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As the Site24x7 system is based in the cloud , it just needs to ping the nominated server in order to execute this function, it does not require any agent to be downloaded onto those servers. The paid version of Site24x7 Infrastructure has a lot of useful features.

It has an extensive Network Monitor that examines device status, monitors traffic volumes, logs all devices in an inventory, and generates a network topology map. The service can monitor server resource utilization and virtualizations. It also monitors applications and websites.

Site24x7 Server Monitoring and its companion monitoring tools provide full-stack observability, which makes it a good choice for any size or type of business. The monitoring system is based in the cloud, so it can monitor multiple servers in different locations. There is also an MSP version available. However, there is a way to use the full Site24x7 system for free. This is by accessing the day free trial that Site24x7 offers on the paid plan. ManageEngine OpManager monitors network devices and physical servers.

It is available for free and there are also high plans available for a fee. The network monitoring capabilities of OpManager follow the classic network performance monitoring service model. The service starts monitoring with an autodiscovery function. This uses both Ping and SNMP routines to identify all network devices and other equipment attached to the network.

It then creates a device inventory from that information. This is a recursive system and so any changes you make to the network infrastructure automatically get reflected in adjustments to the network inventory. The service also automatically draws up a network topology map. ManageEngine OpManager provides a great combination of scopes � networks and servers. This package is also good for tracking the performance of virtualizations. There is a Free edition available for this package, but it is limited to monitoring three devices.

The lowest paid tool is very reasonably priced. However, the next edition up, called Professional offers much better value for money because it is where you get virtualization monitoring, database monitoring, and Web server monitoring, on top of the network and server monitoring systems in the Standard edition at a price that is not much higher.

The system gets all model information from each device and also receives performance statistics. The types of information that each device sends include CPU and memory utilization and available storage space. These metrics are also tracked for servers. Network traffic statistics showing volumes of data passing through each interface on each network device are also gathered by OpManager.

Device statuses and traffic performance are all shown live on the dashboard of OpManager, which interprets these statistics into color-coded graphs and charts. All metrics have performance thresholds placed on them and if any of these are crossed, the system generates an alert.

Each device is also able to send the monitor a status alert if it has an issue developing. These alerts are shown on the dashboard and they can also be forwarded to technicians as notifications by email or SMS. Any size of business would benefit from using OpManager. The lower paid editions are very affordable to monitor 10 devices, which is an ideal package for a small business.

The redeployment options for this tool give a large audience an option to use the package. ManageEngine also offers an MSP version. The Free edition is limited to monitoring three devices. The Standard edition is able to monitor 1, devices and it is suitable for monitoring one site. The Enterprise edition has even greater capacity and it is able to unify the monitoring of networks on many sites.

You can get a day free trial of the Standard and Enterprise editions. OpManager installs on Windows Server and Linux. Domotz is a SaaS platform that can monitor any network anywhere.

You can enroll multiple networks into one account and get overviews of the entire multi-site system plus a drill-down for each LAN. The Domotz platform downloads an agent onto a server on each site.

Domotz quickly creates a network map and writes up an inventory that details the attributes of each device that it encountered. This discovery and documentation process is continuous and so all changes to the network will be automatically recognized in the system. It will perform automated performance monitoring across your network and raise an alert if a problem is detected.

The Domotz system sets itself up. The agent installation can be implemented remotely and this tool can be used in a multi-tenanted account structure, making it ideal for use by managed service providers. Within each sub-account, it is possible to enroll multiple sites. The tool uses SNMP to explore the network, discover all devices, and create a network inventory, The network scanning repeats continually, keeping the inventory up to date.

The Domotz service also draws up a live network topology map per site and shows all sites on a map of the world. SNMP also provides performance monitoring that will raise an alert if a device reports a status problem. Monitored metrics can also have performance thresholds set up on them and they will also trigger alerts. This is a time-saver package because it sets itself up and then runs its monitoring cycle without any human intervention.

