What is NI&S AAA?
NI&S's AAA system provides authentication and authorization for a number of different services, ranging from user network access to administrator access to the network infrastructure itself. The two main software components are FreeRADIUS and OpenLDAP.
FreeRADIUS
FreeRADIUS is a free, open-source RADIUS server. Its modular design has successfully encouraged significant community development, and it supports all commonly used authentication protocols and databases. FreeRADIUS provides the AAA system with a performant, scalable RADIUS solution.
OpenLDAP
OpenLDAP is a free, open-source LDAP directory server. NI&S's instance of the directory contains entries with authentication and authorization data used by FreeRADIUS, and is managed by the Middleware group.