The Best Open Source Network Monitoring Tools in 2023

1

Cacti

Description: Cacti is an open source network monitoring tool based on RRDTool’s data logging and graphing system. The tool uses network polling and data collection functionality to gather information on devices on networks of any size. This includes the ability to design custom scripts for data collection alongside support for SNMP polling. It then displays this information in easy-to-understand graphs which can be arranged in whatever hierarchy your business is most comfortable with.

#Monitoring Tools #Performance Monitoring #Log Management

2

Checkmk

Description: Checkmk Raw Edition is an open source infrastructure and application monitoring tool that also includes network monitoring capabilities. For network monitoring, Checkmk can discover and monitor switches and routers, wireless networks, and firewalls; the software supports integration with several network hardware vendors. The solution uses a rule-based concept for configuring network and device monitoring, allowing your company to configure an entire network to monitor for specific metrics.

#Monitoring Tools #Log Management #Incident Management 53 social mentions

3

EventSentry

Description: EventSentry Light is a free version of EventSentry’s SIEM, server monitoring, and network monitoring tool suite. The Light version still features the same event log monitoring capabilities as the full version, so your enterprise can collect and interpret data from logs on devices connected to your network. EventSentry Light also handles system health monitoring functions, including service monitoring, performance issue monitoring, and hardware failure monitoring.

#Web Security #Cyber Security #Identity And Access Management

4

Icinga

Description: Icinga is an open source network monitoring tool that measures network availability and performance. Through a web interface, your enterprise can observe hosts and applications across your entire network infrastructure. The tool is natively scalable and can easily be configured to work with every kind of device. There are also a handful of Icinga modules for specific monitoring capabilities, such as monitoring for VMWare’s vSphere cloud environment and business process modelling.

#Monitoring Tools #Log Management #Performance Monitoring 8 social mentions

5

LibreNMS

Description: LibreNMS is an open source network monitoring system that uses several network protocols to observe every device on your network. The LibreNMS API can retrieve, manage, and graph the data it collects and supports horizontal scaling to grow its monitoring capabilities alongside your network. The tool features a flexible alerting system that is tailor-made to communicate with you via the method that works best for your company. They offer native iOS and Android apps as well.

#Monitoring Tools #Network Monitoring #Performance Monitoring

6

LogRhythm

Description: LogRhythm NetMon Freemium is a free version of LogRhythm NetMon that provides the same enterprise-grade packet capturing and analysis capabilities as the full version. While there are limits on packet storage and data processing, it still allows users to perform network threat detection and response functions based on data packet analysis. It also provides the same network threat alerting system as the full version, allowing you to stay up to date on your network’s performance and security.

#Monitoring Tools #Log Management #OS & Utilities 1 social mentions

7

Nagios Core

Description: Nagios Core is an open source network monitoring tool designed as the basis for other monitoring and alerting software offered by Nagios. The solution is primarily a performance check tool that schedules and executes checks for network performance across the entire infrastructure. As the event processor for performance checks used by other Nagios software, Nagios Core is also able to extend its capabilities with independent add-ons that can be downloaded via the Naigos Exchange.

#Office & Productivity #Tool #Monitoring Tools

8

NetXMS

Description: NetXMS is an open source infrastructure and network monitoring and management solution. The tool features flexible event processing, reporting, and visual graphing for all layers of the IT infrastructure. For network monitoring, NetXMS offers automatic Layer 2 and 3 discovery and full SMNPv3 support. The vendor’s network monitoring solution also includes both active and passive discovery, combining both scanning probes and information collection capabilities together.

#Monitoring Tools #Network & Admin #Performance Monitoring 3 social mentions

9

ntop

Description: ntopng is an open source network traffic analysis tool that also features network monitoring capabilities. The tool is a network traffic probe that sorts network traffic into different criteria, including IP addresses and throughput. By characterizing network traffic, your enterprise can easily determine different network statistics that are affecting your network. While ntopng’s Community version is released as open source, Professional and Enterprise versions are also available.

#Monitoring Tools #Performance Monitoring #DevOps Tools

10

Observium

Description: Observium Community is the free version of Observium’s network monitoring solution. With the free version, users can monitor an unlimited number of devices while also taking full advantage of Observium’s network mapping features. The Observium network monitoring platform features automatic discovery of connected devices, ensuring that the map of your network is up to date. This way, users can account for any new devices as they connect to the network.

#Monitoring Tools #Network & Admin #Performance Monitoring 2 social mentions

11

NMIS

Description: Opmantek Network Management Information System is an open source network management solution for scalable network performance and device status monitoring. NMIS has support for 10,000 vendors and classifies network events based on their business impact. NMIS is included in Opmantek’s NMIS professional bundle, which also includes opCharts for charting performance through customizable dashboards and opReports for analyzing performance data and generating reports on this data.

#Network & Admin #Customer Support #Help Desk 1 social mentions

12

Pandora FMS

Description: Pandora FMS Community is an open source monitoring tool that helps companies observe their entire IT infrastructure. It not only features network monitoring capabilities, but also Windows and Unix servers and virtual interfaces. For networks, Pandora FMS contains features such as ICMP polling, SNMP support, network latency monitoring, and system overload. You can also install agents on devices to observe factors like device temperature and overheating, as well as logfile occurrences.

#Monitoring Tools #Performance Monitoring #Log Management 3 social mentions

13

Paessler PRTG

#Monitoring Tools #Performance Monitoring #Log Management

14

Prometheus

Description: Prometheus is an open source monitoring solution focused on data collection and analysis. It allows users to set up network monitoring capabilities using the native toolset. The tool is able to collect information on devices using SNMP pings and examine network bandwidth usage from the device perspective, among other functinos. The PromQL system analyzes data and allows for the program to generate graphs, tables, and other visuals on the systems it monitors.

#Monitoring Tools #Performance Monitoring #Log Management 218 social mentions

15

Spiceworks

Description: Spiceworks Network Monitoring is a free tool offered as a part of a Spiceworks monitoring and management solution suite. Their monitoring solution offers real-time monitoring capabilities for networks and devices. You can perform ping checks to verify that your network and all connected nodes are currently functional. The tool also supports common network protocols, like HTTP and SIP, or user-defined custom protocols, as well as custom settings for alerts based on sensitivity.

#Help Desk #Monitoring Tools #IT Management 4 social mentions

16

Zabbix

Description: Zabbix is an open source monitoring tool suite that includes network monitoring. The network monitoring capabilties of Zabbix includes performance metric analysis, such as bandwidth usage, packet loss, and CPU/memory utilization. It can also detect network node and connection health problems by checking for devices in critical condition. Zabbix can alert you when hardware functions are dropping (fan speed of a network device is low) or when an SNMP check is not responded to.

#Monitoring Tools #Performance Monitoring #DevOps Tools 5 social mentions