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 Release Notes for HP-UX 10.30: HP 9000 Computers > Chapter 7 Other Operating System and Subsystem Changes

Distributed Computing Environment (DCE)
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For 10.30:

HP DCE/9000 V1.6 Client is bundled and delivered with the HP-UX 10.30 core software. The DCE 1.6 Client is basically the same as the DCE 1.5 client (which is bundled with HP-UX 10.20), with the following exceptions:

  • The DFS client software is no longer bundled or available as part of the HP DCE client software. Enhanced DFS client and server for HP-UX 10.20 is available and can be ordered:

    B5516AA

    DCE/9000 Enhanced DFS Client CD-ROM Kit (for Series 700 or 800, includes docs and license to use)

    B5517AA

    DCE/9000 Enhanced DFS Server CD-ROM Kit

    B3786BA

    DCE/9000 Enhanced DFS Server License (for S800) DFS is not yet available on HP-UX 10.30.

  • GDS has been decommissioned at HP-UX 10.30. However, support is maintained for the XDS/XOM libraries.

  • Several header files, manpages, binaries, libraries, and message catalogs have been moved out of the DCE client bundle and can be found in a new DCE product available on the HP-UX 10.30 Application Release Media (part number B6192AA). The filesets that have moved from the DCE client for this product are

    DCE-CoreAdmin
    DCE-CoreTools

  • In addition, a new fileset, DCE-SGUARD, is available as part of the DCE-CoreAdmin product and contains a set of templates and scripts you might find useful when attempting to integrate DCE environments with the HP High Availability product.

  • CMA threads (user-space threads) can co-exist with kernel threads. However, you must choose between kernel threads or CMA threads. These threads cannot be mixed and matched. For more information, refer to the online release note entitled "HP DCE/9000 Version 1.6 Client Software for HP-UX 10.30 Release Note", which you can find in /opt/dec/newconfig/Relnotes/HPDCE1.6RelNotes.text.

  • The library libd4r[.sl.a] is made available for customers requiring support for threaded applications that continue to use the older POSIX "-r" (reentrant) routines, formerly available in libc-r (obsolete at 10.01) and in libc.l (10.10). For more information, refer to the online release note entitled "HP DCE/9000 Version 1.6 Client Software for HP-UX 10.30 Release Note", which you can find in /opt/dec/newconfig/Relnotes/HPDCE1.6RelNotes.text.

  • DCE client is UNIX 95 clean.

  • DCE client supports dates beyond the year 2000.

  • The following additional DCE components are obsoleted:

    DCE Cell Monitor
    DCE Val
    HPCamera

For 10.20 and 10.10:

For 10.20, HP DCE/9000 Version 1.5 client software is included in default HP-UX system software bundles. For 10.10, HP DCE/9000 Version 1.4.1 client software is included in default HP-UX system software bundles.

The functionality ensures that any HP-UX 10.20 and 10.10 system that has installed the default system software bundles can be configured as a DCE client, and as such, will operate with HP/DCE 9000 servers or with DCE servers from another vendor and can run any DCE RPC application.

Also bundled with HP-UX 10.20 and 10.10 is a standalone POSIX Threads library (libcma.sl) that enables developers to use the pthreads API (Application Programmer Interface) without linking against the entire DCE library.

NOTE:

  • HP DCE/9000 runs only on a long-name file system. If you have a short-name file system, you must first run convertfs(1m) to convert your file system to long names.

  • Hewlett-Packard requires use of the ANSI C compiler when building any threaded application (this includes ALL HP DCE applications.) Hewlett-Packard does not provide support for threaded applications that were not compiled using ANSI C.

DCE software included in HP-UX 10.20 and 10.10 is either "default-bundled" (included in one of the standard Series 700 or Series 800 system software bundles) or "optional-bundled" (available on the media and optionally installable). See “Functionality ”, “Default-Bundled Software ”, and “Optional-Bundled Software ” for more information.

