The “Linux network monitoring” concept describes keeping monitors on and evaluating a network’s performance, capacity, and overall health.

Specialist tools and software capture, measure, and analyze data on network traffic, bandwidth utilization, latency, and connected devices.

Administrators can monitor everything from routers and switches to servers and endpoints for issues, security breaches, and slowdowns. This preventive method accelerates fixing problems, improving performance, and strengthening security.

Linux network monitoring tools typically provide real-time insights, historical data analysis, and visualization to assist system administrators in making educated decisions, guaranteeing network stability, and keeping communication channels among their organization’s interconnected devices open.

Linux network monitoring tools maintain efficient network operation, help diagnose problems, and enhance security by collecting, analyzing, and interpreting data about the network.

These programs use SNMP (Simple Network Management Protocol) and similar protocols to check network gadgets for data, including current device status, bandwidth use, and error rates. Agents can be deployed on network devices to gather and send data to a central monitoring server.

Data is processed and examined to reveal patterns, irregularities, and sluggish areas. Intuitive graphical interfaces can present this information, allowing managers to better understand the network’s current and past states.

Administrators can be notified when thresholds are surpassed, allowing for more proactive management. Issues including excessive CPU usage, insufficient disk space, and unusual network activity can all be flagged with the help of these notifications.

For security, you can analyze the contents of packets with the help of several tools that do deep packet inspection. In addition, incident response platforms can be integrated with other systems, enabling instantaneous action when anomalies or breaches are identified.

Linux network monitoring tools help administrators keep their networks running effectively, keep their data secure, and fix any problems that arise quickly.

• Zabbix: Enterprise-grade tool offering real-time monitoring, data visualization, and alerting for network performance and application metrics.
• Nagios: A versatile monitoring tool that provides comprehensive alerts and reports for servers, switches, applications, and services.
• Wireshark: Popular network protocol analyzer offering detailed inspection of network traffic in real-time.
• Monitorix: Lightweight monitoring tool featuring a web-based interface for tracking system resources and network traffic.
• Tcpdump: A command-line packet analyzer for capturing and analyzing network packets on the fly.
• Bmon: A bandwidth monitoring tool that provides real-time statistics and graphs for network interfaces.
• PRTG Network Monitor: Comprehensive monitoring solution offering advanced network, bandwidth, and application monitoring with customizable dashboards.
• Cacti: Graphing tool for network performance data, supporting advanced template and graph customization.
• OpenNMS: Open-source platform providing comprehensive network monitoring and alerting for large-scale enterprise networks.
• Zenoss: IT monitoring platform offering network, server, and application monitoring with real-time analytics.
• ManageEngine: Integrated IT management software offering network, server, and application monitoring.
• Prometheus: Open-source monitoring and alerting toolkit designed for reliability and scalability.
• Nmap: Network discovery and security auditing tool for scanning and mapping networks.
• Monit: Utility for managing and monitoring Unix systems, providing alerting and process management.
• Grafana: A visualization tool for monitoring and analyzing time-series data, supporting multiple data sources.

