introduction
Monitoring bandwidth and network performance is crucial to avoid malfunctions and ensure network stability. General usage reports help determine bandwidth needs, while more detailed, real-time, process-level reports help identify sources of high bandwidth usage and alert users to spikes in usage or unusual activity.
There are many different tools to monitor network traffic on oneLinux-Server, allowing users to identify the cause of a slow network and quickly troubleshoot network issues.
This guide lists the best Linux CLI and GUI network monitoring tools.
requirements
- Access to a user account with
sudoor root privileges. - For CentOS and RHEL Linux, EPEL (additional packages forEnterprise Linux)Repository.
- APackage-Managertool (yes,dnf, orfit).
- Access a terminal window (ctrl-Alt-T).
Command line Linux network monitoring tools
command linenetwork monitoringThe tools are an excellent choice for non-GUI Linux servers because they provide metrics on the command line. Tools often provide a quick overviewnetwork bandwidthmetrics.
However, to get a detailed graph of network usage over a period of time, GUI tools might be a better option.
The following sections list the best CLI-based Linux network monitoring tool.
Monitoring:CentOS, Rocky Linux and other RHEL based systems need the EPEL repository to install the tools listed in the article. Install the EPEL repository by running the following commands:
sudo yum -and install epil-releaseyum repolistiftop - Displays bandwidth usage
Öiftopcommand is similar toHeadmastercommand to monitorCPU usage.iftopprovides a real-time view of bandwidth usage by individual connection. It also generates an overview of the amount of bandwidth used.
The utility is also ideal for checking network speeds. A limit ofiftopis that traffic is not tracked by process ID (PID).
To installiftop, run:
RHEL/CentOS/Rock-Linux
yum install iftop -yDebian/Ubuntu
sudo apt install iftop
nload - Displays network usage
loadis a command line utility for monitoring network traffic. This tool only reports incoming and outgoing traffic. The output includes a chart, useful for a quick overview of network traffic.
However,loadhas the disadvantage that the traffic is not displayed by PID orPower outlet.
To installload, run:
RHEL/CentOS/Rock-Linux
yum install nloadDebian/Ubuntu
sudo apt install nload
NetHogs - Monitor network traffic bandwidth
NetHogsis another tool similar toohigher command. The utility generates real-time reports on network usage. The main benefit of NetHogs is that it sorts the data by process/application and usage, making it a great utility for tracking bandwidth spikes (if started in time).
To installNetHogs, run:
RHEL/CentOS/Rock-Linux
yum -y install nethogsDebian/Ubuntu
sudo apt install nethogs
bmon - bandwidth monitor and rate estimator
bmonmonitors bandwidth usage and maintains an estimate of execution rate. It provides usage for each device individually, allowing users to track bandwidth across multiplenetwork adapter.
bmoncollects network statistics and provides user-friendly output. Another positive feature is that the output includes a chart that provides an overview of bandwidth usage.
To installbmon, run:
RHEL/CentOS/Rock-Linux
yum -y install bmonDebian/Ubuntu
sudo apt install bmon
vnStat - monitor network traffic
vnStatworks by running a daemon that collects and logs bandwidth data. It reads dataKernto keep resource consumption low. The tool can be run in real time by specifying the-EUPossibility. The main feature ofvnStatare persistent logs - while the daemon is running, it collects and stores logs of bandwidth usage.
ÖvnstateThe command can be used to display usage statistics and is best used for statistical reports. To installvnStat, run:
RHEL/CentOS/Rock-Linux
yum -y install vnstatDebian/Ubuntu
sudo apt install vnstat
iPerf/iPerf3 - Network bandwidth measurement tool
iPerfis a tool that monitors network bandwidth by protocol, such asTCP,UDPand SCTP. This tool is best suited for optimizing and maximizing network performance for a specific protocol.
LikeiPerfThe limitation of is that it requires a server and a client for testing, which rules it out as a candidate if you only need to measure network speeds.
Monitoring: loadeiftopare excellent command line tools for testing network speed. For more information about other options, see our articleHow to test network speed on Linux via CLI.
To installiPerf, run:
RHEL / CentOS / Rocky-Linux
yum -and install iperf3Debian/Ubuntu
sudo apt install iperf3
In the example aboveiPerf3runs in server mode and waits for connections.
