FlowGrid Portal

 

FlowGrid Portal is the point-of-entry to the FlowGrid system. From the Portal the several actors in the FlowGrid system can perform their basic tasks.

  • Users can subscribe to FlowGrid and download the Client. End-users are able to subscribe/register to the FlowGrid service. New subscribers are presented with a Registration form which they need to fill and submit. Existing users are able to modify/update their records, after logging in to the system. On registration, end-users are presented with the option of downloading the FlowGrid client. Furthermore, end users are able to apply for a Certificate from the Certificate Authority, to enable them to use the FlowGrid facilities.

  • Resource providers. A Resource Provider is able to access information on the systems/resources that she has made available to the FlowGrid services. This is a web-based interface displaying information on the Resource Provider and the resources that have been made available. Resources can be added to or withdrawn from the system by the resource provider
.
  • The administrator oversees these tasks. The FlowGrid administrator has the authority to add or remove Resource Providers from the FlowGrid service. These actions are controlled by the Certificate Authority or any other organisation that has the authority to manage the Resource Providers accounts. After login-in, an administrator has a view of all the resource providers that have joined the FlowGrid service.
  • The software required for the management of subscribers, resources and resource-providers can be accessed through the FlowGrid Manager Interface. Behind the FlowGrid Manager Interface consists of Perl/CGI modules running on an Apache Web-server, and performs all the portal functions, including the management of information through the MySQL database management system (DBMS). The flow of information in the FlowGrid Portal is illustrated in the figure.


 
 
Security

 

A certificate needs to be generated for each Subscriber, FlowServe Provider and Resource Provider in order to allow these entities to participate in the FlowGrid service. This certificate is used to allow secure communication between GenIUS, FlowServe and the computing resources.


The certificate generation is similar for all three different types of systems. First a private key and a certification request are generated using Globus tools. The certification request needs to be submitted to the Certification Authority (CA) which is trusted by the FlowGrid project. The CA will verify the enquirer and eventually validate the request by signing it and sending the certificate back.

 

Copyright 2004 FlowGrid Consortium | Please send questions or comments to Norberto.Fueyo@posta.unizar.es, or to any other FlowGrid partner | Last modified on 02/04/2004