Linux Network Monitoring Tools	Features	Stand Alone Feature	Pricing	Free Trial / Demo
1. Zabbix	1. Comprehensive Monitoring 2. Alerting and Notifications 3. Flexible Configuration 4. Security and Authentication 5. Automation and Integration	Real-time network and server performance monitoring.	Free, open-source	No
2. Nagios	1. Remote Plugin Execution 2. Notifications Acknowledgment 3. Service Dependencies 4. User Roles and Contacts 5. Scheduled Downtime	Comprehensive network and system monitoring tool.	Free, paid plugins	No
3. Wireshark	1. Real-Time Updates 2. Community Support 3. Protocol Analysis 4. Packet Inspection 5. Statistical Analysis 6. Graphical Views	Packet analyzer for network troubleshooting and analysis.	Free, open-source	No
4. Monitorix	1. Community Support 2. Protocol Analysis 3. Packet Inspection 4. Statistical Analysis 5. Graphical Views	Lightweight system and network monitoring tool.	Free, open-source	No
5. Tcpdump	1. Real-Time Monitoring 2. Protocol Analysis 3. Command-Line Interface 4. Auto-Discovery 5. Open Source	Command-line packet analyzer for network traffic.	Free, open-source	No
6. Bmon	1. Terminal Compatibility 2. Network Protocol Support 3. Interactive Interface 4. IPv4 and IPv6 Support 5. Graphical Output	Bandwidth monitoring and diagnostic tool.	Free, open-source	No
7. PRTG Network Monitor	1. Sensor-Based Monitoring 2. Alerting and Notifications 3. Multi-Tenancy Support 4. Service Level Agreement (SLA) Monitoring 5. Failover Cluster	All-in-one network monitoring and visualization.	Free up to 100 sensors	Yes
8. Cacti	1. Remote Data Gathering 2. Custom Data Sources 3. Customizable Polling Intervals 4. Threshold Notification 5. Data Collection 6. Community Support	Network graphing solution using SNMP data.	Free, open-source	No
9. OpenNMS	1. Fault Management 2. Topological Discovery 3. Customizable Dashboards 4. Service Level Agreement (SLA) Monitoring 5. Event Management	Open-source network monitoring and management platform.	Free, open-source	No
10. Zenoss	1. Custom Dashboards 2. Reports and Analytics 3. Extensible Architecture 4. Cloud and Virtualization Monitoring 5. Multi-Tenancy Support	Unified IT monitoring for hybrid environments.	Free, enterprise edition paid	Yes
11.ManageEngine	1. User and Access Management 2. Network Configuration Management 3. Firewall Log Analysis 4. Log Management 5. Network Troubleshooting	Comprehensive network, server, and application monitoring.	Paid, custom pricing	Yes
12. Prometheus	1. Query Language (PromQL) 2. Histograms and Summaries 3. Cloud-Native Monitoring 4. Relabeling and Filtering 5. Dynamic Configuration	Time-series database and monitoring system.	Free, open-source	No
13. Nmap	1. Timing and Performance Options 2. Firewall Evasion Techniques 3. OS Fingerprinting 4. Open Source and Community Support 5. Scriptable Interaction	Network scanning and security auditing tool.	Free, open-source	No
14. Monit	1. Configuration Check 2. Lightweight Footprint 3. File and Directory Monitoring 4. Customizable Monitoring Intervals 5. System Status Reporting	Lightweight tool for monitoring and managing processes.	Free, open-source	No
15. Grafana	1. Query Language (PromQL, SQL) 2. Sharing and Embedding 3. Community and Ecosystem 4. Extensible and Customizable 5. Data Source Integration 6. Dashboard Creation	Data visualization and monitoring with customizable dashboards.	Free, paid enterprise options	Yes

1. Zabbix

Zabbix is an open-source network monitoring tool for Linux that provides real-time monitoring of servers, networks, and applications, offering detailed insights into performance and availability.

It supports various data collection methods, including SNMP, JMX, IPMI, and custom scripts, allowing flexible monitoring of diverse systems and environments.

Zabbix offers customizable dashboards, alerting, and reporting. Users can set thresholds and receive notifications for any issues or anomalies detected in the network.

The platform includes built-in visualization features, such as graphs and network maps, helping administrators quickly analyze trends, track issues, and optimize network performance.

Why Do We Recommend It?

• Zabbix can track metrics, including CPU usage, memory consumption, disk space, network traffic, and more.
• Zabbix monitors various devices and technologies, including servers, network devices, virtual machines, cloud resources, apps, etc.
• Depending on the requirements of the monitored device, Zabbix can employ both agentless monitoring (through protocols such as SNMP, ICMP, and so on) and agent-based tracking (via the Zabbix agent).
• When specified conditions are satisfied (e.g., CPU utilization surpasses a certain threshold), Zabbix allows you to establish triggers based on collected data and set up alerting systems via email, SMS, and other methods.

