Quick question about stack...

Thorsten Kukuk kukuk at suse.de
Mon Aug 3 16:56:16 UTC 2009


On Mon, Aug 03, Jason Gerfen wrote:

> I have a quick question regarding the pam stack.
> 
> The reason I am asking is I am receiving errors and am unable to figure
> out which module is logging the 'UNKNOWN' user message. I used to think
> it was the pam_unix module but it seems I am wrong.
> 
> Here is a quick snippit of the log (/var/log/auth.log)
> Aug  3 12:08:51 Gentoo-x86 login[20736]: pam_unix(login:auth): check
> pass; user unknown
> Aug  3 12:08:51 Gentoo-x86 login[20736]: pam_unix(login:auth):
> authentication failure; logname=LOGIN uid=0 euid=0 tty=tty1 ruser= rhost=
> Aug  3 12:08:51 Gentoo-x86 login[20736]: pam_krb5[20736]: searching
> 'ou=campus,dc=search,dc=domain,dc=com' for 'testuser'...
> Aug  3 12:08:51 Gentoo-x86 login[20736]: pam_krb5[20736]: found
> 'testuser' in 'ad', proceeding to resolve to uid/gid pair...
> Aug  3 12:08:51 Gentoo-x86 login[20736]: pam_krb5[20736]: authentication
> succeeds for 'testuser' (testuser at UTAH.EDU)
> Aug  3 12:08:54 Gentoo-x86 login[20736]: FAILED LOGIN (1) on 'tty1' FOR
> `UNKNOWN', User not known to the underlying authentication module
> 
> Not sure what module is sending that last line to the logs. Any help is
> appreciated.

The login application itself, as result of the pam_unix failure.

  Thorsten

-- 
Thorsten Kukuk, Project Manager/Release Manager SLES
SUSE LINUX Products GmbH, Maxfeldstr. 5, D-90409 Nuernberg
GF: Markus Rex, HRB 16746 (AG Nuernberg)




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