Gossimon is a gossip-based distributed monitoring system for a cluster of Linux nodes. Each node in the cluster periodically send information about itself and others to a randomly selected node. This way, each node constantly receives information about cluster nodes. This information is locally maintained (constantly updated) by each node and can be used by various clients for monitoring and resource allocation. The gossip protocols used by gossimon are very robust to node failure, and the information quality is hardly degraded even when large parts of the cluster are taken down. The package contains: infod (the daemon responsible for collecting and sending information for other nodes); mmon (a curses-based monitoring client displaying information about cluster nodes); and infod-client (a command-line client that retrieves cluster information in XML format).
LiKee (which stands for LIne KEEper) is a monitoring system for supervision of Web applications and pages. It is a tool for automation of service processes of uptime-critical Web applications. It periodically monitors remote pages and evaluates their content with regular expressions. It can send alerts through email, GSM calls, and SMS. It offers Web-based administration and reporting with advanced graphical design.