Configuring HP DCE Cells

Configuring Cells Using dce_config

•dce_config_env: Sets common environment variables used by dce_config.

•dce_config_utils: Common internal routines used by dce_config.

•/sbin/init.d/dce[start stop]: Starts or stops HP DCE daemons. Cannot be run remotely; must be run on DCE client or server node.

•/etc/rc.config.d/dce: Read by /sbin/init.d/dce to determine which daemons to start.

dce_config Environment Variables

dce_config recognizes the following environment variables. If these environment variables are set and exported before dce_config is run in interactive mode, possible corresponding prompts for information will be skipped.

•REMOTE_ADMIN: If you set the variable REMOTE_ADMIN to y (using a command such as “export REMOTE_ADMIN=y”) before you run dce_config or dcm on an HP DCE 1.7 system, then dced is started with the command dced -b-rand /etc/rc.config.d/dce is updated to include DCED_SWITCHES= -r. You can also set REMOTE_ADMIN in the config.env file if you run dce_config non- interactively.

•CACHE_CDS_SERVER: Name of a CDS server in cell to cache. Need not be the initial CDS Server.

•CACHE_CDS_SERVER_IP: IP address of $CACHE_CDS_SERVER.

•CELL_ADMIN: Principal name of the Cell Administrator; either for an existing cell or for a to-be-configured cell.

•CELL_ADMIN_PW: Password for the Cell Administrator, either for an existing cell or for a to-be-configured cell.

•CELL_NAME: Name of your cell (without /…/).

•CHANGE_PW: This internal variable tracks whether dce_config receives the warning “Password must be changed” to indicate the cell administrator password is the same as the default password. Initial value is n; do not alter this initial value.

Planning and Configuring HP DCE 1.7

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HP UX DCE Software manual Dceconfig Environment Variables
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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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