PRODUCT NAME: VAX Distributed Name Service, Version 1.1   SPD 28.79.01

DESCRIPTION

The VAX Distributed Name Service (DNS) provides selected DIGITAL 
products with a DECnet-wide name-to-attribute mapping service.

DNS presents and maintains a consistent, network-wide set of names for 
network resources, called the namespace. These names are constructed without
including any location information in them, thus permitting users to 
reference these network resources independent of their physical location.

A single DNS node can provide a DECnet-wide name service. DNS can be 
installed on additional nodes in a network to provide availability and
performance benefits. As a general rule, it is suggested that DNS be 
placed on two nodes in each local area network. This should provide adequate
performance and redundancy for most networks.

The VAX Distributed Name Service is used by selected DIGITAL products only, 
as noted in their SPDs.

Features

The following is a summary of features available with the VAX Distributed 
Name Service:

^  DNS provides a network-wide name-to-attribute mapping service which 
   allows selected DIGITAL applications to create, read, modify, and delete
   names in the namespace.

^  DNS can store and manage a large number of names using a hierarchical 
   structure.

^  Overall availability and performance of the name service can be enhanced 
   by installing DNS on multiple nodes. DNS automatically maintains 
   consistency of the namespace across all DNS nodes.

^  DNS provides access control to each name in the namespace. This set of 
   access control rights consists of read, write, delete, test, and
   control.

^  The DNS management control program controls DNS operation and displays 
   statistical and error information.

^  DNS provides network event logging using the standard DECnet-VAX event 
   logging facility. The DECnet-VAX NCP utility can be used to enable and
   disable DNS events.

HARDWARE REQUIREMENTS

VAX, MicroVAX, or VAXstation configuration as specified in the System 
Support Addendum (SSA 28.79.01-x).

Communication devices as specified by DECnet-VAX (SPD 25.03.xx).

OPTIONAL HARDWARE

Additional communication devices as specified for DECnet-VAX 
(SPD 25.03.xx).

SOFTWARE REQUIREMENTS *

VMS Operating System or MicroVMS Operating System

DECnet-VAX

* Refer to the System Support Addendum for availability and required versions 
  of prerequisite software (SSA 28.79.01-x).

OPTIONAL SOFTWARE

None 

ORDERING INFORMATION

Software Licenses: QL-VERA*-**
Software Media: QA-VERA*-**
Software Documentation: QA-VERAA-GZ
Software Product Services: QT-VERA*-**

* Denotes variant fields. For additional information on available licenses, 
  services and media refer to the appropriate price book.

SOFTWARE WARRANTY 

Warranty for this software product is provided by DIGITAL with the purchase 
of a license for the product as defined in the Software Warranty
Addendum.

SOFTWARE LICENSING

This software is furnished under the licensing provisions of DIGITAL's 
Standard Terms and Conditions.  For more information about DIGITAL's 
licensing terms and policies, contact your local DIGITAL office.

LICENSE MANAGEMENT FACILITY 

This layered product supports the VMS License Management Facility.

License units for this product are allocated on a CPU-capacity basis.

For more information on the License Management Facility, refer to the 
VMS Operating System Software Product Description (SPD 25.01.xx) or the
VMS Operating System documentation set.

For more information about DIGITAL's licensing terms and policies, 
contact your local DIGITAL office.

SOFTWARE PRODUCT SERVICES

A variety of service options are available from DIGITAL. For more information 
contact your local DIGITAL office.

August 1988
BH-KS65B-TE