About HP DCE/9000 Version 1.7

 

HP DCE/9000 Core Services Software

 

At HP DCE 1.7, both libdce and libcma were versioned for

NOTE

 

compatibility reasons. libdce.1 and libcma.1 are the latest patched HP

 

DCE 1.5 libraries. libdce.2 and libcma.2 support HP DCE 1.7 on

 

HP-UX 11.0. Shared applications built on HP DCE 1.6 may have to

 

recompile to run on HP DCE 1.7.

 

Hewlett-Packard strongly recommends the use of shared libraries when

 

 

building DCE applications. In our opinion, the advantages of shared

 

libraries — smaller executable size, reduced memory requirement, and

 

the ability to make use of forthcoming improvements to libdce without

 

rebuilding or relinking binaries — outweigh the modest performance

 

penalty HP has measured when testing a high-volume transaction

 

processing application linked with DCE shared libraries.

 

HP DCE/9000 Features Added by

 

Hewlett-Packard

 

Features Added at Previous Releases of HP DCE

 

HP DCE 1.7 supports the following features that were added to

 

HP DCE/ 9000:

 

• The HP DCE Account Manager (HP DCE 1.4 and later releases)

 

provides a graphical interface for creating and administering the

 

DCE registry. The Account Manager requires a bit-mapped display.

 

There is no ASCII terminal support. Online help is provided for the

 

Account Manager. See “HP DCE Account Manager” later in this

 

chapter for more information on the Account Manager.

 

• The HP DCE Cell Monitor (HP DCE 1.4 and HP DCE1.5 only)

 

provides a graphical display of the status of each node in a DCE cell.

 

• DCM, the DCE Configuration Manager (HP DCE 1.4 and later

 

releases) allows you to configure the nodes in a DCE cell. This tool is

 

accessible via SAM (the HP-UX System Administration Manager)

 

and is documented in online help.

 

• A set of HP-UX Integrated login utilities that authenticate users via

 

the DCE Security Registry instead of via /etc/passwd and

 

/etc/group. HP DCE/9000 includes improvements to login, dtlogin,

 

su, passwd, telnet, and rlogin, as well as new HP-UX Integrated

 

versions of ftpd and dtsession and enhanced support for CDE/PAM.

 

See Chapter 6 for more information about these utilities.

Planning and Configuring HP DCE 1.7

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HP UX DCE Software manual HP DCE/9000 Features Added by, Hewlett-Packard, Features Added at Previous Releases of HP DCE

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.