- Lab
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Libraries: If you want this lab, consider one of these libraries.
- Cloud

Identify and Fix Pluggable Authentication (PAM) Issues
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.*

Lab Info
Table of Contents
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Challenge
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
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Challenge
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
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