Nine best open source network monitoring tools.

9 Best Open Source Network Monitoring Tools

Table of Contents

Introduction 

Network monitoring is a critical component of your network management strategy that provides valuable insights into network-related problems that can affect your organization. Monitoring networks regularly mitigate risks like overloaded networks, router problems, downtime, cybercrime, and data loss.

              

Network monitoring lets you:

            

  • Understand over-used and under-used network elements.
  • Fix minor network faults that often turn into significant problems.
  • Identify cybersecurity threats.
  • Safeguard critical data.
  • Proactively monitor network devices, servers, and network traffic.
  • Analyze network performance and bandwidth usage in real-time.
  • Prevent network outages and downtime.

                 

All successful companies invest in network monitoring tools that provide accurate insights into performance, speed, security, and productivity. Open-source tools have additional benefits such as easy customization, lower costs, independence, scalability, and stability. But which open-source monitoring tool is best for your organization in 2021?

                      

MetricFire boasts a suite of open-source monitoring tools for servers, applications, systems, networks, and other business-critical infrastructure. Easy to configure and implement in your organization, MetricFire offers a Graphite solution for displaying monitoring metrics on highly functional dashboards. Discover MetricFire here, book a demo, or sign up for a free trial!

                                  

Key Takeaways

  1. Network monitoring is essential for any organization, providing valuable insights into network-related business problems.

  2. Network monitoring can help identify cybersecurity threats, safeguard critical data, prevent network outages and downtime, and improve network performance.

  3. Open-source monitoring tools offer easy customization, lower costs, independence, scalability, and stability.

  4. There are two types of network monitoring tools: proprietary and open source. Open-source tools are customizable, scalable, and robust, providing companies with a low-cost, effective alternative to proprietary software.

  5. Nine of the best open-source tools for network monitoring in 2021 are Graphite, Prometheus, Icinga, Nagios, Zabbix, Cacti, Observium, Netdata, and Sensu.

Why is Network Monitoring so important?

Network monitoring is the bedrock of network management, providing enterprises with real-time insights into network elements, performance, productivity, and security. By monitoring networks, you can quickly identify security risks and other anomalies. 

                    

You can also prevent irreversible server, system, and infrastructure damage. Implement network monitoring in your organization and build better networks with low latency and higher speeds. Organizations invest in network monitoring for multiple reasons. 

       

Security is a top priority for most enterprises, and network monitoring identifies cybercrime, insider threats, and unauthorized network access. Companies that provide goods and services to customers also use network monitoring to reduce downtime and outages. 

          

Another benefit of network monitoring is measuring over-used and under-used network elements. This improves network performance with less waste of valuable resources, giving you more bang for your buck. Minor network changes have an enormous impact on workflows, slowing productivity and reducing cybercrime.

          

It’s important to remember that cybercrime, like many others, is often a crime of opportunity. That means someone might seize the opportunity to take advantage of an open network if the chance is there. That’s why cybersecurity is essential. These open-source network monitoring tools allow you to protect your systems from security risks. Cybercrime is extremely difficult to pinpoint. The criminal defense lawyers at Spolin Law P.C. have seen many people facing significant prison time for crimes they didn’t commit. We may even use network monitoring tools as evidence to support our clients’ cases.

Organizations can use network monitoring to monitor vital elements and fix minor issues before they become problems, keeping the business flowing smoothly. To get value, organizations should facilitate network monitoring regularly.

              

However, this is highly time-consuming and typically involves a large amount of money, which can be very costly. Network monitoring tools prove helpful for organizations that lack these resources.

                                       

                                                            

Tools for Network Monitoring

There are two types of network monitoring tools:

             

  • Open-source network monitoring tools
  • Proprietary network monitoring tools

                

Proprietary network monitoring tools are available under license. These tools can cost up to tens of thousands of dollars. An example of a proprietary network monitoring tool is Orion. Open-source networking monitoring tools are copyright-free and available to all organizations, regardless of size.

           

These tools are customizable, scalable, and robust, providing companies with a low-cost, effective alternative to proprietary software. Open-source tools work the same way as proprietary tools, and many are available on the market.

              

Organizations use open-source network monitoring to identify network issues, improve network performance, and generate real-time insights into: 

          

  • Bandwidth usage
  • Network connections
  • Network Health
  • Unauthorized access and cyber security
  • Network performance
  • Uptime/downtime
  • Outages

             

By implementing an open-source networking tool into your organization, you can identify network problems quickly and prevent downtime and other issues that affect your profits and productivity. So, which network monitoring platform should you choose? Here are nine of the best open-source tools for 2021.

           

Optimize network monitoring in your organization with MetricFire's suite of open-source solutions. You should book a demo or register for a free trial.

             

Graphite

Graphite is an open-source FOSS tool that tracks time-series data, such as network performance. The platform then displays this data for users on a dashboard, simplifying network management considerably. Though Graphite is one of the most used open-source tools for network monitoring, the platform has many limitations.

         

Users cannot view insights as teams or extract and load data to an external database or warehouse. Still, Graphite's excellent reporting capabilities help organizations spot network deficiencies quickly.

        

Pro-tip: Supercharge Graphite with additional features such as team accounts, granular dashboard permissions, AWS integration, Heroku integration, logging tools, and a built-in agent. Click here to learn how Graphite as a Service from MetricFire will transform your business.

            

Prometheus

Prometheus is an open-source network monitoring tool that alerts users about network-related issues such as low latency, memory utilization, and cybercrime. Built at SoundCloud, Prometheus searches for metrics from network tasks and displays them in an easy-to-use dashboard for analysis.

