Configuring HP DCE Cells

 

Configuring Cells Using dce_config

 

Removing Systems from the Cell

 

You cannot use the dce_config UNCONFIGURE option to remove a

NOTE

 

Master Security Server or Initial CDS Server system from a cell. You

 

must either use the DCM to do this, or reconfigure the entire cell. You

 

can use the dce_config UNCONFIGURE option to remove Additional

 

CDS Server or Replica Security Server systems from a cell.

 

To remove a configured system (except a Master Security Server or

 

 

Initial CDS Server system) from a cell, use the -UNCONFIGURE option

 

on the DCE Main Menu. The UNCONFIGURE operation can be

 

executed on any system in the cell. A prompt will ask for the name of the

 

system to be unconfigured. The UNCONFIGURE option removes the

 

target machine from the cell Security database and the CDS name space.

 

After you have unconfigured the system, run dce_config on the system

 

and use the REMOVE option from the DCE Main Menu.

 

DCE daemons must be running on the system executing the

 

UNCONFIGURE option. If daemons have been stopped, use the START

 

option on the DCE Main Menu to restart them before using

 

UNCONFIGURE.

 

A successfully configured client system can be unconfigured locally. If

 

there were any errors in configuring the client system as a security or

 

directory service client, then the client must be unconfigured from some

 

other system in the cell.

 

1. Start dce_config on the client system.

 

2. Select UNCONFIGURE from the DCE Main Menu:

 

DCE Main Menu (on hostname)

 

selection: 4 (UNCONFIGURE)

 

S:****** Attempting to unconfigure a node from the

 

cell name space…

 

3. Enter the host name of the client:

Enter hostname of node to be unconfigured: hostname

4.The system explains that unconfiguring a node will remove the node’s ability to operate in a cell, and asks if you want to continue:

Do you wish to continue (y/n)? y

Planning and Configuring HP DCE 1.7

5-19

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HP UX DCE Software manual Removing Systems from the Cell, Unconfigure
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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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