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Networks and Telecommunications
Research Group Projects


The projects page lists the various projects the the NTRG is currently involved in.

Staff, Postgraduates, Undergraduates and NTRG Alumni

Resources for 4BA2, 1ICT1 and 3ICT1 undergraduate courses.

Papers, Technical reports and presentations

Some links to telecommunications, e-commerce and cryptography resources.

The X.500 Global Directory Service


The X.500 global directory service is an easy way to find individuals contact addresses such as address, phone, fax or E-mail. Information on those members of the global population that are registered, is held in a collection of Directory Systems Agents (DSAs)

The Root DSA for Ireland is operated by the NTRG at Trinity College Dublin.

A line-oriented public access gateway is available at TCD using TELNET. Click here and Login as de (Directory Enquiries)

X.500 Gateways

  • Gateway to X.500 from the Trinity College Maths Dept

  • General information on X.500 and assorted gateways is available from Nexor in the UK.

  • Search Ireland using the WWW Gateway at the Technical University of Chemnitz - Prompts are in German.

  • Search the World using the Same Gateway

  • For faster access without pictures, try the Gopher-X.500 Gateway at UCD.


  • Last Modified 17 June 2000. URL: http://ntrg.cs.tcd.ie/index.html Donal.OMahony@cs.tcd.ie