Support for windows 7/server 2008/2008 r2 after january 2020

     

Because Windows hệ thống 2008 R2 provides many different functions, each organization has khổng lồ choose how khổng lồ best implement Windows server 2008 R2 và the various networking features that meet its own needs. In small network environments with fewer than 20 to 30 users, an organization might choose to implement all the Windows vps 2008 R2 features on a single server. However, in larger environments, multiple servers might be implemented lớn improve system performance, as well as provide fault tolerance & redundancy; thus, a more staged implementation of vi xử lý core services needs khổng lồ be taken.

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Windows server 2008 R2 chip core to an Active Directory Environment

For an organization that does not have Windows Active Directory already in place, that is one place lớn start because Active Directory domain Services is key to application and user authentication. For organizations that already have a fully operational Active Directory running on Windows 2003 or Windows 2008, upgrading lớn Active Directory domain name Services on Windows hệ thống 2008 R2 might be something that is addressed a little later in the upgrade cycle when AD DS 2008 R2 functionality is needed. To lớn get a lot of the Windows server 2008 R2 server functionality lượt thích 2008 R2 DFS, SharePoint Services, Hyper-V virtualization, & so on, an organization can still run on an older Active Directory environment (typically Active Directory 2003 native mode). However, the point is that Active Directory 2008 R2 is not a prerequisite to get Windows hệ thống 2008 R2 hệ thống role functionality.

Because Active Directory is more than a simple danh sách of users và passwords for authentication into a network, but rather a directory that Microsoft has embedded into the policy-based security, remote access security, & certificate-based security enhancements in Windows hệ thống 2008 R2, AD DS 2008 implementation does occur earlier in the migration cycle for organizations wanting lớn implement many of the new Active Directory 2008 R2 technologies, such as Active Directory Recycle Bin, Offline domain Join, Managed Service Accounts, and the ability khổng lồ use PowerShell cmdlets within a Group Policy Object.

Windows server 2008 R2 extends the capabilities of the Active Directory by creating better management tools, provides for more robust directory replication across a global enterprise, and allows for better scalability and redundancy lớn improve directory operations. Windows server 2008 R2 effectively adds in more reliability, faster performance, và better management tools to a system that can be leveraged as a true enterprise directory provisioning, resource tracking, và resource management tool. Because of the importance of Active Directory lớn the Windows server 2008 R2 operating system, plus the breadth of capabilities that Active Directory can facilitate, six chapters in Part II of this book are dedicated lớn Active Directory.

Windows server 2008 R2 Running Built-in Application hệ thống Functions

As much as many administrators think of Active Directory as one of the key areas to lớn upgrade when a new release of the operating system becomes available, in reality, Active Directory tends khổng lồ not be the first thing updated. Instead, the real business drivers for migrating khổng lồ Windows vps 2008 R2 typically come from the built-in application vps programs that are available on Windows hệ thống 2008 R2.

Windows vps 2008 R2 comes with several programs và utilities khổng lồ provide robust networking capabilities. In addition to the basic file và print capabilities covered earlier in this chapter, Windows hệ thống 2008 R2 can provide name resolution for the network and enable high availability through clustering and fault tolerance, connectivity for smartphone users, web services functions, & dozens of other application vps functions.

When convincing management that an upgrade khổng lồ Windows server 2008 R2 is important, the IT professional needs lớn sift through the technologies built in to Windows server 2008 R2 và pick those services that help an organization use công nghệ to achieve its business initiatives. When planning the implementation of Windows hệ thống 2008 R2, a network architect needs lớn consider which of the vps services are desired, how they will be combined on servers, & how they will be made redundant across multiple servers for business continuity failover.

For a small organization, the choice to combine several hệ thống functions to lớn a single system or lớn just a few systems is one of economics. However, an organization might distribute vps services khổng lồ multiple servers to lớn improve performance (covered in Chapter 34), distribute administration (covered in Chapter 18), create hệ thống redundancy (covered in Chapter 29), create a disaster recovery strategy (covered in Chapter 31, “Recovering from a Disaster”), enable security (covered in Chapter 13), or lớn serve users in other remote site locations of the organization (covered in Chapter 32).

Some of the built-in application vps functions in Windows vps 2008 R2 include the following:

Domain controller—Like in previous versions of the Windows operating system, the tên miền controller enables users khổng lồ authenticate to lớn the domain for access lớn network resources.

Global catalog server—The global catalog hệ thống is a domain controller that also stores a subset of AD DS objects from other domains in the forest. When an internal or external user with appropriate security rights wants to look at a các mục of Active Directory users in the forest, the global catalog hệ thống provides the list.

DNS server—The tên miền name system (DNS) maintains a danh sách of network servers and systems & their associated IP addresses, so a DNS vps provides information about the devices connected to the network.

DHCP server—The Dynamic Host Configuration Protocol (DHCP) assigns IPv4 and/or IPv6 network addresses lớn devices on the network. Windows server 2008 R2 provides the service function khổng lồ facilitate DHCP addresses to network devices.

