To install this tool on Debian/ Ubuntu use – sudo apt install vnstat -y This means that vnStat won’t actually be sniffing any traffic and also ensures light use of system resources regardless of network traffic rate. This tool uses the network interface statistics provided by the kernel as an information source. The vnStat is an open-source command-line network traffic monitor tool for Linux and BSD that keeps a log of network traffic for the selected interface(s). Where enp1s0 is the name of the interface. Once it gets install use the given command to start this tool and network monitoring on your system. If you are using RHEL/CentOS then use – sudo yum install tcptrack -y On Debian/ Ubuntu use – sudo apt install tcptrack -y Now you can use one of the given commands to install it on your system – It captures packets and calculates network bandwidth for each TCP connection, it uses pcap library to do so. The tcptrack command is quite similar to iftop command. This will display the output something like given in the image below. On RHEL/CentOS use – sudo yum install slurm -yĪfter the installation use – sudo slurm -s -i enp1s0 To install it on Debian/Ubuntu use – sudo apt install slurm -y It supports three types of graphs which can be activated using the c, s, and i keys. It shows device statics with an ASCII graph. The slurm is a system workload manager, we can use it to monitor network traffic on a system. Now use the given command to start this tool – If you are using RHEL/ CentOS – sudo yum install epel-release Now to install this tool on Debian/Ubuntu use – sudo apt install bmon -y It also displays the graph and a section for packet-level information. The bmon or bandwidth monitor is a network monitoring tool that is similar to Nload it shows traffic loads on all the interfaces of a system. Now this will display output something like the given in the image. Once it gets installed use the given command to run this utility and see the bandwidth usage. On RHEL/CentOS use – sudo yum install nload -y To install it on Debian/Ubuntu use – sudo apt install nload -y It also displays a graph that can be helpful in a quick overview of the traffic. This command allows users to monitor incoming and outgoing traffic separately. You will see the output something like the given in the image.īy default, iftop will look up the hostnames associated with the addresses it finds in the packets. On RHEL/CentOS use – sudo yum install iftop -y To install it on Debian/Ubuntu use – sudo apt install iftop -y Iftop captures packets that moving in and out from the network adapters and sums up to find the bandwidth being utilized by our servers. It displays an updated list of network connections these connections are ordered by bandwidth usage. The iftop is a free command-line tool to monitor the network on a system. There are many tools available for monitoring network traffic in a Linux system a few of them are given below. Command-line tools to monitor network traffic
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