You can access the system console from anywhere through any standard Web browser. Domotz is available for a day free trial. LibreNMS provides network monitoring for free and it includes an autodiscovery. The first reason that LibreNMS makes it onto this list is that it is free to use. The second feature that recommends this tool is that its autodiscovery system creates a chance to properly organize and track network assets.

This is a good first step for a network that is not properly documented to come under automated management. The ongoing activity monitoring services of LibreNMS provide time series graphs of live statistics, such as Ping responses from all devices. Once the basic service has been set up, you can learn to add in more detail by connecting other data sources into the monitoring tool.

Every statistic that the tool gathers can have thresholds placed against them. An unusual feature of LibreNMS that the big-name monitoring tools do not have is a billing mechanism that records throughput on each device port, which enables company accountants to allocate costs to different departments.

The tool also lacks some of the necessary features that the managers of complicated larger networks would need, such as a network topology map.

So, the LibreNMS package is aimed at small businesses. Prometheus is a free data management tool that can be used to sort through any data sources to produce time-series data streams or performance calculations. The system can be used for a range of business needs, including network monitoring. However, the system is complicated to set up. If you can master the proprietary data analysis language of Prometheus , which is called PromQL, you have a powerful method to create live monitoring packages for any system.

This tool can be used for marketing analysis, cost tracking, and many other business applications. Prometheus connects to other free tools in order to create a monitoring system. For example, the illustration for this review is actually a screenshot of Grafana, which is frequently used as a front end for Prometheus-based systems. The ability to calculate statistics within the PromQL system provides an alerting mechanism.

APIs in Prometheus enable the package to channel alert messages through to third-party systems, such as Slack and email systems. Given the flexibility of Prometheus, it can be put to many uses. The tool could give a lot of value to large corporations that have the budget to allocate to training up developers who can create custom applications from the tool.

Small businesses would benefit from the tool is an owner-manager or an under-occupied network manager is able to acquire the skills to exploit the capabilities of Prometheus. Zabbix is considered by many to be the king of open-source network monitoring. Zabbix offers a network and infrastructure monitoring experience that covers all the bases. You can monitor your infrastructure for high CPU and memory utilization.

If you need to monitor your network performance you can also monitor network bandwidth usage too. Zabbix is an impressive monitoring package for networks, servers, and applications and it is completely free to use. The system can be extended by the installation of templates, which you can get in the user community. These include data-gathering tools to interface with specific software packages and devices plus widgets to place live statistics on a console screen.

It also offers users a healthy range of templates for popular technology providers. This includes the basic infrastructure monitoring mentioned above as well as the ability to monitor configuration changes. Notifications and alerts are also included in the Zabbix product. You also have the ability to completely customize the content of your notifications.

This allows you to determine the information that you send to your first point of contact. As it is free to use, Zabbix will particularly appeal to small businesses and start ups. However, large organizations also use Zabbix, so it is suitable for businesses of all sizes and types. In the event that no one responds to your notification, you can escalate it to another member of staff automatically. This is one of the features that make Zabbix a standout product on this list.

Nagios Core is one of the most-respected infrastructure monitoring products in the world. This platform is available on Windows , Linux , and VMware and allows you to monitor your network activity meticulously. It has a web-based GUI that allows you to view the health of your network infrastructure and key services. The user interface strips back the unnecessary detail in favor of a back-to-basics design. Nagios Core is an excellent package and it is the definitive open-source system monitoring software.

The big problem you will face with Nagios Core is that its interface is very rudimentary, so most users pair it up with a third-party front end � Kibana is a good choice for this. The Nagios team recently greatly reduced the appeal of both Nagios Core and its paid counterpart, Nagios XI by removing all network traffic monitoring functions out into a separate paid tool.

Infrastructure health is color-coded so that you can tell at a glance if there is a problem. This is particularly useful in summary views. You can view summary views on host status and service status to see which elements are up and running. Devices and services are marked as Up , Down , Unreachable , or Pending.

