About HP DCE/9000 Version 1.7

Notes, Cautions and Warnings Regarding This Release

HP-UX Integrated Login Utilities

Most systems will require the transfer of account information from /etc/passwd to the DCE Security Registry before the system will be useful.

The script /usr/sbin/auth.adm is supplied to activate the integrated login utilities once your system has been set up with the needed accounts. See Chapter 6 for more information about using the /usr/sbin/auth.adm script.

Do not use the auth.adm script to activate the HP-UX Integrated login utilities until after you have set up the accounts necessary for your site in the DCE security service registry.

The DCE Audit Service

The DCE Audit Service was first released with HP DCE 1.4.x; the DCE Audit Service provides auditing capabilities for DCE Security and Time services.

By default, all audit events are disabled (not logged). As part of the default DCE configuration start-up, the DCEAUDITFILTERON environment variable is set. When set, the DCEAUDITFILTERON environment variable specifies that audit event filtering must be utilized to enable logging the desired set of audit events.

To enable auditing, the auditd server process must be started on any system where auditing is desired. As part of the standard DCE configuration start-up for auditd, a set of audit filters is specified for the Security, DTS and auditd server processes. (You can modify these filters as necessary for your site.).

You will need to do some planning to determine the degree of audit proper for your site, and to allow for disk space overhead for your audit logs. If you want to do some auditing, such as logging and tracking modifications to the security registry database, audit filtering is highly recommended. By using audit filtering, it is possible to change the types of events being audited dynamically, without needing to restart the servers for the changes to take effect.

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Planning and Configuring HP DCE 1.7

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HP UX DCE Software manual HP-UX Integrated Login Utilities, DCE Audit Service
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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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