中英对照windows 2000概述.htm

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      ahead．To help you build your roadmap from Windows NT to Windows 2000，we 
      offer an overview of the key Windows 2000 technologies and 
      services[3]．These advances are detailed in the sections that 
      follow：<BR><BR>&#8226; Active Directory<BR><BR>&#8226; Security<BR><BR>&#8226; 
      Storage<BR><BR>&#8226; Networking<BR><BR>&#8226; Enterprise Management<BR><BR>1．Active 
      Directory<BR><BR><BR><BR>Can you effectively manage every resource in your 
      network with a single logon[4]？Do your users have a meaningful view of 
      these resources？Was it easy for you to build a large，complex，international 
      network with Windows NT？If you’re bound by the limits of down-level（NT 
      3．x-4．0）networks，your answer is probably no—at least not without some 
      headaches[5]．<BR><BR>Microsoft networks that are built with Active 
      Directory can help you when you meet these challenges．Unlike down-level 
      directory services，which are flat，Active Directory is 
      hierarchical[6]．Active Directory stores each of your company’s resources 
      logically，forming a Tree structures[6] that mirrors your enterprise．Every 
      resource in even the largest networks is easy to find and 
      manage．<BR><BR>2．Security<BR><BR><BR><BR>The cornerstone of Windows 2000 
      security is Active Directory．Its support for granular access 
      control，inheritance，and delegation of administrative task gives you the 
      flexibility to secure resources without compromising your network’s 
      purpose[7]．Fine-granted access control is not offered in NT 3．x or 
      4．0．This often torces you to assign permissions that give either too 
      little or too much control[8]．Although Active Directory should be a 
      significant piece of Windows 2000 security strategy，it can not deliver 
      complete enterprise security by 
      itself．<BR><BR>3．Storage<BR><BR><BR><BR>The Encrypting File 
      System（EFS）would not be possible without extensions to NTFS[9]．New 
      Technology File System（NTFS）5．0 is the foundation for several enhancement 
      in Windows 2000．Sharing and managing your company’s data is top 
      priority．You must gain complete control of storage to be a successful 
      administrator．<BR><BR>4．Networking<BR><BR><BR><BR>Storage innovations give 
      you improved tools to manage and share resources．The improvements to 
      networking in Windows 2000 are equally groundbreaking．For example，you have 
      the opportunity in Windows 2000 to remove all NetBIOS traffic from your 
      network．The Dynamic Domain Name System（DDNS）can entirely eliminate your 
      dependence on NetBIOS and WINS．Also，you can now build more secure Virtual 
      Private Networks（VPNs）that leverage PK cryptography[10]．Further，support 
      for Quality of Service（QoS）一a policy-based bandwidth management 
      technology—is added．Some of the topics covered in this section are new in 
      Windows 2000，others represent improvement to existing 
      technologies．<BR><BR>5．Enterprise Management<BR><BR><BR><BR>Along with its 
      advances in directory management，security，public key 
      crypto-graphy，storage，and networking，Windows 2000 includes improvement in 
      enterprise management．Total Cost of Ownership（TCO）is a leading concern 
      shared by many companies．After you deploy a particular technology，a TCO 
      study will consider the cost of maintaining（or owning）[11]．In corporate 
      networks，most TCO efforts are aimed at reducing the expense of managing 
      desktops[12]．<BR><BR><BR><BR>随着每次Windows新版本的发行，微软公司都会带来一些创新技术，用来构建更为有用的、可管理的、可扩缩的网络。Windows 
      2000（前称Windows NT 5. 0）也不例外。事实上，这是一个至今为止最具创新性的版本。Windows 
      2000操作系统的产品系列共有以下4个独立的产品。<BR><BR>Windows 2000专业版：替代Windows NT 4. 
      0工作站，是微软桌面操作系统的旗舰产品。<BR><BR>Windows 2000服务器版：替代Windows NT 4. 
      0服务器的新产品，从先前支持双路对称多处理器的NT 4. 0服务器升级为支持四路对称多处理器技术。<BR><BR>Windows 
      2000高级服务器版：Windows NT 4. 0服务器企业版的替代产品。新产品支持四路对称多处理器。从先前的NT 4. 
      0服务器企业版升级后，支持八路对称多处理器。如它的前身一样，这个版本支持大物理内存、群集和负载均衡。<BR><BR>Windows 
      2000数据中心服务器版：这是微软提供的新品。它支持十六路对称多处理器，最大达64GB的物理内存、群集和负载均衡。<BR><BR>上述这些产品都带有关键技术，这些技术改变了人们计划、设计和布置微软网络的方式。为了使用如活动目录、动态域名系统、智能镜像等开创性的特性，应该使计划更具前瞻性。为了帮助用户设计从NT迁移到Windows 
      2000的方案，本文对Windows 2000的关键技术和服务做一些概要性的介绍。详细介绍Windows 
      2000的优点：活动目录、安全性、存储、联网和企业管理。<BR><BR>1．活动目录<BR><BR>你能通过单一登录有效地管理网络里的每一种资源么？用户都能观察到这些资源的意义么？用NT构建一个大而复杂的国际网络容易么？假如你受限于低版本的NT（3. 
      x ~ 4. 
      0）网络，那么答案很可能是“不”——至少有些头疼吧？<BR><BR>用活动目录构建微软的网络，能帮助你接受这些挑战。与以前低级目录服务（它们是平面的）不同，而活动目录是分层次结构的。活动目录逻辑上存储了公司中的每一资源，形成树状结构来反映公司。即使在最大的网络里，任何资源都容易找到和管理。<BR><BR>2．安全性<BR><BR>Windows 
      2000安全性的基石是活动目录。它支持粒度访问控制、继承性和可管理任务的委派，所有的这些都让用户以足够的灵活性去保障资源安全而不造成网络泄密。NT3. 
      x或者NT 4．0并没有提供比较好的访问控制，这迫使你分配的权限不是太多就是太少。虽然，活动目录算是Windows 
      2000安全策略里的重要部分，但它自身并没有提供完整的企业安全性。<BR><BR>3．存储<BR><BR>没有NTFS的扩展是不可能实现加密文件系统的。NTFS 
      5．0是一些Windows 
      2000增强功能的基础共享和管理公司的数据的优先级最高。作为一个成功的系统管理员，你必须具有完整的存储控制权。<BR><BR>4．联网<BR><BR>存储方面的创新，为你提供了用来管理和共享资源的更好手段。Windows 
      2000联网方面的改进同样具有开创性。例如，在Windows 
      2000中，你有条件消除网络里的所有NetBIOS通信量。动态域名系统彻底消除了对NetBIOS和WINS的依赖。另外，还可以构建更加安全的虚拟专用网（VPN），它影响到公钥密码技术。还有，增加了对服务质量（QoS）的支持—一一个基于策略的带宽管理技术。这里讨论的一些技术在Windows 
      2000里是全新的，其他则是对现有技术的改进。<BR><BR>5．企业管理<BR><BR>随着目录管理、安全性、公钥密码技术、存储和联网技术的发展，Windows 
      2000也增加了对企业管理的改进。总拥有成本（TCO）是许多公司共同关心的头等大事。在布署一项技术后，TCO的研究要考虑维护（或拥有）成本。在企业网络中，致力于TCO的目标大多是减少桌面管理的费用。<BR><BR></DIV></TD></TR></TBODY></TABLE>
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