About HP DCE/9000 Version 1.7

HP DCE/9000 Core Services Software

Common Desktop Environment (CDE) and

Online Help

As of HP-UX 10.20 and later releases, the default environment is the Common Desktop Environment (CDE). (HP VUE was available with releases of HP-UX earlier than 10.30.) All HP DCE 1.7 online help and context-sensitive help works in CDE. If you print HP DCE 1.7 online help and context-sensitive help from CDE, the text is not formatted as it is on the screen; only text is printed (graphics are not printed).

DES and DES-Hidden Versions of this Release

The DCE Security component uses the Data Encryption Standard (DES) algorithm as its default encryption algorithm. Because the United States State Department restricts the export of DES software, HP supplies three binary versions of the dced daemon and the DCE library (libdce.1, libdce.2, and libdce.a):

• The U.S./Canada version is available only to HP customers in the United States and Canada. The U.S./Canada version of libdce supports use of DES to encrypt RPC argument values, via the “privacy” authentication level, and the use of DES to encrypt gssapi messages, via the gss_seal “confidentiality requested” flag. The U.S./Canada version of dced supports secure remote key table management.

• The Export version is available to all HP customers. The Export version of libdce disables the “privacy” authentication level in RPC, the gss_seal “confidentiality requested” flag, and all program entry points to DES routines. The Export version of dced does not support secure remote key table management.

 

If an application uses the Export version of the DCE library and specifies

 

the “privacy” level or “confidentiality requested”, the library returns an

 

error at run time. This restriction does not apply to the U.S./Canada

 

version of this release.

 

See the dced (1M) man page for more information about remote key table

 

management support in the two versions of the daemon.

 

Users of the Export version of HP DCE 1.7 should start dced with the -c

NOTE

 

option. See the dced man page for more information.

 

 

Planning and Configuring HP DCE 1.7

1-7

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HP UX DCE Software manual Common Desktop Environment CDE Online Help, DES and DES-Hidden Versions of this Release
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UX DCE Software specifications

HP UX DCE Software, or Hewlett-Packard UNIX Distributed Computing Environment, represents a significant tool in the realm of distributed system architecture. Designed primarily for enterprise environments, HP UX DCE enhances the reliability, scalability, and manageability of applications over diverse networked systems.

One of the main features of HP UX DCE is its ability to integrate various computing platforms, enabling seamless communication and resource sharing across distributed nodes. This facilitates the creation of complex applications that can operate on a multitude of systems, thus enhancing operational flexibility. DCE employs standardized interfaces, which means applications written for one platform can run on any other platform that supports DCE, promoting cross-platform compatibility.

In terms of technologies, HP UX DCE utilizes Remote Procedure Calls (RPC) as a core feature. This mechanism allows different applications to communicate and invoke procedures on remote systems as if they were local calls. Additionally, DCE includes a robust security model that incorporates Kerberos for authentication, ensuring that communication between nodes remains secure and protected against unauthorized access.

Another significant characteristic of HP UX DCE is its distributed file system, which allows for transparent file access across different machines. The DCE File System (DFS) provides a unified namespace and manages data replication and consistency across distributed storage resources. This reduces the complexity of data management and enhances data availability.

HP UX DCE also supports a variety of programming languages, making it accessible for developers accustomed to different coding environments. This versatility encourages widespread adoption and innovation, as developers can leverage existing skills to create distributed applications.

Furthermore, HP UX DCE is built for high availability, ensuring that critical applications remain responsive even in the face of hardware or network failures. Its inherent component redundancy and fault-tolerant architecture are designed to minimize downtime, which is essential for mission-critical applications in enterprise scenarios.

In conclusion, HP UX DCE Software provides a comprehensive framework for developing, deploying, and managing distributed applications. Its core features such as RPC support, a secure authentication mechanism, a robust file system, and cross-platform compatibility make it a vital resource for organizations aiming to leverage distributed computing effectively. As enterprises evolve, HP UX DCE stands out as an influential solution in the dynamic landscape of distributed environments.
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