Netperf - network bandwidth test
NetperfThis is comparable toiPerfrelated to testing network performance. The tool helps to monitor network bandwidth using Unix domain sockets, TCP, SCTP, DLPI and UDP over BSD sockets.
IfiPerf,NetperfIt also requires a server and a client for testing. Its main features include the numerous predefined tests to measure performance or data transfer speeds.
To installNetperf, run:
RHEL / CentOS / Rocky-Linux
sudo dnf install netperfDebian/Ubuntu
sudo apt install netperf
IPTraf - an IP network monitor
IP trafficis an easy-to-use Ncurses-based network monitoring tool. The utility is suitable for tracing incoming and outgoing network traffic, monitoring IP traffic and getting general interface network information and detailed interface statistics.
Its main advantages are the numerous configuration possibilities and an intuitive user interface that makes it easy to get the necessary network information.
To installIPTraf, run:
RHEL / CentOS / Rocky-Linux
sudo dnf install iptrafDebian/Ubuntu
sudo apt install iptraf
cbm - Farbbandbreitenmesser
The ribbon width meter (cbm) is a small command line utility that shows the current network traffic on all devices connected to the network. Curse-based output is displayed in color, showing each network interface, received, sent, and total bytesByte.
To installcbm, run:
RHEL / CentOS / Rocky-Linux
sudo dnf install cbmDebian/Ubuntu
sudo apt install cbm
Linux network monitoring GUI tools
The following tools areGUI based, which offers a more robust monitoring suite than CLI-based ones. The output often includes visually organized charts and statistics, making it easy to monitor your overall network bandwidth and performance at a glance.
Nagios Core - Monitors systems, networks and infrastructure
Nagios-Kern is an open-source, feature-rich and free bandwidth monitoring application that also offers a paid version with official support. The tool's interface is web-based and can monitor various services like HTTP, POP3, and moreSMTP.
Another great feature is the automatic notifications in case of problems, allowing users to solve them as soon as they arise. Nagios also offers bandwidth monitoring on network devices like switches and routers via SNMP, making it easy to find potential bandwidth consumers.
In addition, Nagios helps monitor bandwidth usage per port and quickly detects network failures and protocol errors.
Monitoring:Get to know the differencesIMAP, POP3 und SMTP.
Zabbix - Application and network monitoring tool
ZabbixGenericNameis a free, open-source, and feature-rich network monitoring application based on a server-client model. Its web-based interface provides real-time network, server, device and application monitoring.
The generated data logs visually represent network performance or device utilization metrics and can be used to track and improve network performance. The app is great for both small and large business applications.
Zabbix supports most standard network protocols such as HTTP,FTP, SMTP, IMAP and others without installing additional software on monitored devices.
Cacti - Network monitoring and charting tool
cactiis a web-based network monitoring tool written in PHP with an intuitive and user-friendly interface. Its main benefit is comprehensive data collection and reporting on network bandwidth and other metrics such as user access and permissions.
Cacti collects data using scripts and creates clear charts and graphs that allow users to quickly identify any spikes in bandwidth usage or network issues. All data is stored in MySQL databases and used to create custom charts.
Local 24/7 – NetFlow Analyzer
24x7 Website NetFlow Analyzeris a cloud-based network monitoring program that provides a wide range of functions for multiple devices in a network. It implements various technologies like NetFlow, sFlow, and J-Flow that allow users to collect statistics for various applications and devices.
The tool can monitor source and destination devices, their interfaces and traffic flow. Users can configure thresholds for all monitored metrics and receive alerts when thresholds are exceeded.
NetFlow isn't free, but it offers a fully-functional 30-day free trial.
ManageEngine - NetFlow-Analyzer
Analyze NetFlow with ManageEngineis a flow-based network monitoring tool that provides traffic pattern analysis and bandwidth spike detection. Users can identify network problems by analyzing traffic patterns and getting device, interface or application details.
Analyzer provides real-time monitoring and troubleshooting, making it easy to spot network problems as they arise. The utility also offers customizable reports that are available with just a few clicks. Supported streaming technologies are NetFlow, sFlow, IPFIX, Netstream, J-Flow and AppFlow.
In terms of price, the app comes in two flavors –professionalePursue. The main difference is in the number of streams per second and the number of supported networks. There is also a 30-day free trial for both versions. The free version is limited to monitoring up to two interfaces.
