X.500 Usage at UT Components


Directory Home

FAQ

Eudora Access

Tips and Tricks

Complex Searches

About the Directory

Vital Stats

Overview

In early April of 1996 I gathered some technical information regarding the implementation and use of X.500 directory services from various components of the University of Texas System. The purpose of this was to familiarize myself with the X.500 system in general and more specifically to understand the hardware and systems administration requirements for running an X.500 server. I did not discuss policy issues except as they related to specific technical matters.

My major finding was that the hardware requirements were not as heavy as I had been led to believe. At the time the directory service was initially discussed here at the Health Science Center it was generally believed that the software was a resource hog, and would require a computer of considerable size. It was revealed that with the improvements to the software and advances in computer capability in just a few years, it is possible to run X.500 services at an institution the size of UT Houston with server of reasonable size.

I also found that installing and configuring the system is not greatly complicated, though it does require familiarity with protocols and software that are not common on the Internet and therefore not a part of the "Internet culture".

Specifics

I spent two days visiting colleagues three UT components in Austin and San Antonio:
  1. William C. Green at UT Austin
  2. Tracie Spillar at UT System offices
  3. Scott Mitchell at UT Health Science Center San Antonio
The table below summarizes what implementations and resources each component was using at the time of my visits.
Implementation By Component
Component Server Software Hardware Number of Entries Data Source Usage Operating Since Comments
UT Austin ISODE Quipu 12.0 2 DEC 5000 MIPs boxes 70,000 Reflection of corporate data 10,000 queries/day: web, gopher, finger Early 1993 Moving to a single Alpha
UT San Antonio Innosoft v5.0 PMDF VAX 4000, 128MB 3,500 Monthly from user database Underutilized 1994 Using homegrown email directory
UT System Admin Innosoft V5FT PMDF DEC 3000 346 Email Directory via Visual Basic fomr Persons Database October 1995 Hardware also does email and DNS

DSA Manager / <info@x500.uth.tmc.edu> / Last Change: Dec 12, 1996