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After collecting the information it will send back the raw data encapsulated in an SNMP protocol. MRTG records this data in a log on the client along with previously recorded data for the device. The software then creates an HTML document from the logs, containing a list of graphs detailing traffic for the selected devices in the server.
PRTG (Paessler Router Traffic Grapher) is a network monitoring software developed by Paessler GmbH. 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.
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.
Network performance could be measured using either active or passive techniques. Active techniques (e.g. Iperf) are more intrusive but are arguably more accurate.Passive techniques have less network overhead and hence can run in the background to be used to trigger network management actions.
Example graph produced by Munin showing memory usage. Munin is a free and open-source computer system monitoring, network monitoring, and infrastructure monitoring software application. [4] Munin is written in Perl and uses RRDtool to create graphs, [5] which are accessible over a web interface. Its emphasis is on plug and play capabilities.
The software features algorithms designed to predict future network statistics. Auto Discovery The software automatically discovers hosts or network devices it is connected to. Agentless The product does not rely on a software agent that must run on hosts it is monitoring, so that data can be pushed back to a central server.
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Even though Zabbix is open-source software, it is a closed development software product, developed by Zabbix LLC based in Riga, Latvia. Early in its history, Zabbix was described as simple to set up compared to other monitoring solutions. [5] [6] However, later it was considered by some to need a significant amount of manual configuration. [7]
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