Lease Parser saves lease states from an ISC DHCP server in a MySQL database, making it possible to tell which MAC address owned an IP at a particular time. If you need to track down a DHCP user for any reason, such as an abuse complaint for actions weeks beforehand, you can simply search the database via the Web form for the IP during the time in question. Then, search on the MAC address you obtained to see if the system is still on the network and what it's current IP is.
IptablesWeb allows a user to inspect iptables logs and to receive email and alerts using a Web browser. It is plugin-based, portable to any database, and supports multiple languages and multiple users. It features the ability to duplicate each plugin in any number of blocks, each with its own characteristics. The update (refresh) time can be set on each block to reduce the CPU load. Blocks can be dragged and dropped to change their display order.
The Stickybeak uses dynamically generated images and P3P architecture to provide a cross domain user logging and tracking system. The image and cookie generation process is highly configurable and allows logging of additional user-defined variables. The Stickybeak logs user activity to a MySQL database.
mSuite is a solution for enterprise-wide infrastructure management. This solution uses Monolith Event Manager (Event/Fault), Action Manager (E&N), and Reporter (Historical Reporting). Monolith integrates with a variety of availability and performance tools based upon a client's needs. mSuite can monitor syslogs, SNMP traps, and NT event logs.
superseriousstats is a small and efficient program for creating a Web page with statistics from various types of IRC logs. It keeps track of its parse history and only processes new activity before storing any accumulated data in a SQLite or MySQL database. It is suitable for high volume IRC channels and large log archives, and is relatively easy to integrate with IRC services (e.g. bots) that interact with the database and provide last seen information and many other statistics directly in your channel.