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BMS's TOPPER network and email management tool performs real-time monitoring, alerting, and reporting for NT and Unix-based systems.

The gnome network management application.

Monitoring tool for dynamic Web applications. It dynamically creates and assembles URLs and scans them at arbitrary intervals, performs predefined checks on URL content, size, and timing.

The iReasoning SNMP library provides a high performance, cross platform Java API for building network management applications based on SNMP. All SNMP versions (SNMPv1, SNMPv2c and SNMPv3) are fully supported. It is written in Java, and has been designed from the ground up.