Configuring HP DCE Cells

Configuring Cells Using dce_config

This routine starts up cdsadv and cdsd, initializes the name space, and sets ACLs for all new name space entries.

S:****** Configuring initial CDS Server… S:****** Please wait for user authentication and authorization…

S:****** Checking for active sec_client service...

10.dce_config asks whether it should create a LAN profile for use in dividing clients and servers into profile groups for higher performance in multi-LAN cells. If you choose to have a LAN profile created, dce_config asks for the name of the local LAN. The name you provide is arbitrary, and is used by dce_config to store LAN profile information.

Create LAN profile so clients and servers can be divided into profile groups for higher performance in a multi-lan cell? (n) y

What is the name of the LAN? lan_250

S:****** Starting cdsadv...

S:****** Starting cdsd...

S:****** Creating LAN profile…

S:****** Setting ACLs for all new namespace

entries...

This system is now configured as a CDS server. You must now create a DTS server, either on this system or on another system.

Time servers should be configured in any cell of more than one system. A minimum of three Time servers is recommended for any cell with three or more member systems. See the OSF DCE Administration Guide — Core Services for a discussion of the optimum placement of servers in a cell with gateway or WAN links. DTS servers may be configured on any system in the cell.

When dce_config is first run on a system, the HP-UX environment variable TZ is read to determine the HP-UX local time zone. dce_config then automatically selects a matching DCE local time zone and creates the link for / etc/opt/dce/zoneinfo/localtime. A different time zone can be chosen: see the localtime (5) man page for details.

To configure a DTS server on this system, or on another system:

If the DTS server for this cell will be on another system, repeat steps 1 and 2 on that system, and continue with step 11 below.

If the DTS server will be on this system, continue with step 11 below.

Planning and Configuring HP DCE 1.7

5-11

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HP UX DCE Software manual Configuring Cells Using dceconfig

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.