About HP DCE/9000 Version 1.7

Limitations of This Release

Limitations of This Release

Some of the limitations described in this section reflect limitations of OSF DCE 1.2.1; others are limitations specific to this release.

Limitations of OSF DCE 1.2.1

Following are limitations of OSF DCE 1.2.1:

The tool passwd_import, which imports user account information from /etc/ passwd files to the Registry database, does not import the passwords themselves. Therefore, after you have used passwd_import to create skeletal DCE accounts in the Registry database, you must use the dcecp tool to add passwords to those accounts. This information is particularly important to customers who plan on using the HP-UX Integrated login tools (login, etc.) with DCE.

Transitive trust path generation and evaluation, as described in sections 33.1.2 and 33.1.4 of the OSF DCE Administration Guide — Core Components is not supported.

Cell alias/rename is partially supported: creation of cell aliases (dcecp cellalias create) is supported; renaming of cells

(dcecp cellalias set) is not supported. Disregard Sections 21.6.2 and 21.6.3 of the OSF DCE Administration Guide — Core Components.

Cell alias names are not automatically propagated across cell boundaries. Use of cell aliases across cell boundaries is supported when the cell alias name is manually registered in the security name space.

HP DCE 1.6 and 1.7 Limitations on OSF DCE 1.2.1 Functionality

The following OSF DCE 1.2.1 functionality is not supported in HP DCE

1.6 or 1.7:

Distributed File Service

Global Directory Service

1-8

Planning and Configuring HP DCE 1.7

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HP UX DCE Software manual Limitations of This Release, Limitations of OSF 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.