Nowadays, many projects are carried out in a collaboration of people or groups from different institutions and/or enterprises. Such a virtual organization is characterized by high communication needs but does not operate in one single environment. MetaVoIP eases the communication as it automatically combines contact information from different PBXs and provides it to all partners. For a given vi...

In this article we describe the mechanisms offered by the ISCO [2, 1] language for defining and implementing access control and homologation, within the scope of a large-scale information system. ISCO is a Logic-based system which integrates multiple heterogenous information sources such as classical relational databases or LDAP directories. The rule-based access control mechanisms present in I...

Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as refer...

Grid software often unfortunately requires significant changes in existing infrastructure, both in terms of policy and mechanism, instead of accommodating and leveraging existing information servers such as enterprise LDAP servers and enterprise authentication infrastructures. The University of Virginia Campus Grid (UVaCG) has been designed explicitly to re-use as much existing infrastructure i...

Monitoring and testing for regression of large scale systems such as the NCSA’s Blue Waters supercomputer are challenging tasks. In this paper we describe the solution we came up with to perform those tasks. Our goal was to find an automated solution for running user-level regression tests to evaluate system usability and performance. Jenkins, an automation server software, was chosen for its v...

The Internet White Pages Service (IWPS) has been slow to materialise for many reasons. One of them is the security concerns that organisations have, over allowing the public to gain access to either their Intranet or their directory database. The Directory Guardian is a firewall application proxy for X.500 and LDAP protocols that is designed to alleviate these fears. Sitting in the firewall sys...