SolarWinds – NetFlow Traffic Analyzer
ÖNetFlow Traffic Analyzer von SolarWindsis a network monitoring program with a wide range of monitoring functions and a scalable number of nodes in the network. The utility provides interactive, visualized data views with searchable, color-coded visual data, making it intuitive and easy to use.
In addition to network monitoring, NTA allows users to monitor bandwidth and receive alerts when there are traffic problems or a device is faulty. One of its main functions is to monitor port 0 for unusual traffic, prevent attacks and secure the network.
The application comes with a fully functional 30-day free trial period, after which users can choose between two license types –enrollment, from €875, orEternal, ab 1585 €.
Darkstat - Captures network traffic
dark state is a lightweight and simple web-based network monitoring utility that can also be run from the command line. The tool works in real time, analyzes traffic and displays network statistics in graphical formHTTPor no prompt.
Darkstat collects information about system traffic flow and computer usage statistics and outputs the collected information in a graphical report. The visual representation makes it easy to spot unusual spikes in usage.
they wearIPv4 ist IPv6and supports asynchronousDNS reversedResolution. The utility is free.
SARG - Squid analysis report generator
SARGis an open-source network and bandwidth monitoring application that analyzes Squid log files and generates detailed HTML reports on network usage. Reports include IP addresses, total bandwidth usage, bytes sent and received, websites visited, and more.
The tool is particularly useful for monitoring network usage on individual computers connected to the same network. SARG generates the reports automatically, but requires SquidProxy Serverwrites the log files for reading.
Lulais a caching proxy supporting HTTP, HTTPS, FTP and more. It optimizes the flow of data between the clients and the server and saves frequently used content to save bandwidth.
Monitorix - system and network monitoring tool
MonitorixGenericName is a free, open-source Linux/Unix server monitoring tool for monitoring system resources and networks. It also supports embedded devices in addition to servers.
It supports both IPv4 and IPv6 and allows users to monitor network traffic and bandwidth of all devices on their network. The utility is lightweight and includes a built-in HTTP server for viewing statistics and charts. Charts are color-coded for easier analysis.
Besides network stats, Monitorix can also monitor virtually all system resources including hard drive temperature, system load, kernel usage, CPU usage, environmental sensor stats and much more.
Observium - Network Monitoring Platform
attentionis a network monitoring tool supporting Linux, Windows, FreeBSD, Cisco and many other platforms and operating systems. It has a fully functional and intuitive user interface and automatic device detection. The application is mainly used withsmall servers.
It uses standard SNMP network monitoring to collect network metrics and then creates intuitive charts on the fly for effortless network monitoring.
Comes in two flavors -observation community, which is completely free, andProfessional observatory, which gets updates and new features more frequently.
Öcommunityversion is recommended for personal servers, while theprofessionalVersion provides real-time updates, network activity notifications and alerts.
EtherApe - network monitoring
EtherApeis a graphical network monitoring tool developed for Linux/Unix. It supports a variety of devices includingEthernet, FDDI,Token-Ring, ISDN, PPP, SLIP eWLANDevices, but also differentEncapsulationFormate.
The utility can act as a packet sniffer and bandwidth monitoring tool and display network activity using graphs. It pulls the data from a file or live from the network, allowing users to filter what traffic they want to see.
Each node in the diagram is a specific host, while the links are connections to ithost. Everything is color coded to represent different protocols and different types of traffic on the network.
EtherApe is completely free and open source.
Diploma
This guide has covered the main Linux tools for monitoring system and network bandwidth, used on the command line and as a GUI. Try and test a few options and consider your needs and software features to find the one that best suits your business.
FAQs
Which is the bandwidth management tool for Linux? ›
nload is a command-line tool that checks traffic of the network and the bandwidth usage in real-time. It analyzes the in- and outgoing traffic using two graphs and provides additional information like the total amount of transferred data and minimum & maximum network usage.
What Linux tool captures network traffic? ›Tcpdump is a command line utility that allows you to capture and analyze network traffic going through your system. It is often used to help troubleshoot network issues, as well as a security tool. A powerful and versatile tool that includes many options and filters, tcpdump can be used in a variety of cases.
How do I monitor home traffic in Linux? ›- Nethogs. Nethogs allows grouping bandwidth consumption by an individual process (process identifier). ...