Pros	Cons
Supports Linux, Solaris, and FreeBSD	Zabbix must include the Amazon RDS.
Trusted in user authentication.	The UI/UX needs to be more catchy and detailed.
Nice web interface.	Zabbix must provide more templates for rich monitoring.
Monitor both servers and network devices	Resource-intensive on the monitoring server.

Zabbix – Trial / Demo

2. Nagios

Nagios is an open-source Linux network monitoring tool that provides comprehensive monitoring of network services, host resources, and system metrics. It ensures the detection and resolution of issues before they impact users.

The tool offers extensive plugin support, allowing users to monitor various applications, services, and systems and customize monitoring solutions to meet specific network requirements.

Nagios features robust alerting and notification systems. These systems enable administrators to receive real-time alerts via email, SMS, or other methods, ensuring timely responses to critical network issues.

With a user-friendly web interface, Nagios provides detailed status information, historical reports, and performance graphs, helping users to analyze trends, plan capacity, and maintain optimal network performance.

Why Do We Recommend It?

• Nagios may track the availability and health of network hosts (devices) and services (applications, processes, and so on).
• Nagios uses plugins to carry out monitoring checks.
• Nagios provides alerting and notification techniques that can be customized.
• Nagios allows you to select different notification recipients or methods based on the severity or duration of a problem.

Pros	Cons
Free and open-source	Nagios can’t monitor network throughput
Scalable and extensible	Can’t monitor the bandwidth issues and network availability
Supports a wide range of protocols and devices	offers several configuration files that create problems configuring all files
Easy to use and configure	Nagios core has a confusing interface

Nagios – Trial / Demo

3. Wireshark

Wireshark is a powerful open-source network protocol analyzer that allows users to capture and interactively browse the traffic running on a computer network. This makes it ideal for network troubleshooting and analysis.

It supports deep inspection of hundreds of protocols and live capture from various network interfaces, providing detailed information about each packet, including its source, destination, and protocol details.

Wireshark’s user-friendly interface and advanced filtering capabilities enable users to easily search for and identify specific traffic or issues, making it a valuable tool for beginners and experts.

It is widely used for network performance optimization, security auditing, and educational purposes. It supports multiple platforms, including Linux, Windows, and macOS, and offers comprehensive documentation and community support.

Why Do We Recommend It?

• Wireshark can record and analyze live network packets and packet capture files (PCAP) to show precise information about each package, such as source and destination addresses, protocol information, and payload data.
• Wireshark has extensive filtering and search tools that allow you to zero in on specific packets based on parameters such as source or destination IP addresses, protocols, ports, and more.
• Wireshark can support Ethernet, IP, TCP, UDP, HTTP, HTTPS, DNS, DHCP, SNMP, and numerous other network protocols.
• Wireshark decodes binary data in network packets and displays it in a human-readable format, allowing you to better comprehend network traffic structure and content.

Pros	Cons
Packet-level analysis	Steep learning curve
Platform compatibility	Overwhelming amount of data
Wide protocol support	Limited to wired network analysis
Live capture and offline analysis	Privacy and legal considerations

Wireshark – Trial / Demo

4. Monitorix

Monitorix is an open-source, lightweight monitoring tool specifically designed for Linux systems, offering comprehensive monitoring of system resources, network traffic, and various services to ensure optimal performance and uptime.

It features an intuitive web-based interface that provides detailed graphs and visualizations of key metrics, such as CPU usage, disk activity, memory consumption, and network bandwidth, aiding in quick diagnostics.

Monitorix supports extensive logging and alerting capabilities. Administrators can set thresholds and receive notifications for unusual activity or potential issues, allowing for proactive system management.

The tool is easy to install and configure, with customizable settings to monitor specific services and applications, making it a versatile solution for small to medium-sized Linux-based environments.

Why Do We Recommend It?

• Monitorix continuously gathers and displays real-time data on numerous system and network parameters, providing you with an instant perspective of your system’s health and performance.
• Monitorix tracks CPU usage, memory consumption, storage space, network traffic, and other system resources.
• Monitorix displays monitoring data in a web-based graphical interface, making it simple to visualize system performance trends, changes, and anomalies.
• Monitorix is compatible with various platforms and operating systems, including Linux, BSD, and macOS. It can monitor both real and virtual environments.

