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Full Discussion: PAM authentication failure
Top Forums UNIX for Advanced & Expert Users PAM authentication failure Post 302268396 by capibolso on Monday 15th of December 2008 02:54:06 PM
Old 12-15-2008
PAM authentication failure

My PAM module seems to work right but it fails in authentication. Althought it can't authenticate, the session module works and the software who uses it executes well.

For example, when I login through "gdm" using pam to authenticate against an ldap server
/var/log/auth.log shows

Quote:
pam_unix(gdm:auth): authentication failure; logname= uid=0 euid=0 tty=:0 ruser= rhost= user=myuser
pam_unix(gdm:session): session opened for user myuser by (uid=0)
Any ideas?

Last edited by capibolso; 12-16-2008 at 08:31 AM.. Reason: improving reasons
 

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PAM_LOGINUID(8) 						 Linux-PAM Manual						   PAM_LOGINUID(8)

NAME
pam_loginuid - Record user's login uid to the process attribute SYNOPSIS
pam_loginuid.so [require_auditd] DESCRIPTION
The pam_loginuid module sets the loginuid process attribute for the process that was authenticated. This is necessary for applications to be correctly audited. This PAM module should only be used for entry point applications like: login, sshd, gdm, vsftpd, crond and atd. There are probably other entry point applications besides these. You should not use it for applications like sudo or su as that defeats the purpose by changing the loginuid to the account they just switched to. OPTIONS
require_auditd This option, when given, will cause this module to query the audit daemon status and deny logins if it is not running. MODULE TYPES PROVIDED
Only the session module type is provided. RETURN VALUES
PAM_SESSION_ERR An error occurred during session management. EXAMPLES
#%PAM-1.0 auth required pam_unix.so auth required pam_nologin.so account required pam_unix.so password required pam_unix.so session required pam_unix.so session required pam_loginuid.so SEE ALSO
pam.conf(5), pam.d(5), pam(7), auditctl(8), auditd(8) AUTHOR
pam_loginuid was written by Steve Grubb <sgrubb@redhat.com> Linux-PAM Manual 09/19/2013 PAM_LOGINUID(8)
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