To install the network traffic real-time monitoring tool iftop on CentOS 7, you can follow the steps below:
Open Terminal: On CentOS 7, open Terminal to execute commands.
Install EPEL repository: iftop is usually included in EPEL (Extra Packages for Enterprise Linux) repository. If you haven't installed the EPEL repository yet, install it using the following command:
sudo yum install epel-release
Install iftop: Once the EPEL repository is installed, you can install iftop using the following command:
sudo yum install iftop
Run iftop: Once the installation is complete, you can run iftop to monitor network traffic. Use the following command:
sudo iftop
This will open the iftop interface, displaying real-time network traffic information. You can use the arrow keys and other keys to switch views and sorting options. Press the Q key to exit iftop.
Note that to run iftop you need to have sudo permissions or be logged in as root. If the EPEL repository is not installed or you encounter problems with the installation, you may need to check your network connection or find another solution.