Cluster server—When fault tolerance is important to lớn an organization, clustering provides failover from one system khổng lồ another. Windows hệ thống 2008 R2 provides the ability to link systems together so that when one system fails, another system takes over.

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Network Policy Server—NPS is the Microsoft implementation of a Remote Authentication Dial-in User Service (RADIUS) server và proxy. NPS performs centralized connection authentication, authorization, và accounting for many types of network access, including wireless và virtual private network (VPN) connections. NPS routes authentication and accounting messages to lớn other RADIUS servers. It also acts as a health evaluation server for Network Access Protection (NAP).

Remote Desktop server—Instead of having a full desktop or máy tính computer for each user on the network, organizations have the option of setting up simple, low-cost thin terminals for users to gain access to network resources. Windows vps 2008 R2 Remote Desktop Services allows a single vps to host network system access for dozens of users.

Remote access server—When a remote user has a desktop or máy tính xách tay system và needs access to lớn network services, Windows server 2008 R2 provides remote access services that allow the remote systems to establish a secure remote connection.

Web server—As more & more technologies become web-aware và are hosted on website servers, Windows vps 2008 R2 provides the technology to host these applications for browser-based access.

Media server—With information extending beyond text-based word processing documents & spreadsheets into rich media such as đoạn phim and audio, Windows hệ thống 2008 R2 provides a source for hosting & publishing clip and audio content.

Virtualization server—Windows vps 2008 R2 provides the core capabilities to bởi server virtualization, providing the capability for an organization to lớn consolidate physical servers into fewer host hệ thống systems, thus decreasing the total cost of IT operations.

Distributed file System (DFS) server—For the past decade, data files have been stored on tệp tin servers all around an organization. Windows vps 2008 R2 provides Distributed file Systems that allow an organization to take control of distributed files into a common unified namespace.

These plus several other functions provide robust networking services that help organizations leverage the Windows hệ thống 2008 R2 technologies into solutions that solve business needs.

Windows vps 2008 R2 Running Add-in Applications server Functions

Although some of the newer, built-in vps application functions in Windows vps 2008 R2—such as Network Policy Server, hệ thống virtualization, Remote Desktop Services website Access, truyền thông Server, và so on—provide key areas for organizations to select as initial areas to lớn implement Windows vps 2008 R2 technologies, other organizations might find add-in applications as being the key areas that drive an initial implementation of Windows vps 2008 R2. Some of the add-in applications come from Microsoft, such as the Microsoft Exchange vps 2010 messaging system or Microsoft SQL vps 2008 database system. Other add-ins to Windows server 2008 R2 are provided by companies that provide human resource management applications; accounting software; document management tools; fax or voicemail add-ins; or other business, industry, or user productivity capabilities.

In earlier Windows hệ thống operating systems, the chip core operating system provided simple logon and network connectivity functions; however, with Windows vps 2008 R2, the operating system includes many core capabilities built in lớn the Windows vps 2008 R2 operating environment. With integrated fault tolerance, data recovery, vps security, remote access connectivity, website access technologies, & similar capabilities, organizations creating add-ins to lớn Windows server 2008 R2 can focus on business functions & capabilities, not on bộ vi xử lý core infrastructure reliability, security, & mobile access functionality. This off-loading of the requirement of third-party add-in organizations lớn implement basic networking technologies into their applications enables these developers to lớn focus on improving the business productivity and functionality of their applications. Additionally, consolidating information routing, security, remote management, và so on into the vi xử lý core operating system provides a common method of communication, authentication, and access to users without having to lớn load up special drivers, add-ins, or tools to support each và every new application.

Much of the shift from application-focused infrastructure components to vi xử lý core operating system-focused functionality was built in to Windows 2000 and then later enhanced in Windows 2003 and Windows hệ thống 2008. There were many challenges to lớn earlier versions of the Windows operating system; however, after being on the market for many years now, Windows vps 2008 R2 add-ins have had several revisions to work through system functionality & component reliability between application và operating system. Fortunately, Windows server 2008 R2 uses the same application/operating system technology used in Windows 2003 and Windows hệ thống 2008, so applications written for Windows 2003 & Windows hệ thống 2008 typically need just a simple service pack update to be able to lớn run on Windows vps 2008 R2, if anything at all.

Summary

This introductory chapter was intended lớn highlight the new features, functions, migration tools, and management utilities in Windows vps 2008 R2 that will help administrators take advantage of the capabilities of the new operating system. If Windows vps 2008 R2 is seen as just a simple upgrade khổng lồ Windows 2000/2003/2008, an organization will not benefit from the operating system enhancements. However, when fully leveraged with the capabilities of the Windows server 2008 R2 operating system, an organization can improve services khổng lồ its employees through the use of new tools và technologies built in lớn the operating system.

Because Windows server 2008 R2 is a relatively simple migration from existing Windows 2003 and Windows 2008 Active Directory environments, and Windows hệ thống 2008 R2 application servers can be added khổng lồ existing Active Directory 2000/2003/2008 domains, the migration process really is one where the IT administrators need lớn prioritize which Windows server 2008 R2 services to install or migrate khổng lồ first, và to then plan và test the new technologies to lớn make sure they improve IT services lớn the organization.


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