vnStat is a console-based network traffic monitor for Linux and BSD that keeps a log of network traffic for the selected interface(s). It uses the network interface statistics provided by the kernel as information source. This means that vnStat won't actually be sniffing any traffic and also ensures light use of system resources. However, in Linux at least a 2.2 series kernel is required.
Ethstatus is a console-based monitoring utility for displaying statistical data of the ethernet interface on a quantity basis. ...
BandwidthD tracks usage of TCP/IP network subnets and builds html files with graphs to display utilization. Charts are built b ...
sys_watchdog keeps your *NIX servers green by performing periodic checks and optionally actions like service restarts and noti ...
NTop is a hybrid layer 2 / layer 3 network monitor, that is by default it uses the layer 2 Media Access Control (MAC) addresse ...
TrafShow continuously display the information regarding packet traffic on the configured network interface that match the bool ...
Cacti is a complete frontend to RRDTool, it stores all of the necessary information to create graphs and populate them with da ...
wavemon is a wireless device monitoring application that allows you to watch signal and noise levels, packet statistics, devic ...
darkstat is a packet sniffer which runs as a background process, captures network traffic, calculates statistics and serves th ...
nload is a console application which monitors network traffic and bandwidth usage in real time. It visualizes the in- and outg ...
Munin is a networked resource monitoring tool that can help analyze resource trends and "what just happened to kill our perfor ...