Identify and Fix Pluggable Authentication (PAM) Issues

1 hour
  • 2 Learning Objectives

About this Hands-on Lab

In this exercise, you will need to troubleshoot and resolve authentication issues preventing Samba access.

*This course is not approved or sponsored by Red Hat.*

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Verify the Samba service.

Verify the service is running:

systemctl status smb

Attempt to view the listing of shares on the localhost:

smbclient -U cloud_user -L localhost

Password: Welcome1

Resolve authentication issue.

Check /var/log/secure for any errors:

tail /var/log/secure

Check the Samba logs for any errors:

tail /var/log/samba/log.smbd

View the PAM service file:

cat /etc/pam.d/samba

Verify the package to see if any PAM files are changed:

rpm -V samba

Move the changes PAM file to /root/samba.pam.old:

mv /etc/pam.d/samba /root/samba.pam.old

Reinstall Samba to restore the original PAM file:

yum reinstall -y samba

Restart the Samba service:

systemctl restart smb

View the listing of shares on the localhost:

smbclient -U cloud_user -L localhost

Additional Resources

Resolve authentication issues preventing the Samba user cloud_user from listing the Samba shares on the localhost using the password "Welcome1".

What are Hands-on Labs

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

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