How To Install tcpdump on CentOS 7
Introduction
In this tutorial we learn how to install tcpdump on CentOS 7.
What is tcpdump
Tcpdump is a command-line tool for monitoring network traffic. Tcpdump can capture and display the packet headers on a particular network interface or on all interfaces. Tcpdump can display all of the packet headers, or just the ones that match particular criteria. Install tcpdump if you need a program to monitor network traffic.
We can use yum or dnf to install tcpdump on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install tcpdump.
Install tcpdump on CentOS 7 Using yum
Update yum database with yum using the following command.
sudo yum makecache
After updating yum database, We can install tcpdump using yum by running the following command:
sudo yum -y install tcpdump
Install tcpdump on CentOS 7 Using dnf
If you don’t have dnf installed you can install DNF on CentOS 7 first.
Update yum database with dnf using the following command.
sudo dnf makecache
After updating yum database, We can install tcpdump using dnf by running the following command:
sudo dnf -y install tcpdump
How To Uninstall tcpdump on CentOS 7
To uninstall only the tcpdump package we can use the following command:
sudo dnf remove tcpdump
References
Summary
In this tutorial we learn how to install tcpdump on CentOS 7 using yum and dnf.
