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bmon is a free and open-source monitoring and debugging tool to monitor bandwidth and capture and display networking-related statistics.It features various output methods including an interactive curses user interface and programmable text output for scripting.
Iftop is a free software command-line system monitor tool developed by Paul Warren. It produces a real-time stream of incoming and outgoing network communications from the operating system iftop is running within. [2] By default, the connections are ordered by bandwidth usage, with only the
Netdata is a partially [4] open source [5] [6] tool designed to collect real-time metrics, such as CPU usage, disk activity, bandwidth usage, website visits, etc., and then display them in live, easy-to-interpret charts.
It was originally developed by Tobias Oetiker and Dave Rand to monitor router traffic, but has developed into a tool that can create graphs and statistics for almost anything. MRTG is written in Perl and can run on Windows, Linux, Unix, Mac OS and NetWare. A sample MRTG bandwidth graph.
A common usage is to monitor network traffic by polling a network switch or router interface via Simple Network Management Protocol (SNMP). The Cacti end user front end supports both User and User Groups security models and supports Role Based Access Control (RBAC) for access to not only monitoring data, but various areas of the user interface.
It monitors system conditions like bandwidth usage or uptime and collect statistics from miscellaneous hosts such as switches, routers, servers, and other devices and applications. It was initially released on May 29, 2003 by the German company Paessler GmbH which was founded by Dirk Paessler in 2001.
Some tools measure traffic by sniffing and others use SNMP, WMI or other local agents to measure bandwidth use on individual machines and routers. However, the latter generally do not detect the type of traffic, nor do they work for machines which are not running the necessary agent software , such as rogue machines on the network, or machines ...
Ganglia software is bundled with enterprise-level Linux distributions such as Red Hat Enterprise Linux (RHEL) or the CentOS repackaging of the same. Ganglia grew out of requirements for monitoring systems by Berkeley (University of California) but now sees use by commercial and educational organisations such as Cray, MIT, NASA and Twitter.
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