How To Install dcfldd on CentOS 8

dcfldd is Improved dd, useful for forensics and security

Introduction

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

What is dcfldd

dcfldd is an enhanced version of GNU dd with features useful for forensics and security. dcfldd has the following additional features * Hashing on-the-fly - dcfldd can hash the input data as it is being transferred, helping to ensure data integrity. * Status output - dcfldd can update the user of its progress in terms of the amount of data transferred and how much longer operation will take. * Flexible disk wipes - dcfldd can be used to wipe disks quickly and with a known pattern if desired. * Image/wipe Verify - dcfldd can verify that a target drive is a bit-for-bit match of the specified input file or pattern. * Multiple outputs - dcfldd can output to multiple files or disks at the same time. * Split output - dcfldd can split output to multiple files with more configuration possibilities than the split command. * Piped output and logs - dcfldd can send all its log data and output to commands as well as files.

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

Install dcfldd 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 dcfldd using dnf by running the following command:

sudo dnf -y install dcfldd

Install dcfldd 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 dcfldd using yum by running the following command:

sudo yum -y install dcfldd

How To Uninstall dcfldd on CentOS 8

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

sudo dnf remove dcfldd

dcfldd Package Contents on CentOS 8

/usr/bin/dcfldd
/usr/lib/.build-id
/usr/lib/.build-id/5f
/usr/lib/.build-id/5f/eec4349c37c0b52ca980c65d580707183bdf6c
/usr/share/doc/dcfldd
/usr/share/doc/dcfldd/AUTHORS
/usr/share/doc/dcfldd/ChangeLog
/usr/share/doc/dcfldd/README
/usr/share/licenses/dcfldd
/usr/share/licenses/dcfldd/COPYING
/usr/share/man/man1/dcfldd.1.gz

References

Summary

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