HP-UX Integrated Login

Integrating DCE with HP-UX Integrated Login

Deciding Whether to Integrate DCE with HP-UX Integrated Login

If you want to configure DCE as the login technology with HP-UX Integrated Login, consider the following:

•The system environment must be stable. Therefore, DCE must be left configured and the DCE cell must be maintained. The network must remain reliable 24 hours a day.

•All users of a system must have a DCE account, including users who are declared in passwd_override.

•All account administration must be done through the DCE registry.

•NIS access is disabled for password and group mapping.

•The system must not be configured with HP-UX Commercial Security.

For a discussion of the Integrated Login support for Commercial Security and how to configure it, see “Notes, Cautions, and Warnings” earlier in this chapter.

Operation of the HP-UX Integrated Login Utilities

The HP-UX Integrated Login utilities function in the same way as their HP-UX counterparts, with the following exceptions:

•Most commands provide additional messages when DCE authentication is unavailable.

•The passwd utility manipulates the DCE registry. It will fail if the DCE network registry cannot be reached. The passwd command synchronously changes the DCE registry, supporting the password generation and password strength checking features provided by HP DCE Version 1.7 servers. However, if DCE is configured as an additional technology, you cannot use passwd to change a DCE password that is required to be generated. You must use dcecp instead.

•User root cannot change account information (such as passwords, finger information, and shell programs) of other users in the DCE Security Registry. The cell administrator must login as cell_admin and use dcecp or the HP-UX Integrated utilities (such as passwd, chfn or chsh) to change other users’ information.

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Planning and Configuring HP DCE 1.7

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HP UX DCE Software manual Operation of the HP-UX Integrated Login Utilities
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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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