Sentinel System Monitor is a plugin-based, extendable remote system monitoring utility that focuses on central management and flexibility while still being fully-featured. Stubs are used to allow remote monitoring of machines using probes. Monitoring can support multiple architectures because the monitoring probes are filed by a library process that hands out probes based on OS/arch/hostname. Execution of blocks can be triggered by either test failure or success. It uses XML for configuration and OO Perl for most programming. Support for remote command execution via plugins allows reaction blocks to be created that can try and repair possible problems immediately, or just notify an administrator that there is a problem.