You can also view more general overviews with displays such as the Top Alert Producers window which shows you all the devices that have triggered alerts that could warrant a response. The user interface is not only easy-to-use but is also supported by configuration wizards.

This is particularly useful for newer users who are unsure of how everything works. The fact that this tool is free to use and provides comprehensive network device, server, and application monitoring features makes it a winner with businesses of all sizes. There are two versions of Nagios Core available as a free download.

The Standard Edition provides you with custom dashboards, summary reports, notification escalations, and configuration wizards. You can also download the day free trial. Related post: Nagios vs Zabbix. Icinga 2 is a network monitoring product that is brought to you by the same people that brought you Nagios. The Site24x7 Network Monitoring service is bundled in with other monitors for servers, applications, and Web assets.

You choose which services to track and set up performance thresholds that trigger alerts. This system is built into all network devices. It just needs an SNMP manager to request status information from the agent software that is loaded onto every switch and router by their manufacturers. Site24x7 fulfills that SNMP manager. SNMP includes a procedure that allows device agents to send a notification to the manager when it discovers a critical condition on the device that it is monitoring.

This message gets converted into a warning or an alert by the Site24x7 dashboard, depending on the severity rating marked on the message from the agent. Site24x7 monitors switches, routers, firewall appliances, power supplies, load balancers, wireless networks, cloud services, and WAN connections. The monitor focuses on connected hardware. A wider view of the Site24x7 package shows that the system also monitors other hardware, such as endpoints and servers.

It also tracks the performance of applications. A user behavior module in the package is of particular use to businesses that run websites. It includes real user monitoring to analyze typical buyer journeys and also synthetic web transaction monitoring , which simulates access to a website. The plans of Site24x7 are particularly strong on Web application monitoring and combine those services with network and connection testing services. Therefore, businesses that run websites would benefit from choosing this option.

Site24x7 offers a free network monitoring service. However, this is just a straightforward Ping-based uptime monitor for up to 50 URLs or servers. The cloud platform offers a range of system monitoring and management tools and these are packaged in editions. There are five editions in total:. All of these packages include the network monitoring service. Each of the Site24x7 plans is available on a day free trial.

However, this tool offers more than just a visual representation of your network. For a start, that network map is derived from an autodiscovery function. The system operates around the clock. The Intermapper implements autodiscovery and creates a rudimentary map to illustrate live performance status reporting. The network map operates as a menu to details on each of the devices on the network.

Click on an icon to see the activity on that particular node. You will see throughput data as well as status reports. You can set performance threshold levels on each of the metrics that the monitor tracks, such as CPU capacity or interface throughout.

This helps you monitor availability and other SLA-related conditions because the system will raise an alert if one of those thresholds gets tripped. You can set up the preferences in the system so that Intermapper will send you an email or a text message if an alert occurs.

Fortra Intermapper is a free tool, so it is a great option for businesses that are trying to tighten spending. This is an on-premises package and it is one of the few network monitoring systems that will run on macOS � it is also available for Windows and Linux. There is a free version available that will monitor up to five devices. The paid version has scaleable pricing that starts with ten devices.

You can choose between a subscription or a perpetual license. The paid version of Intermapper is offered on a day free trial. ExtraHop Reveal x is a network security monitoring system that is able to block the threats that it identifies. This tool uses AI to spot illogical or non-standard behavior that can indicate account takeover or an insider threat.

The service operates an anomaly-based detection method. ExtraHop Reveal x provides a constantly updated network inventory and will immediately spot unauthorized devices on the network. It also uses anomaly detection to identify intrusion and insider threats. The package provides important network detection and response NDR.

The ExtraHop service sets itself up by scanning the network and creating an inventory of all connected devices. The tool then operates as a packet sniffer and protocol analyzer, categorizing all traffic on the network. Response mechanisms in Reveal x can be set up to run automatically. These use orchestration to shut down threats by coordinating with third-party systems.