- Nload. Nload is another console-based network monitoring tool for Linux. ...
- Netstat. Another popular CLI network monitoring tool is netstat. ...
- Iftop.
- SolarWinds NetFlow Traffic Analyzer (FREE TRIAL) The SolarWinds NetFlow Traffic Analyzer offers full bandwidth monitoring and management features. ...
- Paessler PRTG Network Monitor (FREE TRIAL) ...
- Datadog Network Performance Monitoring. ...
- ManageEngine Bandwidth Monitoring Tool. ...
- ntopng. ...
- Nagios. ...
- Progress WhatsUp Gold.
- Open a new terminal window (on most Linux distributions you can do this quickly by pressing the ctrl + alt + t keys)
- In the terminal window, type this command: speedtest-cli --simple.
- Press the Enter key on your keyboard.
- Ping.
- Traceroute / Tracert.
- Ipconfig / Ifconfig.
- Nslookup.
- Whois.
- Netstat.
- PuTTY / Tera Term.
- Subnet and IP calculator.
Well if we are to use the most obvious description, the netstat command (short for “network statistics”) is used to display protocol statistics and current TCP/IP network connections.
How to monitor TCP traffic on Linux? ›...
In the above command, the flag:
- -t – enables listing of TCP ports.
- -u – enables listing of UDP ports.
- -l – prints only listening sockets.
- -n – shows the port number.
- -p – show process/program name.
- Step 1: Choose a data source of best fit. To start exploring the depths of your network, you must gain visibility of the data. ...
- Step 2: Discover main applications running on your network. ...
- Step 3: Apply network monitor tools.
netstat command – It is used to display network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. ifconfig command – It is used to display or configure a network interface. nmcli command – A command to show or configure a network interface on Linux.
How do I monitor all network traffic? ›
- Access your router by entering your router's IP address into a web browser.
- Once you sign in, look for a Status section on the router (you might even have a Bandwidth or Network Monitor section depending on the type of router).
nload. nload is a command-line tool that displays the network usage on the system. It belongs to the category of network monitoring tool in Linux that simply sum up all the network traffic on a network interface.
Which network tool measure bandwidth? ›NetFlow Analyzer is a flow-based bandwidth usage monitoring tool that helps you monitor your network's bandwidth usage in real-time. Flows exported to NetFlow Analyzer will help you understand which applications are consuming the most bandwidth and which are the top talkers in the network.
How to use vnStat in Linux? ›By default, vnStat writes fresh statistics to the database every 30 seconds. After waiting for 30 seconds, run vnstat to view the monthly and daily statistics in a tabular form. If your system doesn't receive too much traffic, you can try downloading these files to generate some traffic before viewing the statistics.
What draws the most bandwidth? ›- Spotify.
- Dropbox.
- Video Calling.
- Facebook.
- Torrenting Files.
- Game or Application automatic updates.
- Web Browsing.
- Unsecured WiFi.
Software, hardware and IT strategies used to measure and control the overall bandwidth usage of a business network. Commonly used to maintain optimal user accessibility to network applications, prevent traffic congestion and other potential threats, and remedy traffic complications should they arise.
Which network has the highest bandwidth? ›Fiber internet is the fastest internet you can get. It uses bundled fiber-optic strands wrapped in a reflective case to transmit large amounts of data with light signals. Most fiber internet plans give you 1,000 Mbps speeds, although some providers can get you speeds of up to 2,000 Mbps or even 6,000 Mbps.
How to install internet speed meter in Linux? ›- Open the terminal.
- Type the below codes in Terminal: sudo apt-add-repository ppa:fixnix/netspeed sudo apt-get update sudo apt-get install indicator-netspeed-unity.
- Logout of the current session & Login again for the changes to take effect.
- Download the iperf utility. ...
- On the server that will be receiving data, open an elevated command window and run the following command: "iperf.exe –s –w 2m".
- On the server that will be sending data, open an elevated command window and run the following command: "iperf –c x.x.x.x –w 2m –t 30s –i 1s".
That's why we recommend using a tool like Obkio Network Performance Monitoring software, to continuously monitor network performance, including network speed (Internet speed monitoring and network throughput).
What is the most reliable method of detecting network issues? ›
A Network Monitoring (or Network Performance Monitoring) tool monitors end-to-end network performance to identify network issues affecting your end-users and customers - even if those network problems may reside outside of your local network infrastructure.
