How To Install pam_ssh_agent_auth on CentOS 8

pam_ssh_agent_auth is PAM module for authentication with ssh-agent

Introduction

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

What is pam_ssh_agent_auth

This package contains a PAM module which can be used to authenticate users using ssh keys stored in a ssh-agent. Through the use of the forwarding of ssh-agent connection it also allows to authenticate with remote ssh-agent instance. The module is most useful for su and sudo service stacks.

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

Install pam_ssh_agent_auth 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 pam_ssh_agent_auth using dnf by running the following command:

sudo dnf -y install pam_ssh_agent_auth

Install pam_ssh_agent_auth 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 pam_ssh_agent_auth using yum by running the following command:

sudo yum -y install pam_ssh_agent_auth

How To Uninstall pam_ssh_agent_auth on CentOS 8

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

sudo dnf remove pam_ssh_agent_auth

pam_ssh_agent_auth Package Contents on CentOS 8

/usr/lib/.build-id
/usr/lib/.build-id/65
/usr/lib/.build-id/65/5900aee530e7f15a16ffd970dbf5e6471061a8
/usr/lib64/security/pam_ssh_agent_auth.so
/usr/share/licenses/pam_ssh_agent_auth
/usr/share/licenses/pam_ssh_agent_auth/OPENSSH_LICENSE
/usr/share/man/man8/pam_ssh_agent_auth.8.gz
/usr/lib/.build-id
/usr/lib/.build-id/d6
/usr/lib/.build-id/d6/94a9456ee2d0cee926f400155d04ab9873ccd9
/usr/lib64/security/pam_ssh_agent_auth.so
/usr/share/licenses/pam_ssh_agent_auth
/usr/share/licenses/pam_ssh_agent_auth/OPENSSH_LICENSE
/usr/share/man/man8/pam_ssh_agent_auth.8.gz

References

Summary

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