The ExtraHop platform is also available in an edition to protect cloud systems. ExtraHop Reveal x is probably a little too complex for the needs of small businesses. However, mid-sized and large companies will benefit from using this network security monitoring system. ExtraHop Reveal x is offered as a SaaS platform. It is also possible to get the system as a network appliance. You can examine ExtraHop by accessing a demo. Nagios Core is an open-source network monitor that has a web interface for monitoring network performance.

The GUI is color-coded so you can easily see elements that are unavailable or compromised. Nagios Core is one of the most reliable and respected open-source IT asset monitoring packages that will monitor networks, applications, and servers. This version of Nagios is free to use but you should also consider the paid Nagios XI edition. Track performance events through the alerts system, which sends out notifications by email and SMS.

View the Alert History section to see what alerts were created and when. The list of alerts is also color-coded making it easier to prioritize critical alerts. You can use APIs to integrate other network services. If you require more functions then you can also check the thousands of community plugins available on the Nagios Exchange to help you add additional functions. Therefore, it is a good option if you want to create your own monitoring application with a free data representation tool, such as Kibana or Prometheus, and feed in data from this tool.

Nagios Core is an excellent free network monitoring software however the setup can be slightly more hands-on than other products on this list. Catchpoint Network Experience is one of the four performance monitoring module on the cloud-based Catchpoint platform. The purpose of the Catchpoint system is to ensure the successful delivery of Web applications. The platform is offered as a single package rather than individual module purchases. Catchpoint Network Experience is intended for use as part of a suite of tools that ensures the successful delivery of Web pages and other Web applications.

Therefore, this tool is excellent for checking on the successful delivery of Web systems. It forms part of a monitoring chain that can quickly identify the root cause of performance issues.

The other modules in the Catchpoint platform are an application monitor and real user and synthetic monitoring tools for Web applications.

The network service checks on the performance of connections to the different servers that contribute to the successful delivery of a Web page and its contents. These other servers include content delivery networks CDNs , DNS servers, and serverless hosts of the microservices that get triggered by user interactions within a Web page. Businesses that host their own sites will be the most suitable customers for the Catchpoint system. However, those companies that use hosting services and CDNs to optimize delivery can also benefit from the Catchpoint service.

Although Catchpoint is a SaaS package, it does have an onsite element, which is called the Enterprise Node. This installs on one of your servers and manages the monitoring of your Web host and the network links between it and the outside world. It can also be run as a virtual appliance over Hyper-V or VMware. Catchpoint is available for a day free trial.

Icinga is an open-source network monitoring tool that monitors the performance of your network, cloud-service, and data center. Having the choice between the two gives you the power to monitor however you want. Icinga was developed as an improvement to Nagios and that background gives this system a big advantage over many of the other tools on this list. It is completely free to use, just like Nagios Core but, like Nagios XI , it has a useful graphical user interface that is delivered with pre-written screens but is also customizable.

Icinga is still compatible with Nagios plug-ins, so users of this system can enhance the monitoring tool from Nagios Exchange as well as with plug-ins from the much smaller Icinga Exchange. Icinga is a free, open-source monitoring package for networks, applications, and servers. You can log in to the GUI and use the dashboard to view an overview of performance management.

The dashboard displays whether there are any problems with performance or availability and color-codes them according to severity. Critical or Down network devices are marked in red.

Extensions or Icinga Modules , allow you to add more functions to the program. For example, the Icinga Module for vSphere allows you to monitor virtual machines and host systems.

There is a range of community-created plugins you can download for free from the Icinga Exchange. As it is open source, Icinga can be rewritten and its compatibility with Nagios means that it can be extended by the free plug-in library of that rival system. These features make it great for network engineers with programming skills who want to create a bespoke network monitoring tool. Overall, Icinga is a scalable solution that gives you control over how you manage your environment.

