module 10: designing operating system deployment and maintenance
TRANSCRIPT
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Module 10:Designing Operating System Deployment
and Maintenance
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Module Overview
• Determining Operating System Deployment Requirements
• Designing Windows Deployment Services
• Windows Deployment Services Images
• Designing Multicast Transmission of Images
• Designing a Software Update Process
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Lesson 1: Determining Operating System Deployment Requirements
• Design Options for Deploying Operating Systems
• Security Considerations for Operating System Deployment
• Tools for Operating System Deployment
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Design Options for Deploying Operating Systems
Options Description
Bare metal Install on computer without existing software
Light touch Limited manual interaction
Zero touch No manual interaction
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Security Considerations for Operating System Deployment
Security considerations for operating system deployment planning:
• Secure user credentials, PIDS, company information, or other restricted data in answer files, log files or image files
• Secure the storage locations for images, user state, and backups
• Scan source and destination computers for viruses
• Do not transmit data over the Internet unless the connection is encrypted
• Secure the PXE network boot process to prevent unauthorized users from joining computers to the domain
• Windows Server 2008 domain controllers do not allow the NETSETUP_JOIN_UNSECURE option
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Lesson 2: Designing Windows Deployment Services
• Enhanced Features in WDS
• Network Infrastructure Requirements
• Comparing Transport Server and Deployment Server
• Considerations for Upgrading from RIS to WDS
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Enhanced Features in WDS
Enhanced features in WDS from RIS are:
• Support for deployment of Windows Vista and Windows Server 2008
• Higher performing PXE and TFTP servers
• New boot menu format
• Support for .wim format
• Windows PE as boot operating system
• Multicast support
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Network Infrastructure Requirements
Requirement Description
Active Directory Domain Services
• WDS server must be a member of a domain.
DHCP• Configures workstations with an IP
during PXE boot
DNS • Required for WDS server
NTFS volume • Required for image storage
Credentials
• Must be a local administrator on WDS server to install
• Must be a domain user to start WDS client
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Comparing Transport Server and Deployment Server
Deployment Server Transport Server
Server requirements
Requires AD DS, Dynamic Host Configuration Protocol (DHCP), and Dynamic Name Services (DNS) in the environment
• Does not require other servers in the environment
PXE Supports PXE boot with the default PXE provider
• Supports PXE boot using the default PXE provider, or if you have a custom PXE provider
Image serverIncludes the Windows Deployment Services Image Server (WdsImgSrv)
• Does not include the Windows Deployment Services Image Server (WdsImgSrv)
Transmission method
Allows unicasting and multicasting
• Allows only multicasting
Management tools
You manage using the Windows Deployment Services MMC snap-in or WDSUTIL
• You manage with WDSUTIL only
ClientUse the Windows Deployment Services client, WDSMCAST, or custom multicast client application
• Use WDSMCAST or custom client application only
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Considerations for Upgrading from RIS to WDS
Windows Server 2003 RIS to Windows Server 2008 WDS upgrade process:
• Upgrade RIS to WDS on Windows Server 2003
• Change WDS from legacy mode to native mode
• Upgrade to Windows Server 2008
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Lesson 3: Windows Deployment Services Images
• Image Capture Utilities
• Considerations for Maintaining Boot and Install Images
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Image Capture Utilities
Functionality WDSCapture ImageX
Captures a partial volume? No Yes
Captures a non-Sysprep image? No Yes
Specifies compression type? Yes: only LZX or XPRESS
Yes: LZX, XPRESS, or no compression
Uploads directly to WDS Server? Yes No
Can the process be automated? Yes Yes
Has a GUI? Yes No
Provides additional functionality beyond image capture? No Yes
Specifies capture exclusion list? Yes Yes
Captures directly to network location without making a local image copy? No Yes
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Considerations for Maintaining Boot and Install Images
Boot images:
• Must be Windows PE in .wim format
• Must be marked as boot from RAMDISK
• Boot.wim must not be older than the operating system being deployed
• Must have all necessary drivers
Install images:
• Windows Vista can only be rearmed three times
• You can mount and edit offline images by using ImageX
• Editing offline images is not suitable for application installs
• You must export the image from WDS to edit offline
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Lesson 4: Designing Multicast Transmission of Images
• Types of Multicast Transmissions
• Considerations for Designing Multicast Transmissions
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Types of Multicast Transmissions
Scheduled-cast:
• Multicast begins when criteria are met
• Criteria are: number of clients joined or specific day and time
• Clients cannot join after multicast has started
Auto-cast:
• Multicast begins when a single computer requests it
• Additional computers can join in
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Considerations for Designing Multicast Transmissions
Considerations for designing multicast transmissions are:
• All routers must support multicasting
• Boot.wim from Windows Vista does not support multicasting (use boot.wim from 2008 media)
• If multiple servers are using multicast, they must use unique multicast addresses
• Use MADCAP to avoid conflicting multicast addresses
• You must restart WDS for network configuration changes to take effect
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Lesson 5: Designing a Software Update Process
• Guidelines for Planning WSUS Infrastructure
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Guidelines for Planning a WSUS Infrastructure
When planning the number and placement of servers:
• Connect one WSUS server to the Internet
• Chain WSUS servers
• Place servers close to client computers
When planning the configuration of servers:
• Download updates in the languages required
• Use a local database or Microsoft Update
• Create a synchronization schedule for downloads