Editing Windows Server 2003 (section)

==Editions==
Windows Server 2003 comes in a number of editions, each targeted towards a particular size and type of business.<ref name="compare">{{cite web|url=http://www.microsoft.com/hk/server/windowsserver2003/evaluation/features/default.mspx|title=Compare the Editions of Windows Server 2003|publisher=Microsoft|archive-date=19 April 2012|archive-url=https://web.archive.org/web/20120419041606/http://www.microsoft.com/hk/server/windowsserver2003/evaluation/features/default.mspx}}</ref><ref>{{cite book |last1=Holme |first1=Dan |last2=Thomas |first2=Orin |title=Managing and maintaining a Microsoft Windows Server 2003 environment |year=2004 |publisher=[[Microsoft Press]] |location=[[Redmond, WA]] |isbn=0-7356-1437-7 |pages=[https://archive.org/details/mcsaselfpacedtra00micr/page/1 1–5<!--This is a page number of a single page!-->] |chapter=1: Introducing Microsoft Windows Server 2003 |url=https://archive.org/details/mcsaselfpacedtra00micr/page/1 }}</ref> In general, all variants of Windows Server 2003 have the ability to share files and printers, act as an application server, host message queues, provide email services, authenticate users, act as an [[X.509]] certificate server, provide [[LDAP]] directory services, serve [[streaming media]], and to perform other server-oriented functions.<ref>{{Cite web |last=BetaFred |title=Costruire una rete wireless locale sicura con Windows Server 2003 Certificate Services |url=https://learn.microsoft.com/it-it/security-updates/security/20200850 |access-date=2023-01-14 |website=learn.microsoft.com |date=22 November 2018 |language=it-it}}</ref><ref>{{Cite web |title=Enable LDAP over SSL (LDAPS) on Windows Sever 2003 Domain Controller |url=https://www.mysysadmintips.com/windows/servers/190-enable-ldap-over-ssl-ldaps-on-windows-sever-2003-domain-controller |access-date=2023-01-14 |website=www.mysysadmintips.com|date=15 December 2011 }}</ref><ref>{{Cite web |last=Mosley |first=Dion |date=2022-12-23 |title=Streaming Media Server – Managing Security Windows Server 2003 |url=https://www.serverbrain.org/managing-security-2003/streaming-media-server.html |access-date=2023-01-14 |website=Windows Server Brain |language=en}}</ref><ref>{{Cite web |title=Install and Configure the Email Server in Windows Server 2003 |url=http://www.it-notebook.org/uncategorized/article/email_server_win_2003.htm |access-date=2023-01-14 |website=www.it-notebook.org}}</ref>

{| class="wikitable" style="margin:auto; text-align:center"
|+ Supported hardware capabilities across editions of Windows Server 2003<ref name="memlimit2" />
|-
! colspan=2 | Criteria !! Web !! Standard !! Enterprise !! Datacenter
|-
| colspan=2 | Maximum physical CPUs || 2 || 4 || 8 || 64
|-
| rowspan=3 | Maximum RAM
|  IA-32 x86 || {{nowrap|2 GB}} || {{nowrap|4 GB}} || colspan="2" | {{nowrap|64 GB}}
|-
| x64 || {{N/A}} || {{nowrap|32 GB}} || colspan="2" | {{nowrap|1 TB}}
|-
| IA-64 Itanium || {{N/A}} || {{N/A}} || colspan="2" | {{nowrap|2 TB}}
|}

===Web===
Windows Server 2003 Web is meant for building and hosting Web applications, Web pages, and XML [[web service]]s. It is designed to be used primarily as an [[Internet Information Services|IIS]] web server<ref name="Srv03WebCALS">{{cite web|url=http://www.microsoft.com/windowsserver2003/howtobuy/licensing/webedition.mspx |title=Licensing Windows Server 2003, Web Edition |publisher=Microsoft.com |access-date=November 22, 2011}}</ref> and provides a platform for developing and deploying XML Web services and applications that use [[ASP.NET]] technology. Domain controller and Terminal Services functionality are not included on Web Edition. However, Remote Desktop for Administration is available. Only 10 concurrent file-sharing connections are allowed at any moment.{{Citation needed|date=January 2023}} It is not possible to install Microsoft SQL Server and Microsoft Exchange software in this edition without installing Service Pack 1{{Citation needed|date=January 2023}}. Despite supporting XML Web services and ASP.NET, [[UDDI]] cannot be deployed on Windows Server 2003 Web{{Citation needed|date=January 2023}}. The .NET Framework version 2.0 is not included with Windows Server 2003 Web, but can be installed as a separate update from Windows Update.{{Citation needed|date=January 2023}}

