WASD Hypertext Services - Technical Overview

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1 - Introduction

As of July 1997 High Frequency Radar Division (HFRD) underwent a change of role and name. It is now Wide Area Surveillance Division (WASD). This package has been renamed in accordance with that.

This document provides an technical overview of the WASD VMS HyperText Transport Daemon environment. It is primarily written for use internal to WASD and assumes that perpsective without apology. Any additional usage is subordinate to its role within WASD. The software has been written expressly for supporting an intra-organisational hypertext environment on a VMS platform (June 1997 note: since first writing this the industry has settled on the term Intranet). It too, is unreservedly tailored to this purpose and the requirements of WASD. All programs were designed only to specifically comply with the requirements of VAX C and DEC C, within a DEC TCP/IP Services for VMS environment.

The document assumes a basic understanding of the hypertext technologies and uses terms without explaining them (e.g. HTTP, HTML, URL, CGI, SSI, etc.) The reader is refered to documents specifically on these topics (these are often best consulted on-line, on the Internet WWW).

Also see WASD Hypertext Environment for information on using the WASD VMS hypertext facilities.

Reasons For a Local HTTPd

Reasons for developing a local HTTPd server are few but compelling:


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