Wake up computers over network
A server and database monitoring platform.
Monitor SNMP hosts with a sysfs-like filesystem in user-space
This is an utility for IPv6 similar to whatmask for IPv4
Remote control through ssh and xdotool
Keep your record at free dynamic DNS freedns.afraid.org up-to-date.
Poll JMX attributes from Java based applications with Nagios
TCP/UDP Network Test Utility
flex-fw is a small and fast console frontend to iptables
Analyze the network carateristics like Delay, Jitter, Packet loss etc.