CATool is a Web-based, self-service private Certificate Authority for Unix. It can generate PKI encryption certificates for 802.1x wired and wireless authentication, Web servers, Web browsers, SSL, AOL Instant Messenger, Radiator, and any other PKI-compliant application. It supports Certificate Revocation Lists, email notification, etc. for small to large organisations.
Nets is a flexible and extensible network inventory and asset management system that works on all Unix and Windows platforms, and works with most SQL databases. Its complete GUI allows you to maintain details of your entire network, from network links down to interfaces and routers. It assists in provisioning, costing, reporting, and maintaining network details. It includes a network browser, an extension API, and plugins for IP address map visualisation, reports, schematics.