Quick question about stack...

Jason Gerfen jason.gerfen at scl.utah.edu
Mon Aug 3 17:18:41 UTC 2009


Thorsten Kukuk wrote:
> 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
> 
So at least one module is not returning the PAM_SUCCESS flag?

-- 
Jas

"Tomorrow isn't promised so we live for today"




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