How To Install pam_ssh_user_auth on Fedora 34

pam_ssh_user_auth is PAM module to help with SSH_AUTH_INFO_0 PAM module to help with SSH_AUTH_INFO_0

Introduction

In this tutorial we learn how to install pam_ssh_user_auth on Fedora 34.

What is `pam_ssh_user_auth`

pam_ssh_user_auth checks the value of SSH_AUTH_INFO_0 and will return success if is non-empty and failure if it is. It can be used to skip other PAM authentication methods with a configuration like auth [success=1 ignore=ignore default=die] pam_ssh_user_auth.so auth substack password-auth pam_ssh_user_auth 1.0 7.fc34 x86_64 15 k pam_2fa-1.0-7.fc34.src.rpm fedora PAM module to help with SSH_AUTH_INFO_0 https GPLv3+ pam_ssh_user_auth checks the value of SSH_AUTH_INFO_0 and will return success if is non-empty and failure if it is. It can be used to skip other PAM authentication methods with a configuration like auth [success=1 ignore=ignore default=die] pam_ssh_user_auth.so auth substack password-auth

We can use yum or dnf to install pam_ssh_user_auth on Fedora 34. In this tutorial we discuss both methods but you only need to choose one of method to install pam_ssh_user_auth.

Install pam_ssh_user_auth on Fedora 34 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

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

sudo dnf -y install pam_ssh_user_auth

Install pam_ssh_user_auth on Fedora 34 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

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

sudo yum -y install pam_ssh_user_auth

How To Uninstall pam_ssh_user_auth on Fedora 34

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

sudo dnf remove pam_ssh_user_auth

pam_ssh_user_auth Package Contents on Fedora 34

/lib/security/pam_ssh_user_auth.so
/usr/lib/.build-id
/usr/lib/.build-id/2c
/usr/lib/.build-id/2c/c718ea9946597559753e0f9d37c22199ba1d9b
/usr/share/doc/pam_ssh_user_auth
/usr/share/doc/pam_ssh_user_auth/README.md
/usr/share/licenses/pam_ssh_user_auth
/usr/share/licenses/pam_ssh_user_auth/COPYING
/lib64/security/pam_ssh_user_auth.so
/usr/lib/.build-id
/usr/lib/.build-id/e4
/usr/lib/.build-id/e4/a63f2ac50fa19b3eb21dbde639a5e617f49d98
/usr/share/doc/pam_ssh_user_auth
/usr/share/doc/pam_ssh_user_auth/README.md
/usr/share/licenses/pam_ssh_user_auth
/usr/share/licenses/pam_ssh_user_auth/COPYING

References

[pam_ssh_user_auth website](https://cern-cert.github.io/pam_2fa/ https://cern-cert.github.io/pam_2fa/)

Summary

In this tutorial we learn how to install pam_ssh_user_auth on Fedora 34 using yum and dnf.