You can download the free trial version. Zabbix is an open-source free network monitoring tool that combines network, server, cloud, application, and services monitoring into one unified solution. The autodiscovery feature automatically locates network devices and adds them to be monitored. The tool can also detect configuration changes automatically so you can tell if a network device has been updated.

Zabbix is a free tool that can be expanded by templates. This service can monitor networks, servers, and applications and it uses SNMP to discover and monitor network devices. Network monitoring templates make it easy to configure the program for monitoring.

If you require more variety then you can access even more community templates form the Zabbix community site. To ensure that you can respond to alerts in time, Zabbix has a notification system.

Alerts are sent by email, SMS, messenger, jabber, or custom scripts to update you on evolving network security events. The notification content can be customized according to the recipient to make sure that the point of contact has everything they need to reopen intelligently.

Zabbix is a Linux-based on-premises package and its competitive edge against many of the tools on this list is that it is free to use. The screens for this system contain great data visualization features and they can be customized, which makes this one of the easiest tools to tailor without the need for technical abilities.

Zabbix is one of the top Linux network monitoring tools on the market. Autodiscovery and templates make the program straightforward to deploy.

The software for the package is installed on Linux , macOS , and Unix. You can download the software for free. Related post: Nagios vs Zabbix. It is common in many IT departments to combine the functions of server, application, storage, and network management, because all of these elements are interdependent on ensuring successful delivery of services to end-users. Combined software packages containing monitoring tools can cover all of these elements of company infrastructure.

A network monitoring tool can be a small command-line utility, or a vast suite of services. Networking technology involves many different specialist functions. You also have to ensure that the network is secure and that the environmental conditions in the building are suitable for your equipment.

In all, you need to keep on top of potential problems on the network and head them off. If failure does occur, try to catch it and fix it before it impacts the work of the users of the network.

If all measures fail, the help desk enables you to receive alerts from users to identify undetected problems. The tool has all the essential features you need to start monitoring your network including autodiscovery, dashboards, network maps, bandwidth monitoring, and an alerts system.

Network monitoring is concerned with the performance of the devices that operate the network, such as switches and routers. This activity is called network performance monitoring. The other main task of network monitoring examines traffic flow, this is called network traffic analysis.

While some network traffic analysis tasks involve identifying the applications that generate or receive traffic, those monitoring functions are not concerned with whether the applications are running properly. Application performance monitoring watches whether applications are able to get all of the resources they need in order to function properly. One of those resources is access to the network. All of the tools listed in this review are capable of monitoring networks remotely, that is, they can connect over the internet to another site and monitor all aspects of network performance.

Remote monitoring can be performed just as easily by software resident on a cloud server as it can by software resident on a server in the same building as the network administrator. There are two types of network monitors: packet sniffers, which sample network traffic, and network performance monitors, which collect network device reports. There are seven types of network monitoring systems:.

Traffic monitoring tools are called traffic analyzers or NetFlow monitors. While network performance monitors query network device statuses, traffic analyzers examine throughput data from network devices and also extract the headers of passing packets to quantify traffic by protocol, source, and destination.

An SNMP agent needs to be resident on each device. All network device manufacturers ship their products with an SNMP agent already installed. All that is lacking is the SNMP manager and this is the role that the network performance monitoring tool provides. It depends on your needs. Unless I misunderstood, SpiceWorks Network Monitoring has not been under development for several years. This was from a support person at SpiceWorks. We have been pretty happy with it but are looking for something else due to the lack of development.

Thank you for your comment. Thanks Tim, good list of tools. Thank you, Tim. It is the most complete list I saw. We actually tried many of the above. Some of them are pretty hard to use. Some become too expensive when your network grows� Some do not have important features we needed.

This one had all the features we needed out-of-box, also was easy to use. Yes, they have real-time monitoring, visualization and user defined alerts.