Functionality

For 10.30:

No new functionality has been introduced into the HP DCE/9000 Version 1.6 client at 10.30.

For 10.20:

  • HP DCE Measurement Service (DMS) to monitor resource utilization and performance of HP DCE 1.5 servers.

  • Support for large UUIDs.

  • Support for large files APIs; however, there is no support for creating or operating on large files within DFS.

  • Integrated login support for CDE/PAM.

  • Support for context-switching 64-bit machine registers in DCE threads (libcma and libdce).

  • Thread-safe wrapper for the new POSIX 1003.1b calls (waitid, nanosleep, and setrlimit64).

In addition, HP DCE Version 1.5 contains numerous bug fixes.

Impact

For 10.30:

There is no impact to the general (non-DCE) user if they do not recompile. Those who want to recompile and who previously relied on headers/libs that have moved to the HP-UX 10.30 Application Release Media (part number B6192AA), will need to install B6192AA.

For 10.20:

There will be no impact to the general (non-DCE) HP-UX user. Both shared and archived threaded applications will run on both PA1.1 and PA2.0 machines at 10.20 without recompiling.

Compatibility

For 10.30:

HP DCE 1.6 supports binary compatibility with HP DCE Version 1.4/1.4.1 and HP DCE Version 1.5.

For 10.20:

HP DCE 1.5 supports binary compatibility with HP DCE 1.2/1.2.1, HP DCE1.3/1.3.1, and HP DCE 1.4/1.4.1/1.4.2. Applications linked with the archived HP DCE 1.2/1.2.1 or 1.3/1.3.1 libdce are fully compatible with applications built with HP DCE 1.5 libraries. These applications can share login contexts and credentials without loss of data.

Binary compatibility for statically-linked HP DCE 1.2/1.2.1/1.3/1.3.1 applications can be disabled, resulting in minor performance gains and slightly smaller credentials files. By default, binary compatibility is enabled when HP DCE 1.5 is installed and configured. You may disable binary compatibility on a per-host basis with the following command:

   dcecp> hostvar set -secbinarycompat off

To enable binary compatibility after it has been disabled, do the following:

  1. Issue the command

          dcecp> hostvar set -secbinarycompat on

  2. Stop and restart DCE daemons.

  3. If using Integrated Login, log out, and log in.

If statically-linked HP DCE 1.2/1.2.1/1.3/1.3.1 application purges a login context (via sec_login_purge_context) that an HP DCE 1.5 application had created or refresehd, one of the credential files will not be deleted from the disk. This file is located in /var/opt/dce/security/creds. The filename will consist of the unique credential cache id associated with the login context with a data.db suffix. Administrators can manually remove this file.

For information about the U.S./Canada version of HP DCE, see the HP DCE/9000 Version 1.5 U.S./Canada Version Release Note.

Due to the following changes at OSF DCE 1.1, there may be source code incompatibility with previous HP DCE releases. The following changes will impact user programs and scripts:

  • Several control programs were replaced with dcecp and several corresponding daemons no longer exist.

  • ACL manager facilities were provided withing libdce; it is now necessary to transition user-written ACL managers to use the new facilities.

For detailed information about these items, see the release notes in:

    /opt/dce/newconfig/RelNotes/HPDCE1.5RelNotes.ps
 
    /opt/dce/newconfig/RelNotes/HPDCE1.5RelNotes.txt

For 10.10:

  • Parity with OSF/DCE Version 1.1

  • Single Administrative DCE Control Program - dcecp

  • DCE Daemon (combines rpcd and sec_clientd) - dced

  • Cell Aliasing

  • Hierarchical Cells (limited)

  • Serviceability improvements

  • Security Delegation - intermediary servers can operate on behalf of the initiating client while preserving identities and ACLs

  • Auditing - tracking of security-related events

  • Extended Generic Security Service Application (GSSAPI) - message passing applications can use DCE security (includes GDS)

