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[Samba] Domain users cannot log on locally to DC




Hi,
I have a samba 4.7.0 DC installed on a Debian Stretch machine.   I
provisioned the domain with rfc2307 enabled and have set the Unix attributes
using Windows 7 RSAT/ADUC.   I think I followed the WiKi pages correctly to
enable the pam_winbind module in PAM, and have allocated a gID to Domain
Users.   After falling foul of the
https://bugzilla.samba.org/show_bug.cgi?id=13054 bug, entering net cache
flush gave the correct output for getent group and getent passwd test1.

Yet I still cannot log on locally to the DC, either on the console or via
ssh.   Relevant config and log files are as follows:

/etc/smb.conf:
# Global parameters
[global]
                netbios name = DC1
                realm = MICROLYNX.CO.UK
                workgroup = MICROLYNX
                dns forwarder = 192.168.2.1
                server role = active directory domain controller
                idmap_ldb:use rfc2307 = yes
                allow dns updates = nonsecure
                wins support = no
                local master = yes
                domain master = yes
                preferred master = yes
                rpc_server:spoolss = external
                rpc_daemon:spoolssd = fork
                printing = cups
                printcap name = cups
                load printers = yes
                winbind nss info = rfc2307
                winbind enum users = yes
                winbind enum groups = yes
                # Use settings from AD for login shell and home directory -
doesn't work so use the next two lines
                template shell = /bin/bash
                template homedir = /srv/users/%U
                log file = /var/log/samba/log.%m
                log level = 1

[netlogon]
                path = /srv/samba/sysvol/microlynx.co.uk/scripts
                read only = No

[sysvol]
                path = /srv/samba/sysvol
                read only = No

[users]
	path = /srv/users
	read only = No

/etc/pam.d/common-account - following lines added:
# add pam_winbind to allow domain users to log in locally
account [default=bad success=ok user_unknown=ignore]	pam_winbind.so

/etc/pam.d/common-auth  - following lines added:
# add pam_winbind to allow domain users to log in locally
auth sufficient	pam_winbind.so use_first_pass

/etc/pam.d/common-password - following lines added:
# add pam_winbind to allow domain users to log in locally
password	sufficient	pam_winbind.so use_authtok

excerpt from /var/log/auth.log: (with debug added to line: auth sufficient
pam_winbind.so use_first_pass in /etc/pam.d/common-auth)
Nov  1 22:53:58 dc1 sshd[5788]: pam_winbind(sshd:auth): [pamh: 0x81d72698]
ENTER: pam_sm_authenticate (flags: 0x0001)
Nov  1 22:53:58 dc1 sshd[5788]: pam_winbind(sshd:auth): getting password
(0x00000011)
Nov  1 22:53:58 dc1 sshd[5788]: pam_winbind(sshd:auth): Could not retrieve
user's password
Nov  1 22:53:58 dc1 sshd[5788]: pam_winbind(sshd:auth): [pamh: 0x81d72698]
LEAVE: pam_sm_authenticate returning 20 (PAM_AUTHTOK_ERR)
Nov  1 22:53:58 dc1 sshd[5788]: pam_unix(sshd:auth): authentication failure;
logname= uid=0 euid=0 tty=ssh ruser= rhost=192.168.2.240  user=test1
Nov  1 22:54:00 dc1 sshd[5788]: Failed password for test1 from 192.168.2.240
port 50348 ssh2
Nov  1 22:54:04 dc1 sshd[5788]: Connection closed by 192.168.2.240 port
50348 [preauth]

Output of getent passwd test1
root@dc1:~# getent passwd test1
MICROLYNX\test1:*:10000:10000:Test One User:/srv/users/test1:/bin/bash

Output of getent group “Domain Users”
root@dc1:~# getent group "Domain Users"
MICROLYNX\domain users:x:10000:

Output of: # ls -l /lib/i386-linux-gnu/security/pam_winbind.so
lrwxrwxrwx 1 root root 44 Nov  1 18:04
/lib/i386-linux-gnu/security/pam_winbind.so ->
/usr/local/samba/lib/security/pam_winbind.so

What am I missing?    Any help appreciated,

Thanks,

Roy



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