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This article mainly analyzes the relevant knowledge points of the very powerful Linux network monitoring tools, the content is detailed and easy to understand, the operation details are reasonable, and has a certain reference value. If you are interested, you might as well follow the editor to take a look, and follow the editor to learn more about "what are the very powerful Linux network monitoring tools?"

It is a very important work for the Linux system administrator to ensure the security of the network and prevent the program from using the network too much and causing the network to be slow.

Iftop

Iftop network monitoring tool

Linux users are usually familiar with top-a system monitoring tool that allows us to know the processes that are running in real time on our system and can easily manage them. Iftop is similar to top applications, but it specifically monitors the network, through which you can learn more about the network and all the processes that use it.

Vnstat

Vnstat network monitoring tool

Vnstat is a network monitoring tool that is included by default in most Linux distributions. It allows us to control the traffic sent and received in a time period selected by the user in real time.

Iptraf

Iptraf monitoring tool for linux

IPTraf is a console-based Linux real-time network monitor. It collects a variety of information across the network as an IP traffic monitor, including TCP flag information, ICMP details, TCP / UDP traffic failures, TCP connection packets, and byte counting. It also collects all the TCP, UDP, and... Details of IP protocol and non-IP protocol ICMP checksum errors, interface activity, and so on. (LCTT translation note: there is an error in the original text here, just correct it)

Monitorix-system and network monitoring

Monitorix system monitoring tool for linux

Monitorix is a lightweight free application designed to monitor the system and network resources of as many Linux / Unix servers as possible. It adds a HTTP web server that collects system and network information on a regular basis and displays them in a chart. It tracks average system load, memory allocation, disk health, system services, network ports, mail statistics (Sendmail, Postfix, Dovecot, etc.), MySQL statistics, and more. It is designed to manage the overall performance of the system and to help detect failures, bottlenecks, abnormal activities, and so on.

Dstat

Dstat network monitoring tool

This monitor is less well known than the previous ones, but it is included by default in some distributions.

We can get more information about the tool and download the necessary packages from this link.

Bwm-ng

Bwm-ng monitoring tool

This is one of the most simplified tools. It allows you to interactively retrieve data from a connection, and to facilitate the use of other devices, you can export the data in certain formats while getting it.

Ibmonitor

Ibmonitor tool for linux

Similar to the one above, it shows the filtered network traffic on the connection interface and explicitly distinguishes the received traffic from the transmitted traffic.

Htop-Linux process tracking

Htop linux processes monitoring tool

Htop is a more advanced, interactive, real-time Linux process tracking tool. It is similar to Linux's top command, but has some more advanced features, such as an easier-to-use process management interface, keyboard shortcuts, horizontal and vertical process views, and more. Htop is a third-party tool, it is not included in the Linux system, you must use YUM or APT-GET or other package management tools to install it. For more information about installing it, read this article.

Arpwatch-Ethernet activity Monitor

Arpwatch ethernet monitoring tool

Arpwatch is an address resolver designed to manage Ethernet communications in Linux networks. It continuously monitors Ethernet traffic and records changes in IP and MAC addresses in a network, which also records a timestamp. It also has a function to send an email to the system administrator when a pair of IP and MAC addresses are added or changed. This feature is very useful when an ARP attack occurs in a network.

Wireshark-Network Monitoring tool

Wireshark network monitoring tool

Wireshark is a free application that allows you to capture and view information going to and from your system. It can drill down into packets and view the contents of each package-to meet your different needs. It is generally used to study protocol issues and to create and test special cases of programs. This open source parser is a recognized commercial standard for parsers, and its popularity is due to its long reputation.

Originally called Ethereal,Wireshark, it has a lightweight, easy-to-understand interface that classifies and displays protocol information from different real systems.

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