Pros	Cons
Low Resource Consumption	Dependency on System Resources
Customizable Alerts	Interface Customization
Comprehensive Monitoring	Less Feature-Rich
Open Source	Support and Updates

Monitorix – Trial / Demo

5. Tcpdump

Tcpdump is a command-line packet analyzer for Unix-like operating systems. It allows users to capture and display TCP/IP and other packets being transmitted or received over a network.

It provides powerful filtering capabilities using the BPF (Berkeley Packet Filter) syntax, enabling users to focus on specific types of network traffic for detailed analysis.

Tcpdump supports live packet capture and can also read packet files saved in the pcap format, making it versatile for real-time monitoring and post-event analysis.

Due to its flexibility and the granular level of control it offers over data capture, it is widely used for network troubleshooting, security analysis, and protocol implementation testing.

Why Do We Recommend It?

• Tcpdump captures network packets as they pass via a network interface in real-time, producing a snapshot of the delivered data.
• It can capture and analyze many network protocols, including Ethernet, IP, TCP, UDP, ICMP, HTTP, DNS, and more.
• Tcpdump enables packet filtering using BPF (Berkley Packet Filter) syntax.
• Tcpdump displays collected packets in a human-readable format, including packet headers, payload data, and other information.

Pros	Cons
Linux default packet capture	Less user-friendly than alternatives
Simple syntax for CLI-friendly learning	A complex query language for filtering
Open-source with a dedicated community	A complex query language for filtering
Free and open-source software	Slow, especially when capturing large amounts of data.

Tcpdump – Trial / Demo

6. Bmon

Bmon (Bandwidth Monitor) is a lightweight, command-line network monitoring tool for Linux. It provides real-time visualization of network bandwidth usage and detailed statistics on network interfaces.

The tool features an intuitive text-based interface. It displays data rates, packet counts, and error statistics for both incoming and outgoing traffic, making it easy to monitor network performance.

Bmon supports customizable output formats, allowing users to view data in various formats such as ASCII graphs, numerical tables, and CSV exports, facilitating detailed analysis and reporting.

It is ideal for system administrators and network engineers who need a quick and efficient way to monitor network activity on Linux systems without the overhead of more complex tools.

Why Do We Recommend It?

• BMON monitors network bandwidth utilization in real time, allowing you to see immediate changes in network traffic.
• It can monitor and present statistics for several network interfaces, offering insight into traffic on separate network segments.
• Its graphs display bandwidth utilization data, data rates, and usage trends.
• It uses colorization to indicate different levels of network traffic, making it easy to identify periods of high or low activity.

Pros	Cons
Multiple Interfaces	Less Comprehensive Features
Simple Interface	Steep Learning Curve for Non-Tech-Savvy Users
Customization	Lack of Historical Data
Integration with Other Tools	Not Suitable for Large-Scale Environments

Bmon – Trial / Demo

7. PRTG Network Monitor

PRTG Network Monitor is a versatile network monitoring tool for Linux systems. It offers real-time monitoring, bandwidth analysis, and detailed insights into network performance and health.

The tool provides a wide range of sensors for monitoring CPU usage, disk space, and network traffic on Linux devices, ensuring comprehensive visibility into your Linux infrastructure.

PRTG’s user-friendly interface and customizable dashboards make it easy for administrators to set up, configure, and monitor Linux systems, allowing for quick issue identification and resolution.

It includes features like alerting and reporting, which enable proactive network management by notifying administrators of potential issues and providing detailed reports for analysis and decision-making.

Why Do We Recommend It?

• PRTG can monitor many network devices, such as servers, routers, switches, firewalls, printers, etc.
• It monitors devices and services in real time, displaying current status and performance information.
• Its customizable dashboards allow you to construct visual representations of monitored data using graphs, charts, maps, and gauges.
• It provides adaptable alerting and notification techniques.

