How To Install rng-tools on CentOS 8

rng-tools is Random number generator related utilities

Introduction

In this tutorial we learn how to install rng-tools on CentOS 8.

What is rng-tools

Hardware random number generation tools.

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

Install rng-tools 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 rng-tools using dnf by running the following command:

sudo dnf -y install rng-tools

Install rng-tools 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 rng-tools using yum by running the following command:

sudo yum -y install rng-tools

How To Uninstall rng-tools on CentOS 8

To uninstall only the rng-tools package we can use the following command:

sudo dnf remove rng-tools

rng-tools Package Contents on CentOS 8

/sbin/rngd
/usr/bin/rngtest
/usr/lib/.build-id
/usr/lib/.build-id/94
/usr/lib/.build-id/94/94be7814191c47947b5278fa282d6b2562ef79
/usr/lib/.build-id/f1
/usr/lib/.build-id/f1/cf1dff1cbecef68ba20abb02d73765dae83c32
/usr/lib/systemd/system/rngd-wake-threshold.service
/usr/lib/systemd/system/rngd.service
/usr/share/doc/rng-tools
/usr/share/doc/rng-tools/AUTHORS
/usr/share/doc/rng-tools/NEWS
/usr/share/doc/rng-tools/README
/usr/share/licenses/rng-tools
/usr/share/licenses/rng-tools/COPYING
/usr/share/man/man1/rngtest.1.gz
/usr/share/man/man8/rngd.8.gz

References

Summary

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