Sorry, I wasn't replying to the listserv initially.  Complete list of packages available here:

https://pastebin.com/raw/Ux8sac73

Operating System is Rocky linux 8.4 should be 100% binary compatible with Redhat 8.4.  

I used mariadb AppStream 10.5 for the install with maria-pam 10.5.9 as well.  I will confirm the same on Redhat 8.4.

Update:

I was able to get local users working by renaming the /etc/pam.d/mariadb to /etc/pam/d/mysql contents:

auth required pam_unix.so audit

account required pam_unix.so audit

However, I still can't get AD user accounts to work even with the pam_sss.so --  I was able to confirm pam is working changing /etc/pam.d/mysql to:

auth required pam_permit.so audit
account required pam_permit.so audit

But, then no authentication is taking place.  I think the issue must be with sssd's pam_sss.so.

I tried increasing the verbosity of the sssd logs.

https://pastebin.com/raw/FsJv4DYR

https://pastebin.com/raw/2TKhYygT

Not sure if there is anything useful in there.

On Mon, Aug 2, 2021 at 12:31 PM Honza Horak <hhorak@redhat.com> wrote:

Michael, can you share, please, which operating system and builds (upstream packages or those from the distribution) do you use?

Thanks,

Honza

On Mon, Aug 2, 2021 at 5:35 PM Michael Barkdoll <mabarkdoll@gmail.com> wrote:

Hi, I'm having issues getting the pam plugin to work with Rocky Linux 8 (RHEL 8) with AppStream MariaDB 10.5.  I've installed mariadb appstream for 10.5 and mariadb-pam packages.

Added the following to /etc/my.cnf.d:

[mariadb]
plugin_load_add = auth_pam

My sssd is joined to Active Directory.  I've created /etc/pam.d/mariadb trying both local pam_unix and pam_sss configurations:

# /etc/pam.d/mariadb for local accounts

auth required pam_unix.so audit

account required pam_unix.so audit

# /etc/pam.d/mariadb for sssd active directory accounts

auth required pam_sss.so

account required pam_sss.so

Tried creating local accounts with:

#CREATE USER 'user'@'%' IDENTIFIED VIA pam USING 'mariadb';

#GRANT SELECT ON db.* TO 'user'@'%' IDENTIFIED VIA pam;

#CREATE USER 'user2'@'%' IDENTIFIED VIA pam;

#GRANT SELECT ON db.* TO 'user2'@'%' IDENTIFIED VIA pam;

I've also tried creating AD accounts:

#CREATE USER 'aduser'@'%' IDENTIFIED VIA pam USING 'mariadb';

#GRANT SELECT ON db.* TO 'aduser'@'%' IDENTIFIED VIA pam;

#CREATE USER 'aduser@college.edu'@'%' IDENTIFIED VIA pam USING 'mariadb';

#GRANT SELECT ON db.* TO 'aduser@college.edu'@'%' IDENTIFIED VIA pam;

I see Redhat has issues with MariaDB 10.3 working with pam plugin but it sounded like 10.5 should work?

https://bugzilla.redhat.com/show_bug.cgi?id=1942330

I feel like I'm missing something in my /etc/sssd/sssd.conf file or some pam configuration steps.

I'm using authselect with sssd:

authselect select custom/user-profile with-mkhomedir with-sudo with-pamaccess

All attempts to `mysql -u user -p` fail. 

MariaDB [(none)]> show plugins;

| pam                           | ACTIVE   | AUTHENTICATION     | auth_pam.so | GPL     |

I tried adding a [pam] section to sssd.

[pam]

pam_public_domains = all

pam_verbosity = 3

Didn't seem to help.  I used realmd to join AD.  Any help is much appreciated.

mysql -u user -p

Enter password:

ERROR 1045 (28000): Access denied for user 'user'@'localhost' (using password: NO)

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