How To Install authd on CentOS 8

authd is A RFC 1413 ident protocol daemon

Introduction

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

What is authd

authd is a small and fast RFC 1413 ident protocol daemon with both xinetd server and interactive modes that supports IPv6 and IPv4 as well as the more popular features of pidentd.

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

Install authd 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 authd using dnf by running the following command:

sudo dnf -y install authd

Install authd 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 authd using yum by running the following command:

sudo yum -y install authd

How To Uninstall authd on CentOS 8

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

sudo dnf remove authd

authd Package Contents on CentOS 8

/etc/ident.key
/usr/lib/.build-id
/usr/lib/.build-id/11
/usr/lib/.build-id/11/bbe959c4d22faae54fea386fba4ba0d5b61f84
/usr/lib/systemd/system/auth.socket
/usr/lib/systemd/system/[email protected]
/usr/sbin/in.authd
/usr/share/doc/authd
/usr/share/doc/authd/COPYING
/usr/share/doc/authd/README.html
/usr/share/doc/authd/rfc1413.txt
/usr/share/licenses/authd
/usr/share/licenses/authd/COPYING
/usr/share/locale/ja/LC_MESSAGES/authd.mo
/usr/share/man/man1/in.authd.1.gz

References

Summary

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