How do I choose a network monitoring tool? ›- Your Enterprise Network As A Maze. ...
- Enter Network Monitoring. ...
- Understand Your Preferences. ...
- Ease of Implementation & Customization. ...
- Usability. ...
- Scalability. ...
- Encryption. ...
- Automatic Device Discovery.
The most commonly used network tool when network troubleshooting is the ping utility. This utility is used to provide a basic connectivity test between the requesting host and a destination host.
What device controls network traffic? ›Firewall
A firewall is a network security device that monitors and either blocks or allows traffic based on a set of rules. Firewalls can be software, hardware, or a combination of both.
A simple way to identify an "unknown device on a network" is through the command-line interface (CLI) of your computer system. Operating systems such as Windows, Linux, and macOS have their own set of networking commands such as "ipconfig" and “ping” for basic scanning and troubleshooting.
How to use netstat in Linux? ›netstat command without any argument displays information about the Linux networking subsystem. By default, netstat displays a list of open sockets. $ netstat Active Internet connections (w/o servers) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 erpnext. Dlink:59438 602.
How to check UDP traffic in Linux? ›Use ss command to display all open TCP and UDP ports in Linux. Another option is to use the netstat command to list all ports in Linux. Apart from ss / netstat one can use the lsof command to list open files and ports on Linux based system. Finally, one can use nmap command to check TCP and UDP ports too.
Can Wireshark capture all network traffic? ›By default, Wireshark only captures packets going to and from the computer where it runs. By checking the box to run Wireshark in promiscuous mode in the capture settings, you can capture most of the traffic on the LAN.
Is it illegal to monitor network traffic? ›Employee monitoring in the United States is completely legal. Most federal and state laws allow employers to monitor just about anything that comes in and out of company-owned devices and across their network, particularly where there is a legitimate business intent.
Which tool lets you log network traffic and analyze it? ›ManageEngine NetFlow Analyzer is a web-based network traffic analyser tool that helps you collect and analyse network traffic patterns to provide you with real-time traffic behavior and bandwidth usage by application, interface, and devices.
How do you check which ports are listening in Linux? ›
- For Microsoft Windows: netstat -ano | find "1234" | find "LISTEN" tasklist /fi "PID eq 1234"
- For Linux: netstat -anpe | grep "1234" | grep "LISTEN"
The lsof (list open files) command returns the user processes that are actively using a file system. It is sometimes helpful in determining why a file system remains in use and cannot be unmounted.
What does netstat tell me? ›The netstat command generates displays that show network status and protocol statistics. You can display the status of TCP and UDP endpoints in table format, routing table information, and interface information. The most frequently used options for determining network status are: s , r , and i .
Which method would you prefer while monitoring a Linux machine? ›Top – Linux Process Monitoring
The top command is used to display all the running and active real-time processes in an ordered list and updates it regularly. It displays CPU usage, Memory usage, Swap Memory, Cache Size, Buffer Size, Process PID, User, Commands, and much more.
Nagios is the Linux Monitoring Tool.
Learn how to monitor Linux machines with Nagios XI using SNMP. SNMP is an “agentless” method of monitoring network devices and servers, and is often preferable to installing dedicated agents on target machines.
Nagios is an open source monitoring system for computer systems. It was designed to run on the Linux operating system and can monitor devices running Linux, Windows and Unix operating systems (OSes). Nagios software runs periodic checks on critical parameters of application, network and server resources.
What is the best Iperf alternative? ›Netperf. NetPerf is a CLI tool used on *nix operating systems (it also compiles on Windows) similar to Iperf that was originally developed by Hewlett Packard. While it's not technically open source, it is free to use and a fairly popular tool for measuring throughput and benchmarking network speeds.
Which tool measure bandwidth between two servers? ›CommTest. CommTest is a program used to test network connectivity performance and transfer speeds between two computers. It measures the transfer speed, latency, and packet loss between the two computers. To use CommTest, you install it on both computers and then use the Connect button to configure the test's target.
How to test network throughput Linux? ›- Using speedtest-cli to Test Internet Speed.
- Using fast-cli to Test Internet Speed.
- Using CMB to Show Network Speed.
- Using iperf to Measure Network Speed Between Two Devices.
- Using nload to View Incoming and Outgoing Network Traffic.