Pros	Cons
Full network monitoring with IP, MIB, and OID	Lacks advanced packet analysis
Complete network monitoring with IP, MIB, and OID	Challenging pricing for smaller shops.
An all-in-one tool eases the job of the ADMS administrator.	Automated backup solutions are desired.
Comprehensive monitoring with custom sensors	Complex to set up and configure

PRTG Network Monitor – Trial / Demo

8. Cacti

Cacti is an open-source web-based tool for network and system monitoring. It can monitor servers and network devices such as routers and switches. Cacti is a PHP-based front-end application for RRDtool. 

A router’s or switch’s network traffic and bandwidth usage are tracked by Cacti using the SNMP protocol. Cacti uses the data from a MySQL database to populate graphs showing CPU load and network bandwidth utilization. 

Before deploying the Cacti server itself, several Cacti dependencies must be installed and configured. Cacti is not restricted to using SNMP data. 

Any script that runs from your Linux server’s command prompt, including Perl scripts, standard *nix bash scripts, and others, can be fed to Cacti by providing the paths to the hand or commands. 

The data that Cacti collects in a cron job is filled with a MySQL database or the round-robin archives.

Why Do We Recommend It?

• Cacti is an expert at graphing and visualizing data over time.
• It gathers data from various sources using protocols such as SNMP (Simple Network Management Protocol) and other data-collecting methods.
• It defines data sources and graphing settings using templates, making deploying consistent monitoring configurations to various devices easy.
• It has many pre-configured graph templates for standard network devices and metrics, making it easier to set up popular devices.

Pros	Cons
Straightforward traffic plotting for networks	Customization demands substantial man-hours.
Optimized database management	Outdated plugins in the newer Cacti version.
Single-page access to all information.	Improvements are needed in the search criteria.
Generate graphs and reports that are easy to understand.	Lack of support for all types of network devices.

Cacti – Trial / Demo

9. OpenNMS

An open-source enterprise network management tool is called OpenNMS. Using SNMP, OpenNMS gathers data from remote nodes and assists network administrators in monitoring crucial services on distant machines. 

You can register to join OpenNMS’s very active community and discuss your issues there. OpenNMS is a platform for enterprise-grade network service management, used to manage telecom and business networks globally.

You can monitor a variety of gadgets and services with OpenNMS because it supports several monitoring protocols, including SNMP, ICMP, and JMX. Comprehensive fault, performance, traffic, and alarm generation are all provided by OpenNMS in one location. 

Both Windows and Linux have simple installation processes for OpenNMS. The system should have a dual-core CPU, 2 GB of RAM, and 20 GB of disk space. Business use recommends higher specs for improved performance.

Why Do We Recommend It?

• OpenNMS can automatically find network devices, services, and applications, minimizing manual configuration and assuring up-to-date monitoring.
• It monitors and handles device status changes, service outages, and performance deterioration, sending real-time notifications and alarms.
• It provides configurable alarm notifications and escalation via various channels like email, SMS, SNMP traps, etc.
• It monitors the availability and performance of services and applications, ensuring critical systems are operational and responsive.

Pros	Cons
User-friendly, intuitive GUI.	High network traffic with OpenNMS.
Abundant add-ons for download.	Challenges with MIB importing
Modern UI re-arrangement is possible.	Delayed alerting issues
Supports a wide range of devices and protocols	Modern UI re-arrangement is is possible.

OpenNMS – Trial / Demo

10. Zenoss

Zenoss is a powerful Linux network monitoring tool that offers real-time visibility into network performance and infrastructure. It helps businesses proactively manage and resolve network issues.

The tool integrates seamlessly with various IT environments, providing comprehensive monitoring for servers, storage, applications, and network devices, ensuring a unified view of the entire infrastructure.

Zenoss features advanced analytics and automated workflows, enabling users to detect anomalies, identify root causes, and automate responses, reducing downtime and improving operational efficiency.

