Virtualmin is a Webmin module that simplifies the process of setting up and managing virtual servers. It can create Apache virtual hosts, BIND DNS domains, MySQL and PostgreSQL databases, and set up Sendmail or Postfix to accept email for a domain. It can also manage mailboxes and mail aliases within a domain.
Skulker is a rules-based tool for log and temporary file management. It offers a wide range of facilities to help manage disk space, including compression, deletion, rotation, archiving, and directory reorganization. It provides dry-run facilities to test new rules, as well as detailed space reclaimed reporting.
Performance Co-Pilot (PCP) is a framework and set of services for supporting system-level performance monitoring and performance management. It provides a unifying abstraction for all of the interesting performance data in a system, and allows client applications to easily retrieve and process any subset of that data using a single API. A client-server architecture allows multiple clients to monitor the same host, and a single client to monitor multiple hosts. Archive logging and replay are integrated so that a client application can use the same API to process real-time data from a host or historical data from an archive.
Usermin is a Web interface that can be used by any user on a UNIX system to easily perform tasks like reading mail, setting up SSH, or configuring mail forwarding. It can be thought of as a simplified version of Webmin designed for use by normal users rather than system administrators.
RadiusReport can analyse the logfiles produced by all the major Radius Servers including Livingston Radius V2.0+, V1.16, Merit Radius, Ascend Radius, Dale Reed's RadiusNT, Radiator Perl Radius Server, but excluding Microsoft Radius. It will allow you to produce many, varied, types of reports from one or multiple radius log files.