Light-weight system monitor for X
SQL operating system instrumentation and monitoring framework
Graphical network monitoring and documentation tool
Storage, SAN, LAN Performance Monitoring: IBM,NetApp,Hitachi,HPE,EMC
Enhanced Apache Server Status page - for one or multiple servers
A simple, portable port scanner
Count the number of people around you by monitoring wifi signals
Database monitoring agent for zabbix
Monitor Apache using SNMP
Tkined/Scotty is a graphical network monitoring package
A program for monitoring a DSL connection
Easy to use web front-end for NAGIOS / ICINGA also CD installer
Wait for a network device to come online and run an associated script