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l companies like Red Hat will make money by charging for services. Therefore <BR>, commercial support services for Linux will be fee-based and will likely be <BR> priced at a premium. These costs have to be factored into the total cost mo <BR>del. <BR>Linux is a UNIX-like operating system and is therefore complex to configure <BR>and manage. Existing UNIX users may find the transition to Linux easier but <BR>administrators for existing Windows?-based or Novell environments will find <BR>it more difficult to handle the complexity of Linux. This retraining will ad <BR>d significant costs to Linux deployments. <BR>Linux is a higher risk option than Windows NT. For example how many certifie <BR>d engineers are there for Linux? How easy is it to find skilled development <BR>and support people for Linux? Who performs end-to-end testing for Linux-base <BR>d solutions? These factors and more need to be taken into account when choos <BR>ing a platform for your business. <BR>Myth: Linux is more secure than Windows NT <BR>---------------------------------------------------------------------------- <BR>---- <BR>Reality: Linux Security Model Is Weak <BR>All systems are vulnerable to security issues, however it's important to not <BR>e that Linux uses the same security model as the original UNIX implementatio <BR>ns--a model that was not designed from the ground up to be secure. <BR>Linux only provides access controls for files and directories. In contrast, <BR>every object in Windows NT, from files to operating system data structures, <BR>has an access control list and its use can be regulated as appropriate. <BR>Linux security is all-or-nothing. Administrators cannot delegate administrat <BR>ive privileges: a user who needs any administrative capability must be made <BR>a full administrator, which compromises best security practices. In contrast <BR>, Windows NT allows an administrator to delegate privileges at an exceptiona <BR>lly fine-grained level. <BR>Linux has not supported key security accreditation standards. Every member o <BR>f the Windows NT family since Windows NT 3.5 has been evaluated at either a <BR>C2 level under the U.S. Government's evaluation process or at a C2-equivalen <BR>t level under the British Government's ITSEC process. In contrast, no Linux <BR>products are listed on the U.S. Government's evaluated product list. <BR>Linux system administrators must spend huge amounts of time understanding th <BR>e latest Linux bugs and determining what to do about them. This is made comp <BR>lex due to the fact that there isn't a central location for security issues <BR>to be reported and fixed. In contrast Microsoft provides a single security r <BR>epository for notification and fixes of security related issues. <BR>Configuring Linux security requires an administrator to be an expert in the <BR>intricacies of the operating system and how components interact. Misconfigur <BR>e any part of the operating system and the system could be vulnerable to att <BR>ack. Windows NT security is easy to set up and administer with tools such as <BR> the Security Configuration Editor. <BR>Myth: Linux can replace Windows on the desktop <BR>---------------------------------------------------------------------------- <BR>---- <BR>Reality: Linux Makes No Sense at the Desktop <BR>Linux as a desktop operating system makes no sense. A user would end up with <BR> a system that has fewer applications, is more complex to use and manage, an <BR>d is less intuitive. <BR>Linux does not provide support for the broad range of hardware in use today; <BR> Windows NT 4.0 currently supports over 39,000 systems and devices on the Ha <BR>rdware Compatibility List. Linux does not support important ease-of-use tech <BR>nologies such as Plug and Play, USB, and Power Management <BR>The complexity of the Linux operating system and cumbersome nature of the ex <BR>isting GUIs would make retraining end-users a huge undertaking and would add <BR> significant cost <BR>Linux application support is very limited, meaning that customers end up hav <BR>ing to build their own horizontal and vertical applications. A recent report <BR> from Forrester Research highlighted the fact that today 93 percent of enter <BR>prise ISVs develop applications for Windows NT, while only 13 percent develo <BR>p for Linux.3 <BR>Summary <BR>The Linux operating system is not suitable for mainstream usage by business <BR>or home users. Today with Windows NT 4.0, customers can be confident in deli <BR>vering applications that are scalable, secure, and reliable--yet cost effect <BR>ive to deploy and manage. Linux clearly has a long way to go to be competiti <BR>ve with Windows NT 4.0. With the release of the Windows 2000 operating syste <BR>m, Microsoft extends the technical superiority of the platform even further <BR>ensuring that customers can deliver the next generation applications to solv <BR>e their business challenges. <BR>More information <BR>Customer Testimonials <BR>See how these leading companies and organizations have deployed Windows NT S <BR>erver 4.0: <BR>Nasdaq <BR>Barnes & Noble <BR>Dell Computer Corp <BR>The Boeing Company <BR>Chicago Stock Exchange <BR>Performance Data <BR>See Industry Benchmarks Show Windows NT Server 4.0 Outperforms Linux <BR>Footnotes <BR>1. Siemens & SuSE announced a patch in September 1999 to extend to 4 GB, alt <BR>hough this is not part of the 2.2 Kernel or major distributions. <BR>2. Linux: How Good Is It? D. H. Brown Associates Inc. April 1999 <BR>3. Forrester Research, Software Vendors Crown Server OS Kings, Aug. 31, 1999 <BR> <BR>-- <BR> __ _ <BR> / /(_)_ __ _ ___ __ MrX (LordX) <BR> / / | | '_ \| | | \ \/ / OpenICQ ID: 292109 <BR> / /__| | | | | |_| |> < <BR> \____/_|_| |_|\__,_/_/\_\ <A HREF="mailto:"></A> <A HREF="mailto:LordX@chinaren.com">LordX@chinaren.com</A> <BR> <BR>※ 來源:·BBS 水木清華站 smth.org·[FROM: 166.111.64.190] <BR><CENTER><H1>BBS水木清華站∶精華區</H1></CENTER></BODY></HTML>
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