We started using it as simple desktop application for small size network and the same installation gradually grew into multi-user distributed system monitoring thousands of nodes including secure monitoring of our remote sites. The most cost effective solution They have free version as well.

This site uses Akismet to reduce spam. Learn how your comment data is processed. Start Your Free Trial. Menu Close. We are funded by our readers and may receive a commission when you buy using links on our site. Network monitoring is something that every connected organization should be doing.

However, with such a huge range of network monitoring software and tools, choosing the right one for your environment and budget can be challenging. In this post, we compare and rank the best network monitoring tools.

Tim Keary Network administration expert. Most network security issues arise when configurations are changed and SolarWinds NPM identifies these and can automatically resolve many. Alongside solid vulnerability scanning and advanced options to create and monitor policies, this is by far the top choice for network monitoring systems. Get a day free trial. Start a day free trial. This division of system monitors from a cloud platform provides device health checks and traffic flow analysis.

Start a a day free trial. Access a day free trial. Get access to the day free trial. Runs on Linux or a physical appliance. Available in free and paid versions for Windows, macOS, and Linux. ExtraHop Reveal x This network security monitoring service scans for threats and suspicious behavior in real time. Available as a SaaS package or a network appliance. Includes an alerts system and community plugins. Catchpoint Network Experience This module is part of a SaaS package of full stack monitoring tools that track the delivery of Web applications.

Nagios Core One of the top open-source network monitoring tools. Includes a dashboard view, alerts system, community plugins, and more. Icinga Open source network monitoring system with a DSL. Includes extensions. Our methodology for selecting network monitoring tools and software We reviewed the network monitoring tools and software market and analyzed the options based on the following criteria: An autodiscovery system to log all network devices A network topology mapper The ability to collect live network devices statuses by using SNMP A facility to analyze network performance over time Graphical interpretation of data, such as charts and graphs A free trial period, a demo, or a money-back guarantee for no-risk assessment A good price that reflects value for money when compared to the functions offered.

Pros: Designed with large and enterprise networks in mind Supports auto-discovery that builds network topology maps and inventory lists in real-time based on devices that enter the network Has some of the best alerting features that balance effectiveness with ease of use Supports both SNMP monitoring as well as packet analysis, giving you more control over monitoring than similar tools Uses drag and drop widgets to customize the look and feel of the dashboard Robust reporting system with pre-configured compliance templates.

Cons: This is a feature-rich enterprise tool, small LANs and operations may find it overwhelming. Key features: Automated setup Network mapping Resource utilization alerts Configuration management. Pros: The monitoring package is able to monitor many networks on different sites and unify their data The console is browser-based and can be accessed from anywhere This system offers out-of-the-box performance thresholds but it is also possible to create new rules Automated system asset inventory creation and maintenance Traffic analysis features in the higher plan.

Cons: This service is the only package offered by Auvik, so there are no related services to add on. Key features: Live network mapping and protocol analysis Alerts on performance thresholds that are adjusted through machine learning Correlation with data from SNMP and other sources. Pros: Autodiscovery to create a network asset inventory, which is constantly updated Monitoring for network devices through SNMP Network topology mapping Alert notifications by SMS, email, Slack, or PagerDuty Monitoring for traffic patterns, including activity within virtualizations A cloud-based system with storage space for metrics included.

Cons: A longer trial period would be nice. Unique feature Of the on-premises packages on this list, PRTG is probably the best option for response time monitoring for websites. Pros: Uses a combination of packet sniffing, WMI, and SNMP to report network performance data Full customizable dashboard is great for both lone administrators as well as NOC teams Drag and drop editor makes it easy to build custom views and reports Supports a wide range of alert mediums such as SMS, email, and third-party integrations into platforms like Slack Each sensor is specifically designed to monitor each application, for example, there are prebuilt sensors whose specific purpose is to capture and monitor VoIP activity Supports a freeware version.

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