DCE/RPC

DCE/RPC, short for "Distributed Computing Environment / Remote Procedure Calls", is the remote procedure call system developed for the Distributed Computing Environment (DCE). This system allows programmers to write distributed software as if it were all working on the same computer, without having to worry about the underlying network code.

History

DCE/RPC was commissioned by the Open Software Foundation in a "Request for Technology" (1993 David Chappell).^[when?] One of the key companies that contributed was Apollo Computer, who brought in NCA - "Network Computing Architecture" which became Network Computing System (NCS) and then a major part of DCE/RPC itself. The naming convention for transports that can be designed (as architectural plugins) and then made available to DCE/RPC echoes these origins, e.g. ncacn_np (SMB Named Pipes transport); ncacn_tcp (DCE/RPC over TCP/IP) and ncacn_http to name a small number.

DCE/RPC's history is such that it's sometimes cited as an example of design by committee. It is also frequently noted for its complexity, however this complexity is often a result of features that target large distributed systems and which are often unmatched by more recent RPC implementations such as SOAP.

Software License

Previously, the DCE source was only available under a proprietary license. As of January 12, 2005, it is available under a recognized open source license (LGPL) permits a broader community to work on the source to expand its features and keep it current. The source may be downloaded over the web. The release consists of about 100 ".tar.gz" files that take up 170 Megabytes. (Note that they include the PostScript of all the documentation, for example.)

The Open Group has stated it will work with the DCE community to make DCE available to the open source development community, as well as continuing to offer the source through The Open Group’s web site.^[1]

DCE/RPC's reference implementation (version 1.1) was previously available under the BSD-compatible (Free Software) OSF/1.0 license, and is still available for at least Solaris, AIX and VMS.

DCE is also still available under the previous non open-source license terms from the Open Group website.

Uses

It was used in the UK's National Insurance Recording System (NIRS/2).^[2]

It is used in Pennsylvania State University's student information portal, eLion.

It is used by the older version of HP Openview Operations for Unix/Windows Agents. HP Openview Operations is the largest selling systems and applications management product.

It is used by Microsoft Exchange/Outlook.

It is used by Call of Duty: Modern Warfare 2 for Multiplayer lobbies, making small clouds to decide on a host or lobby migration.^{[citation needed]}

Alternate versions and implementations

• FreeDCE is the DCE 1.1 reference implementation ported to Linux, supports 64-bit platforms, and is autoconf'd to make porting to further platforms much easier: a Win32 port is underway.

• Entegrity Solutions licensed the OSF's entire DCE 1.2.2 source code and ported it to Win32, creating a product called PC/DCE - see http://support.entegrity.com/private/pcdce32.asp

• Microsoft's version of DCE/RPC, called "MSRPC", is integrated into Windows NT. MSRPC is derived from the DCE 1.1 reference implementation.

• Samba contains an implementation of MSRPC that is intended to be network-interoperable and IDL-interoperable with MSRPC. It is not binary-interoperable with MSRPC.

• The Wine Project contains an implementation of MSRPC that is intended to be binary-interoperable and IDL-interoperable with MSRPC. It is not network-interoperable with MSRPC.

• In 2008, Likewise Software released an implementation of the DCE 1.1 reference.

• J-Interop is a working MSRPC implementation in Java. This library can be used on any Non-Windows platform and without using Java Native Interface (JNI) to provide COM access. It is currently used by OpenNMS for retrieving WMI data for system monitoring.

• Jarapac - DCE/RPC in Java

Books

"DCE/RPC over SMB: Samba and Windows NT Domain Internals" by Luke Kenneth Casson Leighton ISBN 1578701503

References

1. ^ [1]
2. ^ The Open Group, CASE STUDY : NIRS2, Winter 1996

External links

• DCE/RPC 1.2.2 source from The Open Group, released under the LGPL
• DCE/RPC 1.2.2 source released under the old license

This computer networking article is a stub. You can help Wikipedia by expanding it.v · Categories: Network protocols Remote procedure call Computer network stubs Wikimedia Foundation. 2010. Игры ⚽ Поможем решить контрольную работу Liberator (arcade game) Birlinn Look at other dictionaries: DCE RPC — abbr. Distributed Computing Environment / Remote Procedure Call (DCE, RPC) Syn: DCERPC DCE/RPC …   United dictionary of abbreviations and acronyms DCE/RPC — abbr. Distributed Computing Environment / Remote Procedure Call (DCE, RPC) Syn: DCE RPC DCERPC …   United dictionary of abbreviations and acronyms DCE/RPC — Distributed Computing Environment / Remote Procedure Call …   Acronyms DCE/RPC — Distributed Computing Environment / Remote Procedure Call …   Acronyms von A bis Z DCE Remote Procedure Call — Saltar a navegación, búsqueda DCE Remote Procedure Call o bien DCE RPC es un sistema de llamada a procedimiento remoto del conjunto de software OSF DCE.[1] DCE RPC no debe confundirse con DCE el cual es un conjunto de servicios que incluye DCE… …   Wikipedia Español DCE Distributed File System — Saltar a navegación, búsqueda DCE Distributed File System o DCE DFS[1] es un protocolo de nivel de aplicación, según el Modelo OSI. Es utilizado para sistemas de archivos distribuido de DCE en un entorno de red de computadoras de área local.… …   Wikipedia Español RPC — can refer to:Organizations* Revolutionary Policy Committee, a faction within UK Independent Labour Party during the 1930s. * Rail Passengers Council, a network established by the Parliament of the United Kingdom to protect and promote the… …   Wikipedia RPC — Para el Estado socialista de China continental, véase República Popular China. El RPC (del inglés Remote Procedure Call, Llamada a Procedimiento Remoto) es un protocolo que permite a un programa de ordenador ejecutar código en otra máquina remota …   Wikipedia Español DCE Distributed File System — Not to be confused with Distributed File System (Microsoft). The DCE Distributed File System (DCE/DFS)[1] is the remote file access protocol used with the Distributed Computing Environment. It was based on the AFS Version 3.0 protocol that was… …   Wikipedia Microsoft RPC — (Microsoft Remote Procedure Call) is a modified version of DCE/RPC. Additions include support for Unicode strings, implicit handles, inheritance of interfaces (which are extensively used in DCOM), and complex calculations in the variable length… …   Wikipedia 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”