      

It runs on Windows operating systems and supports various networking infrastructures, such as Cisco. Other features include Netflow flow analysis. Network problems range in severity, and Prometheus distinguishes between minor issues and major problems so you won't receive hundreds of notifications. (The platform only alerts you about serious network vulnerabilities.)

                

Zabbix

Zabbix is a free network monitoring system that checks all infrastructure, including networks. Thousands of organizations use this platform for performance insights into packet loss, network mode, connections, CPU, memory utilization, and bandwidth.

          

You can schedule network monitoring and receive instant notifications about problems such as network over-use or under-use. This automation prevents you from manually checking networks, freeing up resources and team members.

       

How does Zabbix compare to Prometheus? Find out here.

           

Nagios Core

Nagios Core (formerly Nagios) is one of the most popular open-source infrastructure monitoring tools, with enhanced monitoring capabilities for networks, systems, and servers. The self-described "industry standard in IT infrastructure monitoring," Nagios schedules and automates monitoring tasks for better network performance.

        

Easy to configure, Nagios alerts you to network performance and security issues so you can take swift action and prevent further problems. You can also manage networks from a simple dashboard that provides real-time analytics about crashed servers, slow applications, and more.

             

Nagios offers additional capabilities with plugins and extensions through the Nagios Exchange.

            

Learn how Nagios compares to Graphite here.

          

Monitorix

Monitorix is a network monitoring solution for the Linux ecosystem that shows network-related information as basic graphs for further analysis. As a free solution, Monitorix has limitations, but the platform effectively detects failures, long response times, and network security issues.

         

Monitorix describes itself as "lightweight." Users might notice that the platform lacks many of the advanced network monitoring features or performance capabilities of Zabbix and Nagios.

          

Icinga

Icinga (now available as Icinga 2) is an open-source monitoring application with many alerts and metrics for network-related issues. It checks network resource availability, outages, security vulnerabilities, and other network problems and generates metrics on an easy-to-use API. Other features include SNMP monitoring, auto-discovery, and tracking tools for your entire IT infrastructure.

         

This platform proves a valuable addition to your tech stack, but it lacks some features of more comprehensive network monitoring tools like Graphite and Prometheus. Still, its functionality and usability make it a perfect choice for smaller organizations or beginners.

                  

Cacti

Cacti is a web-based RRDTool-based graphing solution and networking monitoring platform that generates accurate network metrics for your organization. Features include unlimited graph items, graph data manipulation, customizable data gathering scripts, SNMP support, and auto-padding for graphs.

            

The front end can handle multiple users, allowing each one to have their own graph sets. This makes it an ideal choice for web hosting providers because it will enable them to display bandwidth statistics for their customers.

         

If you're new to network monitoring, you might find Cacti's learning curve quite difficult. But because this is an open-source solution, it won't cost you anything to try Cacti with your network devices.

                   

LibreNMS

LibreNMS is an auto-discovering PHP and MySQL-based platform for network monitoring. Although web-based, the tool is mobile-friendly so you can monitor networks while away from the office. And, best of all, you don't need a large monitoring team.

           

LibreNMS supports many network hardware and operating systems like Linux, Cisco, Foundry, and Juniper. It has horizontal scaling capabilities that expand with your network of choice. Other features include custom alerting and notifications via Slack and email.

           

Observium

Observium is network monitoring software that supports Cisco, Windows, Dell, HP, VMware, and other network types and devices. Its simple user interface, add-ons, and many alerting features allow you to optimize network infrastructure and network performance.

             

Adding devices to Observium is easy. However, if you do run into any problems, there are many help and troubleshooting resources to help you resolve them.

           

            

Other Network Monitoring Software (Honorable Mentions)

          

  • Pandora FMS: Lots of scalability and scope.
  • Ping Monitor: Effectively identifies network infrastructure problems.
  • OpenNMS: Enterprise-grade network monitoring.
  • SolarWinds Network Performance Monitor: This product offers many network performance features, such as system health monitoring, bandwidth accounting, virtual system monitoring, server monitoring, and more.
  • PRTG Network Monitor: Self-described as an "all-in-one network monitoring solution," PRTG Network Monitor has various network performance features.

            

           

How to Choose Open-Source Network Monitoring Tools

Organizations don't need to consider price when choosing an open-source network monitoring solution. However, they should realize these platforms typically offer fewer features and capabilities than paid-for software. (A lack of customer support and fewer team accounts, for example.)

       

Still, open-source monitoring tools offer benefits that paid-for software can't, such as copyright-free licenses, no contracts, transparency, and compatibility with other platforms. Using MetricFire's suite of tools provides your organization with the best of both worlds.

        

For example, you can still benefit from open-source software like Prometheus but gain extra benefits such as hosted services, team accounts, data warehouse integration, and full support. 

                   

                                

Conclusion

Network monitoring is more important than ever for network management. Identifying threats that limit network performance increases your organisation's productivity, security, and performance. All network monitoring tools spot network-related inconsistencies, bottlenecks, and failures, but open-source tools provide additional benefits. 

       

These perks include copyright-free licenses, greater flexibility, vendor independence, and the ability to monitor your infrastructure for free. The tools on this list identify security risks, latency problems, slow performance, CPU issues, downtime, over usage/under usage, and much more. Choose a platform that best serves your business requirements.

                

             

How MetricFire Can Help!

MetricFire offers a hosted open-source solution that optimizes Graphite, one of the market's most popular network monitoring tools. Investing in MetricFire solutions such as hosted Graphite and beautiful data visualizations lets you supercharge your network monitoring strategies.

                          

Find out more about MetricFire here, you should book a demo, or sign up for a free trial today.

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