  • Extended Registry Attributes (ERA) - provides single sign-on across non-Unix platforms and legacy systems by enabling a secure way of associating additional security information with users and groups

  • Extended Login Capabilities - pre-authentication and password management allows applications to require access only from trusted machines

  • Group Override - customizes group name mapping from host to host to allow DCE to adopt to various operating system conventions

  • Internationalization Interfaces - message catalogs for all user-visible messages

  • Character Code Set Interoperability - allows development of RPC applications that automatically convert character data from one code set to another

  • IDL Compiler performance enhancements - smaller stub size and support for a number of new IDL constructs

  • RPC Performance Enhancements - allows additional client sockets during peak usage and optimizes RPC runtime packets

  • GDS Enhancements - ease of programming and administration

  • DFS/NFS Gateway (was available in HP DCE 1.2)

  • DFS Delegation - files can be passed with initiator's privileges intact

  • Subtree Operations - allows large-scale administrative name changes within cells

  • Distributed Time Server (DTS) Enhancements - remote administration

  • Enable single threaded Datagram protocol clients

  • Single cds client process per machine

  • Support for Kerberos V5 clients

  • dced/dcecp time synchronization

  • Increase performance of local RPC

  • IDL+!+ user defined exceptions

  • Compatibility with ServiceGuard

  • Reduced disk and memory consumption for client host machines

Default-Bundled Software

DCE default-bundled software is included in one or more of the Series 800 Server and Series 800 Minimum Functionality bundles.

DCE default-bundled software includes:

  • DCE Shared Libraries:

    • pthreads shared library (libcma.sl)

    • International DCE shared library (libdce.sl)

  • DCE Core Client Software:

    • Allows you to configure and administer a minimal DCE client host and to run any DCE RPC applications.

    • Includes:

      • DCE daemon and control program

      • CDS client and administrative software

      • Security client and administrative software

      • Kerberos tools

      • Administrative tools for UUIDs, status codes, etc.

      • Message catalogs for all DCE runtime software

      • DCE Audit Service daemon

  • DTS Software:

    • Allows you to synchronize DCE hosts.

    • Includes:

      • DTS daemons and administrative software

Optional-Bundled Software

For 10.30:

This software is optionally installable. That is, it is included on the HP-UX 10.30 media and is available for installation, but is not included in any of the default HP-UX bundles.

The optional-bundled software includes:

  • Manpages and online help for bundled software

Consult your HP Sales Representative (SR) or Service Engineer (SE) for details.

For 10.20 and 10.10:

This software is optionally installable. That is, it is included on the HP-UX 10.20 and 10.10 media and is available for installation, but is not included in any of the default HP-UX bundles.

The optional-bundled software includes:

  • DFS Client Software

  • Supplemental DCE Administrative Software (Account Manager, Cell Monitor, CDSBrowser, HP Camera, dceping, dceval, and so on.)

  • DCE Application Development Software

  • Manpages and Online Help for bundled software

Consult your HP Sales Representative (SR) or Service Engineer (SE) for details.

For further DCE product information, including configuration instructions and information on how US users can order the free "DCE/9000 U.S. Libraries for HP-UX" product, see the following:

On a 10.30 system:

  • /opt/dce/newconfig/RelNotes/HPDCE1.6RelNotes.ps

  • /opt/dec/newconfig/Relnotes/HPDCE1.6RelNotes.text

On a 10.20 system:

  • /opt/dce/newconfig/RelNotes/HPDCE1.5RelNotes.ps

  • /opt/dce/newconfig/RelNotes/HPDCE1.5RelNotes.txt

On a 10.10 system:

  • /opt/dce/newconfig/RelNotes/HPDCE1.4.1RelNotes.ps

  • /opt/dce/newconfig/RelNotes/HPDCE1.4.1RelNotes.txt



Curses for 10.0
  		 


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