How To Install iftop on CentOS 8

iftop is Command line tool that displays bandwidth usage on an interface

Introduction

In this tutorial we learn how to install iftop on CentOS 8.

What is iftop

iftop does for network usage what top(1) does for CPU usage. It listens to network traffic on a named interface and displays a table of current bandwidth usage by pairs of hosts. Handy for answering the question “why is our ADSL link so slow?”.

We can use yum or dnf to install iftop on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install iftop.

Install iftop on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install iftop using dnf by running the following command:

sudo dnf -y install iftop

Install iftop on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install iftop using yum by running the following command:

sudo yum -y install iftop

How To Uninstall iftop on CentOS 8

To uninstall only the iftop package we can use the following command:

sudo dnf remove iftop

iftop Package Contents on CentOS 8

/usr/lib/.build-id
/usr/lib/.build-id/a9
/usr/lib/.build-id/a9/21626379f22f64a646ac8695d0316ad51a2cb3
/usr/sbin/iftop
/usr/share/doc/iftop
/usr/share/doc/iftop/ChangeLog
/usr/share/doc/iftop/README
/usr/share/doc/iftop/TODO
/usr/share/licenses/iftop
/usr/share/licenses/iftop/COPYING
/usr/share/man/man8/iftop.8.gz

References

Summary

In this tutorial we learn how to install iftop on CentOS 8 using yum and dnf.