About HP DCE/9000 Version 1.7

Interoperability and Compatibility

Neither DES nor DES-hidden versions of DCE are interoperable with any DCE version that has been built with the DES code omitted (instead of hidden). Some DCE ports from other vendors were built in this way in order to meet U.S. export requirements. If you are running a DCE port from another vendor, check with that vendor for details.

Kerberos Authentication Protocol

Compatibility

The DCE Security authentication service implements Kerberos Version

5.DCE Security does not provide backward compatibility support for Kerberos Version 4.

DCE Support for Kerberos Applications and Configuration Notes

HP DCE 1.7 makes available enhanced configuration features specific to Kerberos Version 5. Configuration with dce_config has been updated to do the following for either a security server or client:

Create a host principal, account and keytab entry for secure BSD remote utilities.

Create the file /etc/krb5.conf for use by Kerberos V5 Beta 5-7 and Release 1.0 applications.

Create the file /krb5/krb.realms for Kerberos V5 B4 applications.

Add the entries klogin, kshell, ekshell, and eklogin as well as kerberos5 and kerberos-secto /etc/services.

Link the /etc/krb5.keytab file, which is the default keytab used by Kerberos V5 Release 1.0 clients, to the /krb5/v5srvtab file, which is the default keytab used by DCE clients. The file /etc/v5srvtab, which is the default keytab file used by Kerberos V5 Beta clients, is also linked to the /krb5/srvtab file.

The host principal uses a fully qualified host name. To construct this name, dce_config appends the Internet domain name to the host name in the format: host_name.domain_name. For example, when the domain name is ch.hp.com, and the host name is fred, the fully qualified host name is fred.ch.hp.com.

Planning and Configuring HP DCE 1.7

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HP UX DCE Software manual Kerberos Authentication Protocol Compatibility

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.