[Freeipa-users] Some computers cannot get Some users logged in.

[Scott Allen]

Found the problem. The users were added by a custom script that didn't
prompt for passwords. As such, the user's were in IPA and enabled but not
able to login as they never had a initial password set. So on migrated
machines it fell through to winbind and somehow found the old AD server.


On Thu, Jun 5, 2014 at 1:47 PM, Scott Allen <sallen at theembassyvfx.com>
wrote:

> Hi,
> I didn't migrate the passwords. All users started with a new default on
> IPA.
> The new user foo doesn't exist on the AD system but can login successfully
> using IPA credentials on a migrated system.
>
>
> On Fri, May 30, 2014 at 12:35 AM, Sumit Bose <sbose at redhat.com> wrote:
>
>> On Thu, May 29, 2014 at 11:20:37AM -0700, Scott Allen wrote:
>> > Hi,
>> > Having a particularly weird problem. We have moved from AD to freeIPA
>> > recently and while there have been some bumps, most of the CentOS 6.2
>> boxes
>> > make the transition successfully. Some background.
>> >
>> > The Linux boxes were joined to AD on Windows 2008R2 using samba/winbind.
>> > When we moved from AD, boxes were not "removed" from AD, just disabled
>> on
>> > the server side. We scripted the necessary bits since we were moving to
>> a
>> > new subnet as well. The script runs "ipa-client-install -p admin
>> --password
>> > PASSWORD --enable-dns-updates -U"
>> >
>> > The machines were joined successfully to freeIPA and then added to
>> > allow_all_hosts Host Group.
>> >
>> > On a workstation that was migrated, all users can successfully log in.
>> > On a fresh install of CentOS6.2, only myself (admin_user) and a newly
>> > created user (foo) can successfully log in.
>> >
>> > On this fresh install, 'david' is blocked but new user 'foo' is allowed.
>> >
>> > May 29 09:20:29 embassy419 polkitd(authority=local): Registered
>> > Authentication Agent for session /org/freedesktop/ConsoleKit/Session1
>> > (system bus name :1.26
>> [/usr/libexec/polkit-gnome-authentication-agent-1],
>> > object path /org/gnome/PolicyKit1/AuthenticationAgent, locale
>> en_US.UTF-8)
>> > May 29 09:20:46 embassy419 pam: gdm-password[2910]:
>> > pam_unix(gdm-password:auth): authentication failure; logname= uid=0
>> euid=0
>> > tty=:0 ruser= rhost=  user=david
>> > May 29 09:20:47 embassy419 pam: gdm-password[2910]:
>> > pam_sss(gdm-password:auth): system info: [Preauthentication failed]
>> > May 29 09:20:47 embassy419 pam: gdm-password[2910]:
>> > pam_sss(gdm-password:auth): authentication failure; logname= uid=0
>> euid=0
>> > tty=:0 ruser= rhost= user=david
>> > May 29 09:20:47 embassy419 pam: gdm-password[2910]:
>> > pam_sss(gdm-password:auth): received for user david: 17 (Failure setting
>> > user credentials)
>> > May 29 10:44:06 embassy419 polkitd(authority=local): Registered
>> > Authentication Agent for session /org/freedesktop/ConsoleKit/Session3
>> > (system bus name :1.88
>> [/usr/libexec/polkit-gnome-authentication-agent-1],
>> > object path /org/gnome/PolicyKit1/AuthenticationAgent, locale
>> en_US.UTF-8)
>> > May 29 10:44:13 embassy419 pam: gdm-password[3956]:
>> > pam_unix(gdm-password:auth): authentication failure; logname= uid=0
>> euid=0
>> > tty=:1 ruser= rhost=  user=foo
>> > May 29 10:44:14 embassy419 pam: gdm-password[3956]:
>> > pam_sss(gdm-password:auth): authentication success; logname= uid=0
>> euid=0
>> > tty=:1 ruser= rhost= user=foo
>> > May 29 10:44:14 embassy419 pam: gdm-password[3956]:
>> > pam_unix(gdm-password:session): session opened for user foo by (uid=0)
>> > May 29 10:44:15 embassy419 polkitd(authority=local): Unregistered
>> > Authentication Agent for session /org/freedesktop/ConsoleKit/Session3
>> > (system bus name :1.88, object path
>> > /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
>> > (disconnected from bus)
>> >
>> > But on this machine that was migrated.
>> > pam: gdm-password[14145]: pam_unix(gdm-password:auth): authentication
>> > failure; logname= uid=0 euid=0 tty=:1 ruser= rhost=  user=david
>> > May 29 10:42:08 Embassy426 pam: gdm-password[14145]:
>> > pam_sss(gdm-password:auth): system info: [Preauthentication failed]
>> > May 29 10:42:08 Embassy426 pam: gdm-password[14145]:
>> > pam_sss(gdm-password:auth): authentication failure; logname= uid=0
>> euid=0
>> > tty=:1 ruser= rhost= user=david
>> > May 29 10:42:08 Embassy426 pam: gdm-password[14145]:
>> > pam_sss(gdm-password:auth): received for user david: 17 (Failure setting
>> > user credentials)
>> > May 29 10:42:08 Embassy426 pam: gdm-password[14145]:
>> > pam_winbind(gdm-password:auth): getting password (0x00000010)
>> > May 29 10:42:08 Embassy426 pam: gdm-password[14145]:
>> > pam_winbind(gdm-password:auth): pam_get_item returned a password
>> > May 29 10:42:09 Embassy426 pam: gdm-password[14145]:
>> > pam_winbind(gdm-password:auth): user 'david' granted access
>> > May 29 10:42:09 Embassy426 pam: gdm-password[14145]:
>> > pam_winbind(gdm-password:account): valid_user: wbcGetpwnam gave
>> > WBC_ERR_DOMAIN_NOT_FOUND
>> > May 29 10:42:10 Embassy426 pam: gdm-password[14145]:
>> > pam_unix(gdm-password:session): session opened for user david by (uid=0)
>>
>> As Dmitri already said, on the migrated systems winbind is still used
>> and doing the authentication which is still talking ot AD. But you can
>> see the same error from pam_sss 'Preauthentication failed' which
>> typically is an indication that the password is wrong.
>>
>> How did you migrate the passwords from AD to IPA?
>>
>> bye,
>> Sumit
>>
>> > May 29 10:42:10 Embassy426 polkitd(authority=local): Unregistered
>> > Authentication Agent for session /org/freedesktop/ConsoleKit/Session3
>> > (system bus name :1.85, object path
>> > /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
>> > (disconnected from bus)
>>
>> _______________________________________________
>> Freeipa-users mailing list
>> Freeipa-users at redhat.com
>> https://www.redhat.com/mailman/listinfo/freeipa-users
>>
>
>
>
> --
> Scott Allen
> Head of IT
> The Embassy Visual Effects Inc.
> 4th Floor - 177 W 7th Avenue
> Vancouver, B.C.
> V5Y 1L8
> 604.696.6862 ext 241
>



-- 
Scott Allen
Head of IT
The Embassy Visual Effects Inc.
4th Floor - 177 W 7th Avenue
Vancouver, B.C.
V5Y 1L8
604.696.6862 ext 241
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/freeipa-users/attachments/20140605/58166ed1/attachment.htm>