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10 Best Open Source Monitoring Software for IT Infrastructure

The success of a business depends on the proper functioning of all of its critical systems, thus constant monitoring is a must. Without the right tools, keeping tabs on your IT infrastructure’s configuration in different places could be a source of significant strain. You can’t skip out on the monitoring gear, no matter how big or tiny your setup is. Uptime monitoring is critical even if you just have a personal website. Numerous tools, i.e., monitoring software, both open-source and proprietary, can help you keep an eye on your system and get you notified of any problems. With so many options available, it could be challenging to find one that is reasonably priced.

10 Best Open Source Monitoring Software for IT Infrastructure

There is good news, though: a powerful open-source monitoring software is at your disposal. We appreciate the upkeep done by the open-source community. Let’s have a look at the top open source monitoring software for IT infrastructure, and you may pick the one that meets your needs.

1. Nagios

Since its inception in 1999, Nagios has been the de facto standard when it comes to providing monitoring solutions for networks of all sizes. It can keep tabs on just about anything, including network protocols, OSs, system metrics, apps, services, web servers, webpages, and even middleware. It uses the Core 4 monitoring engine, which provides excellent performance with minimal impact on server resources.

Plugins make it possible to incorporate virtually any type of third-party software, and there is probably already a plugin for it. Nagios is used to keep tabs on a wide variety of middleware, including WebLogic, WebSphere, JBoss, Tomcat, Apache, URL, and Nginx.


In need of some Nagios installation assistance? Give this Fiverr offer some thought.

2. Zabbix

Zabbix is a great product for large organisations to use to keep tabs on their servers, networks, apps, and databases. Thousands of companies throughout the world use Zabbix, including big names like DELL, Salesforce, ICANN, Orange, and many more. Zabbix relies on a client-server architecture, with the monitoring agent being on the server (client) being monitored. For example, FTP, SSH, HTTP, DNS, etc. can function without the agent.

You can set it up on a wide variety of platforms, including Linux, AIX, Windows, Solaris, MacOS X, FreeBSD, and OpenBSD. It has SNMP support and better reporting options.


If you’re looking to learn how to deploy Zabbix in a large organization, this online course is a great resource. While installing Zabbix can take some time, you can quickly obtain it on Kamatera if you need it for a proof-of-concept or to test the software.

3. Checkmk

Monitor your servers, networks, cloud assets, databases, containers, and IoT devices using Checkmk’s scalable monitoring solution. Two different implementations are available. Raw Edition is 100% open-source monitoring software, allowing for free, unlimited, and almost endless tracking. As one might guess, there is more content available in the Enterprise Edition.


There are more than 1,900 official integrations available “out of the box” for adaptable tracking. Checkmk agents, vendor APIs, SNMP, or whatever technique you like can be used to keep tabs on the system’s status, performance, and activity logs. It has distributed monitoring capabilities that is fully scalable, making it a good fit for monitoring large environments.

4. Prometheus and Grafana

These are two outstanding free software packages that should be included in this list. Prometheus is used to collect metrics from servers, operating systems, and applications, and Grafana is used to visualize the collected data.

Linux, Windows, databases, routers, messaging systems, storage, APIs, web applications, Kubernetes, and many other platforms all have Prometheus exporters that may collect metrics and send them to the monitoring service.

5. Cacti

Cacti can be downloaded for free and used to monitor your network performance on either Linux or Windows. By connecting to RRDTool, we can generate pivotal graphs for our network data. It uses Simple Network Management Protocol (SNMP) and presents data about networks as understandable graphs. Cacti calls for a MySQL, Apache, or IIS server that supports PHP.


6. OpenNMS

OpenNMS facilitates the creation of scalable network monitoring solutions applicable to any information technology setting. It is possible to collect system metrics using a wide variety of protocols and formats, including JMX, WMI, SNMP, NRPE, XML HTTP, JDBC, XML, JSON, and many others.

Network topology at the layer 2 level can be discovered with OpenNMS. It is built on top of an event-driven architecture and is compatible with the popular monitoring tool Grafana. OpenNMS allows you to view the report on an attractive dashboard and graph thanks to its built-in reporting capabilities. For the most part, OpenNMS has an excellent interface. And Docker can be used to set it up too.


7. Icinga

With the help of the Icinga monitoring framework, you can keep tabs on every system in your network, receive multiple types of alerts in the event of an alarm, and generate reports on service level agreements with ease. Icinga, which began as a fork of Nagios in 2009, was finally set free, leading to the development of the much-improved, highly-configurable, and pleasantly scalable Icinga 2.


8. Netdata

Netdata provides unparalleled real-time health monitoring and performance troubleshooting for systems and applications. Over the past six years, Netdata’s GitHub community has played a crucial role in the company’s evolution and success.

With its cross-platform, fault-tolerant, and lightning-fast performance, Netdata is a must-have for any modern business. You can rapidly investigate infrastructure slowdowns and anomalies using hundreds of data, interactive visualisations, and insightful health warnings. Previously only available on servers, Netdata is now also available on virtual machines, containers, and Internet of Things/edge nodes. As the name implies, it’s open-source monitoring software and completely free.


9. M/Monit

In order to keep tabs on what’s going on in Unix and Linux, the M/Monit application is installed. The need to manage several, similar infrastructure jobs is met by this program. It can be used on any POSIX-based system and requires between 10 and 15 MB of RAM, however this varies with the number of monitored hosts. All of the following DBMSs are compatible with it:

  1. At least MySQL 5.x
  2. PostgreSQL version 8.4 or later
  3. Database Management System Version 3.x for SQLite

As soon as a process dies, M/Monit can automatically start it up again. Thus, it can carry out self-maintenance and repair in the event of a patchy condition. Because of this, your system availability will be maximized.


10. LibreNMS

When it comes to keeping tabs on your network, LibreNMS has you covered. Specifically, it is built on top of PHP, MySQL, and SNMP. For this reason, LibreMNS works with a wide variety of platforms and networking hardware. It can sort interfaces into groups according by their prefixes. Automatic network discovery is feasible with protocols like SNMP, CDP, ARP, FDP, OSPF, LLDP, and BGP.


The web interface is optimised for use on mobile devices and supports a wide variety of hardware configurations.


Free of charge monitoring software is available for usage in the above-mentioned locations. The best way to learn how they work is to download and try them out. Cloud-based application performance management (APM) may be implemented in addition to infrastructure monitoring.

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