically to all publishing points on the server. However, you can also override the settings for each individual publishing point. In this section, you will learn about authentication, authorization, and permissions settings that are available within the Proper- ties tab of a publishing point. Configuring Authentication Options By default, new publishing points will inherit the security-related settings that are defined at the server level. You can define specific settings for different types of content by accessing the Authentication category on the Properties tab of a publishing point. (See Figure 8-30.) You can authenticate users by one of three methods. WMS Anonymous User Authentication specifies that Windows Media Services should not prompt users for credentials. However, when this option is enabled, users will be able to access content designated only to the user account that has NTFS file system permissions. The default user account is the WMUS_servername account, which is automatically created when you install the Streaming Media Services server role. To change the account setting, double-click the WMS Anonymous User Authentication plug-in and provide the appropriate username and password. Anony- mous authentication is useful when you want all the users of the media server to have access to the same set of content. Lesson 1: Configuring Windows Media Services 467 Figure 8-30 Viewing Authentication settings for a publishing point WMS Negotiate Authentication uses either NTLM or Kerberos-based methods to determine the identity of the incoming user. This method is useful if you want to restrict access to users who have accounts on the local server or within an Active Directory directory services domain. When users attempt to access content, their Windows credentials will be used to determine whether they have permission to access the requested files. The WMS Digest Authentication option is used primarily to support Internet users. It relies on the HTTP protocol to request and receive credentials over the network. For security, it does not send the actual password but a hash that can be used to validate the user’s identity. Configuring Authorization Options The Authorization properties for a Windows Media Services server or a publishing point spec- ify how permissions will be checked before users have access to content. There are three avail- able options. (See Figure 8-31.) WMS NTFS ACL Authorization uses NTFS file system permissions to determine whether a user has access to files. If only anonymous authentication is enabled, then the designated anonymous user account must have at least permissions to the content. Otherwise, when user credentials are supplied, the user’s effective permissions are checked before a stream is sent. 468 Chapter 8 Configuring Windows Media Services Figure 8-31 Viewing Authorization options for a publishing point Some Windows Media Services installations are intended for use by only a certain group of computers. For example, an organization might provide company meeting videos that require all users to connect to the organization’s local area network (LAN) to obtain access to the con- tent. Administrators can use the WMS IP Address Authorization plug-in to specify which IP addresses will be able to access content. (See Figure 8-32.) Default settings can be configured to automatically allow or deny connections that are not explicitly listed. You can use the WMS Publishing Points ACL Authorization plug-in to configure which users and groups have access to the publishing point. (See Figure 8-33.) To access content, users must have at least Read permissions. By default, the Everyone group has these permissions to the content. Users and groups can also be granted Write and Create permission to modify the contents of the publishing point. [...]...Lesson 1: Configuring Windows Media Services Figure 8- 3 2 Configuring properties for WMS IP Address Authorization Figure 8- 3 3 Configuring WMS Publishing Points ACL Authorization settings 469 470 Chapter 8 Configuring Windows Media Services Using Web Server Permissions Another method of securing access to streamed... Exam 7 0- 643, remember that the exam objectives focus on configuring WSS based on requirements rather than on installation of the product For more information about downloading and installing Windows SharePoint Services on Windows Server 20 08, visit the Microsoft TechNet Windows SharePoint Services TechCenter at http://technet .microsoft. com/en-us /windowsserver/sharepoint/default.aspx Lesson 1: Configuring. .. download for the Microsoft Windows Server 2003 SP1 platform In addition, Microsoft offers a full-feature, server-side collaboration product called Microsoft Office SharePoint Server 2007 SharePoint Server 2007 provides additional features such as support for user profiles, single sign-on, personal sites, and many other features For more information about these technologies, see http://www .microsoft. com/sharepoint/default.mspx... Server (IIS) server role to Server2.contoso.com, using the default options For more information on installing this role, see Chapter 5, “Installing and Configuring Web Applications. ” 487 488 Chapter 9 Configuring Windows SharePoint Services Lesson 1: Configuring and Managing Windows SharePoint Services The primary purpose of WSS is to provide an environment in which users can collaborate by sharing... between teams and departments The Web-based user interface is designed to be quick and easy to learn and offers simple browser-based access from throughout the organization Many applications, such as those in the Microsoft Office suite, provide integration with WSS for managing and editing documents WSS is also a platform that developers can use to write their own Web-based applications based on specific... infrastructure Microsoft has provided the Windows Media Load Simulator for Windows Media Services 9 Series as a free tool for generating load and simulating user activity You can find this and other downloads on the Windows Media Services 9 Series Tools and Add-ins page at http://www .microsoft. com/windows/windowsmedia/forpros/serve/ tools.aspx 474 Chapter 8 Configuring Windows Media Services Configuring. .. methods Using a Third-Party DRM Partner Windows Media Services provides an extensible architecture that enables you to add plug-ins easily to provide DRM functionality These plug-ins are available from third-party organizations that specialize in content protection For more information about these organizations, visit the Microsoft Windows Media DRM Partners Web site at http://www .microsoft. com/windows... Right-click the WMS Cache Proxy plug-in, and select Enable You can also double-click the WMS Cache Proxy plug-in to access configuration options for the cache and proxy features The General tab enables you to select which protocol is preferred for streaming media between an origin server and the cache/proxy server The default setting is to use whichever protocol the client has requested 472 Chapter 8 Configuring. .. the appropriate file system permissions Lesson 1: Configuring Windows Media Services 481 C Copy the training videos to another folder and modify the root folder of the publishing point D Disable WMS Anonymous Authentication for the publishing point E Create a new Wrapper Playlist that includes only the training videos 3 You are a Windows Server 20 08 systems administrator responsible for providing access... 20 08 systems administrator who works for a company that provides IT training services Your company has recently decided to make training videos avaialble to registered students who are actively enrolled in a specific course Users should have access only to training videos related to the classes for which they are currently enrolled Students are given Windows user accounts within your organization’s training . select the Properties tab. Figure 8- 2 8 shows an overview of the available options. Figure 8- 2 8 Viewing properties for an on-demand publishing point 464 Chapter 8 Configuring Windows Media Services The. point. Lesson 1: Configuring Windows Media Services 469 Figure 8- 3 2 Configuring properties for WMS IP Address Authorization Figure 8- 3 3 Configuring WMS Publishing Points ACL Authorization settings 470 Chapter. publishing point, and then click the Adver- tising tab. (See Figure 8- 2 9.) Lesson 1: Configuring Windows Media Services 465 Figure 8- 2 9 Configuring Advertising settings for a publishing point It is