It supports both on-premises and cloud deployments, making it flexible and scalable for businesses of all sizes. Its focus is on reducing the complexity of IT management.

Why Do We Recommend It?

• Zenoss provides a unified platform for monitoring various IT resources, such as servers, networks, applications, virtualization, storage, and cloud services.
• It can automatically locate and map IT assets and dependencies, delivering a real-time view of the relationships between devices and services.
• It monitors events and alarms to assist you in detecting and responding to issues as quickly as possible.
• It offers a variety of alerting and notification options. You can set alert levels and situations and receive messages via numerous channels.

Pros	Cons
Customizable Dashboards	Resource Intensive
Event Management	Licensing and Costs
Community and Support	Steep Learning Curve
Unified Monitoring	User Interface

Zenoss – Trial / Demo

11. ManageEngine

ManageEngine offers comprehensive Linux network monitoring tools. These tools provide real-time visibility into network performance, including bandwidth usage, traffic analysis, and device status, helping administrators ensure optimal network functionality.

These tools support monitoring for various network devices and services, offering customizable alerts and detailed reports. They enable proactive management of potential issues and ensure network reliability.

ManageEngine’s Linux monitoring solutions include features like network mapping, automated discovery, and performance baselines, which assist in understanding and maintaining the health of network infrastructure.

The tools are user-friendly, with an intuitive interface and integration capabilities with other ManageEngine products. Thus, they make it easier to manage and monitor complex network environments from a single console.

Why Do We Recommend It?

• A comprehensive IT service management (ITSM) system that assists businesses in streamlining and automating their IT help desk and service request processes.
• Network monitoring and management solution with full monitoring functions for network devices, servers, applications, and services.
• Complete application performance monitoring (APM) solution for monitoring the performance of mission-critical applications.
• A centralized endpoint management and security solution that allows enterprises to manage and secure their endpoints.

Pros	Cons
Device diversity, broad compatibility	Complexity overwhelms new ManageEngine users.
Personalized dashboards with insights.	Updates and bug fixes delay
Archives data for trend analysis.	Java reliance, security concerns, and configuration
Virtualization monitoring for VMware and Hyper-V	Limited customization options in ManageEngine.

ManageEngine – Trial / Demo

12. Prometheus

Originally developed at SoundCloud, Prometheus is an open-source system monitoring and alerting toolkit. Numerous businesses and organizations have used it since its launch in 2012, and the project has a thriving developer and user community. 

Now that it is an independent open-source project, Prometheus is looked after by no one particular business. The metrics in Prometheus are collected and stored as time series data, with timestamps and optional key-value pairs called labels.

Prometheus can record any purely numerical time series. It is built with dependability in mind, so it can quickly identify issues during an outage. 

Similar in concept to Google’s Borgmon monitoring system, Prometheus can collect hundreds of thousands of metrics per second with a relatively small system. Prometheus uses its technology to do so quickly when reporting time-series data sets.

Why Do We Recommend It?

• Prometheus collects time-series data from various sources, including applications, services, and infrastructure components.
• It employs a multi-dimensional data model that enables you to identify and arrange metrics for quick querying and analysis.
• It saves time-series data in its efficient and long-lasting storage structure, enabling quick querying and retrieval.
• It collects data from monitored targets using a pull-based technique.

Pros	Cons
Versatile monitoring with pull/push exporter	Cumbersome manual pruning of data.
Cloud platform integration for Prometheus	Exporters are required, and quality varies.
Reliable, low-resource monitoring	Prometheus alerting system limitations.
Active development keeps Prometheus current.	There is no centralized management for Prometheus.

Prometheus – Trial / Demo

13. Nmap

Globally, many security experts use Nmap, also known as Network Mapper, which Gordon Lyon maintains. Command line (CLI) usage powers the utility, which runs on Linux and Windows.

Managing service upgrade schedules, network inventory, and host or service uptime monitoring are tasks that many system and network administrators find helpful. 

Using innovative methods, Nmap analyzes IP packets to discover network hosts, services, OS types, packet filters, and more.