Windows Server 2003 Web supports a maximum of two physical processors and a maximum of 2&nbsp;GB of RAM.<ref name="memlimit2" /> It is the only edition of Windows Server 2003 that does not require any [[client access license]] (CAL) when used as the internet facing server front-end for [[Internet Information Services]] and [[Windows Server Update Services]]. When using it for storage or as a back-end with another remote server as the front-end, CALs may still be required.<ref name="Srv03WebCALS"/>{{Clarify|date=March 2011}}

===Standard===

Microsoft Windows Server 2003 Standard is aimed towards small to medium-sized businesses. Standard Edition supports file and printer sharing, offers secure Internet connectivity, and allows centralized desktop application deployment. A specialized variant for the [[x64]] architecture was released in April 2005.<ref>{{cite press release
 |url=http://news.microsoft.com/2005/04/25/microsoft-raises-the-speed-limit-with-the-availability-of-64-bit-editions-of-windows-server-2003-and-windows-xp-professional/
 |title=Microsoft Raises the Speed Limit with the Availability of 64-Bit Editions of Windows Server 2003 and Windows XP Professional
 |publisher=Microsoft
 |date=April 25, 2005
 |access-date=September 10, 2015
}}</ref> The IA-32 variants supports up to four physical processors and up to 4&nbsp;GB RAM;<ref name="memlimit2" /> the x64 variant is capable of addressing up to 32&nbsp;GB of RAM<ref name="memlimit2" /> and also supports [[Non-Uniform Memory Access]].

===Enterprise===
Windows Server 2003 Enterprise is aimed towards medium to large businesses. It is a full-function server operating system that supports up to 8 physical processors and provides enterprise-class features such as eight-node [[cluster (computing)|clustering]] using [[Microsoft Cluster Server]] (MSCS) software and support for up to 64 [[Gigabyte|GB]] of [[Random Access Memory|RAM]] through [[Physical Address Extension|PAE]].<ref name="memlimit2" /> Enterprise Edition also comes in specialized variants for the x64 and Itanium architectures. With Service Pack 2 installed, the x64 and Itanium variants are capable of addressing up to 1&nbsp;TB and 2&nbsp;TB of RAM,<ref name="memlimit2" /> respectively. This edition also supports [[Non-Uniform Memory Access]] (NUMA). It also provides the ability to hot-add supported hardware. Windows Server 2003 Enterprise is also the required edition to issue custom certificate templates.{{Citation needed|date=January 2023}}

===Datacenter===
Windows Server 2003 Datacenter is designed<ref>{{cite web|url=http://www.microsoft.com/windowsserver2003/evaluation/overview/datacenter.mspx |title=Microsoft documentation for Windows Server 2003, Datacenter Edition |publisher=Microsoft.com |access-date=November 22, 2011}}</ref> for infrastructures demanding high security and reliability. Windows Server 2003 is available for IA-32, Itanium, and x64 processors. It supports a maximum of 32 physical processors on IA-32 platform or 64 physical processors on x64 and IA-64 hardware. IA-32 variants of this edition support up to 64&nbsp;GB of RAM.<ref name="memlimit2" /> With Service Pack 2 installed, the x64 variants support up to 1&nbsp;TB while the IA-64 variants support up to 2&nbsp;TB of RAM.<ref name="memlimit2">{{cite web|url=http://msdn.microsoft.com/en-us/library/aa366778(v=vs.85).aspx |title=Memory Limits for Windows Releases |publisher=Msdn.microsoft.com |access-date=November 22, 2011}}</ref> Windows Server 2003 Datacenter also allows limiting processor and memory usage on a per-application basis.

This edition has better support for [[storage area network]]s (SANs): It features a service which uses Windows [[winsock|sockets]] to emulate TCP/IP communication over native SAN service providers, thereby allowing a SAN to be accessed over any [[TCP/IP]] channel. With this, any application that can communicate over TCP/IP can use a SAN, without any modification to the application.{{Citation needed|date=January 2023}}

The Datacenter edition, like the Enterprise edition, supports 8-node [[computer cluster|clustering]].{{Citation needed|date=January 2023}} Clustering increases availability and fault tolerance of server installations by distributing and replicating the service among many servers. This edition supports clustering with each cluster having its own dedicated storage, or with all cluster nodes connected to a common SAN.