- Using tcptrack to Test Network Activity.
vnStat is a network utility for the Linux operating system. It uses a command line interface. vnStat command is a console-based network traffic monitor. It keeps a log of hourly, daily and monthly network traffic for the selected interface(s) but is not a packet sniffer.
How to install vnStat in Linux? ›
- Execute the following command to set up and install vnstat on Ubuntu server: ...
- sudo systemctl status vnstat.service.
- vnstat -h. ...
- vnstat -d. ...
- vnstat -m.
- vnstat -t. ...
- Another nifty option that shows live network transfer rate and statistics will be shown after interruption if the runtime was more than 10 seconds:
You can run the nload command by specifying a network interface. Otherwise, it will auto-detect the network interface and start monitoring. Press F5 to save the current settings to the user's configuration file. Press F6 to reload settings from the user's configuration file.
What is bandwidth management software? ›November 2020) Bandwidth management is the process of measuring and controlling the communications (traffic, packets) on a network link, to avoid filling the link to capacity or overfilling the link, which would result in network congestion and poor performance of the network.
What is network management in Linux? ›NetworkManager is a system network service that manages your network devices and connections and attempts to keep network connectivity active when available. It manages Ethernet, WiFi, mobile broadband (WWAN) and PPPoE devices while also providing VPN integration with a variety of different VPN services.
How do I monitor my bandwidth? ›One way to assess a network's bandwidth usage is to run a network internet speed test. This allows you to view your network download and upload speeds in near real time. Running a test like this during several points in the day can give a general idea of overall usage and help with measuring bandwidth usage trends.
How can I see what devices are using bandwidth? ›- Open the Google Home app .
- Tap Wi-Fi .
- At the top, tap Devices.
- Tap a specific device and a tab to find additional details. Speed: Real time usage is how much data your device is currently using.
- PUBLIC WIRELESS. Long Term Evolution (LTE) cellular service, also referred to as 4G, and satellite tend to be more expensive than terrestrial services offering similar bandwidth. ...
- PUBLIC BROADBAND. ...
- PRIVATE NETWORKS. ...
- SOFTWARE-DEFINED WIDE AREA NETWORKS (SD-WAN)
- Open the web browser and in the address bar type in the default access like:: http://tplinkwifi.net.
- Type the username and password in the login page. ...
- Click on Bandwidth Control-Control Settings on the left menu.
- Click Save to save the Settings.
Close all the programs on your computer except for the tools you're actively using. Switch to audio only. Use live video only when necessary. Turn off your video to reduce load on the internet connection.
How to check connectivity between two servers in Linux? ›- Check your network configuration. ...
- Check the network configuration file. ...
- Check the servers DNS records. ...
- Test the connection both ways. ...
- Find out where the connection fails. ...
- Firewall settings. ...
- Host status information.
How do I run NetworkManager in Linux? ›
- 3.1. Installation. In any event, we can install the Network Manager package via a package manager like apt or yum. ...
- 3.2. Service Execution. Importantly, we must ensure the service is up and running. ...
- 3.3. Relation With Other Network Services. ...
- 3.4. Configuration Files.
The network statistics ( netstat ) command is a networking tool used for troubleshooting and configuration, that can also serve as a monitoring tool for connections over the network. Both incoming and outgoing connections, routing tables, port listening, and usage statistics are common uses for this command.
How many monitoring tools are there in Linux? ›Monitoring tools in Linux, in any environment, whether Linux or others, are important to keep the infrastructure and network intact and running smoothly. In this article, we have compiled the top 18+ monitoring tools in Linux that will adequately manage the applications and ensure that system is in good health.
Which is better Nagios vs Zabbix? ›In terms of protocol support, Zabbix and Nagios Core match each other evenly. Both monitoring tools support a wide range of protocols, including FTP, HTTP, SNMP, SNTP, SSH, POP3, and MySQL. When it comes to plugins, Nagios is a clear winner as it has hundreds of plugins that can be integrated with Nagios Core.
What's a good system monitoring tool? ›Our top recommendations include SolarWinds Server and Application Monitor, eG Innovations, Datadog, NinjaRMM, Site24x7, Sematext, Atera, and PRTG. If you have a sophisticated infrastructure with loads of devices connected, then you must opt for tools like SolarWinds, PRTG, OpenNMS, Nagios, and Icinga.