Nmap offers insightful information about a network by disclosing crucial information about hosts, their services, and security measures. Without complex commands or configurations, Nmap enables you to map out a network quickly. 

Through its scripting engine, Nmap can also execute simple commands and write complex scripts. It has gained popularity after appearing in hit television shows like Mr. Robot and films like The Matrix.

Why Do We Recommend It?

• Nmap can help you determine active network hosts by issuing and analyzing ICMP (ping) and ARP requests.
• It can search for open ports and services on a target host and provides various scanning techniques, such as TCP connect, SYN/ACK, and UDP scans.
• It can detect open ports and attempt to identify service versions, assisting you in understanding the software and versions in use.
• Based on patterns in network responses, Nmap can attempt to determine the operating system of target hosts, assisting in network mapping.

Pros	Cons
Network Mapper searches subdomains and DNS.	Complex custom scripts for NSE.
Nmap scans massive networks efficiently.	GUI fronts may lack features.
Network Inventory, Network Mapping, maintenance, and asset management	There is no real-time monitoring in Nmap.
New server identification and network audit.	Stealthy scans demand expertise.

Nmap – Trial / Demo

14. Monit

Monit is a lightweight, open-source monitoring tool designed for Linux systems. It provides real-time monitoring of system processes, files, directories, and network services to ensure optimal performance.

It offers automated alerts and recovery actions, such as restarting failed services or running custom scripts, allowing for proactive management of system issues and minimizing downtime.

Monit features a web-based interface, enabling easy access and configuration of monitoring settings and viewing system status and logs from any web browser.

The tool is highly customizable, allowing users to set specific monitoring conditions and thresholds. This versatility makes it versatile for various use cases, from simple process monitoring to complex network services.

Why Do We Recommend It?

• Monit can monitor and manage the system’s processes, services, and daemons.
• It monitors system resource utilization, such as CPU, memory, and disk space, and allows you to establish thresholds and execute actions based on resource consumption.
• It can detect illegal or unexpected changes by monitoring files and directories for modifications, alterations, or size limitations.
• It can keep track of network services and ports to verify that they are up and running.

Pros	Cons
All-around monitoring solution for everything.	Missing features for monitoring virtualization.
Lightweight, low resource overhead, Monit.	Updates are less frequent than competitors.
User-friendly web interface	Monit lacks native historical data storage.
Compatible with diverse OS environments.	Compatibility issues are possible with specific Linux setups.

Monit – Trial / Demo

15. Grafana

Use the open-source observability platform Grafana to visualize metrics, logs, and traces gathered from your applications.

Grafana is a cloud-native option for quickly putting together data dashboards that allow you to examine and analyze your stack.

ElasticSearch, Prometheus, InfluxDB, and conventional relational database engines are just a few of the data sources that Grafana can connect to. 

Complex dashboards can be produced using these sources to choose pertinent fields from your data. 

Graphs, heat maps, and histograms are just a few visualization elements that dashboards can include. Highly visual dashboards let you interact with Grafana.

A modular panel system connecting to your data sources allows you to create each dashboard. 

You can track your entire stack from one view using a single dashboard that can surface metrics from multiple sources simultaneously.

Why Do We Recommend It?

• Grafana works with various data sources, including popular databases, monitoring systems, cloud platforms, and time-series databases like Prometheus, InfluxDB, Elasticsearch, etc.
• It includes a query editor that allows you to design flexible queries using data source-specific query languages, such as PromQL for Prometheus.
• It allows you to build customizable dashboards by incorporating panels, charts, graphs, and other visualizations.
• It offers various visualization options, including line charts, bar graphs, pie charts, gauge charts, heatmap charts, and more.

Pros	Cons
Open source and free to use	The steeper learning curve for beginners.
Scalable and capable of displaying data from various sources	Limited native alerting capabilities.
Easily navigable and with a friendly interface	Resource-intensive for large-scale data.
Supports a wide range of data visualization options	Plugin compatibility and stability challenges.

Grafana – Trial / Demo