Notes on Cell Administration

Establishing Intercell Communication

3. Use the dcecp registry connect command:

 

dcecp> registry connect /.../foreign_cell_name \

 

-facct cell_admin \

 

-facctpwforeign_cell_admin_pwd \

 

-group none\

 

-fgroup none\

 

-org none\

 

-forg none\

 

-mypwdlocal_cell_admin_pwd

 

As of HP DCE 1.6, intercell logins by members of trusted cells are

NOTE

 

disabled by default to protect against insecure intercell logins. (This

 

differs from standard OSF DCE 1.1 behavior.) If you want to permit

 

intercell logins, specify one or both of the following options to the dcecp

 

registry connect command:

 

-acctvalid— Marks the local cell account as a valid account. A valid

 

local cell account allows users from the foreign cell to login to nodes in

 

the local cell. The default is invalid.

 

-facctvalid— Marks the foreign cell account as a valid account. A valid

 

foreign cell account allows users from the local cell to log in to nodes in

 

the foreign cell. The default is invalid.

 

For example, to enable peer-to-peer trust between two cells and permit

 

 

intercell logins in both directions between them:

 

dcecp> registry connect /.../foreign_cell_name \

 

-facct cell_admin\

 

-facctpwforeign_cell_admin_pwd \

 

-acctvalid\-facctvalid\-group none\-fgroup none\

 

-fgroup none\

 

-org none\

 

-forg none\

 

-mypwdlocal_cell_admin_pwd

 

See “Creating Trust Relationships” in the OSF DCE Administration

 

Guide — Core Components for detailed information on establishing

 

peer-to- peer trust. See the online version of the dcecp_registry man page

 

for information on the acctvalid and facctvalid options.

Planning and Configuring HP DCE 1.7

7-13

Page 161
Image 161
HP UX DCE Software manual Use the dcecp registry connect command, Registry connect command

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.