On Fri, Sep 08, 2017 at 07:26:03AM -0000, Sam Weston wrote:
> Hi Lukas,
> 
> Sorry for the lack of detail. I was hoping I'd just done something stupid in 
> the config. I've put it on debug level 6.
> 
> For a successful login (with the network cable connected):
> sssd_pam.log:
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [accept_fd_handler] (0x0400): Client 
> connected to privileged pipe!
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [sss_cmd_get_version] (0x0200): 
> Received client version [3].
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [sss_cmd_get_version] (0x0200): 
> Offered version [3].
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_cmd_acct_mgmt] (0x0100): entering 
> pam_cmd_acct_mgmt
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [sss_parse_name_for_domains] (0x0200): 
> name 'sweston' matched without domain, user is sweston
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_print_data] (0x0100): command: 
> SSS_PAM_ACCT_MGMT

Is this really the first message in the logs you see for the
login attempt?

SSS_PAM_ACCT_MGMT is the access control step after a successful
authentication. There should be a SSS_PAM_AUTHENTICATE step before
because during this step the password is validated and cached.

If there is no SSS_PAM_AUTHENTICATE the password is validate by a
different pam module. Please check the system logs which pam module
might be used here. Are there by chance pam_winbind or pam_krb5 in the
pam configuration for gdm-password?

bye,
Sumit

> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_print_data] (0x0100): domain: not 
> set
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_print_data] (0x0100): user: 
> sweston
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_print_data] (0x0100): service: 
> gdm-password
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_print_data] (0x0100): tty: 
> /dev/tty1
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_print_data] (0x0100): ruser: not 
> set
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_print_data] (0x0100): rhost: not 
> set
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_print_data] (0x0100): authtok 
> type: 0
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_print_data] (0x0100): newauthtok 
> type: 0
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_print_data] (0x0100): priv: 1
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_print_data] (0x0100): cli_pid: 
> 6687
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [pam_print_data] (0x0100): logon name: 
> sweston
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [cache_req_send] (0x0400): CR #1: New 
> request 'Initgroups by name'
> (Fri Sep  8 08:12:15 2017) [sssd[pam]] [cache_req_process_input] (0x0400): CR 
> #1: Parsing input name [sweston]
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