PAM_SHELLS(8)                            Linux-PAM Manual                           PAM_SHELLS(8)



NAME
       pam_shells - PAM module to check for valid login shell

SYNOPSIS
       pam_shells.so

DESCRIPTION
       pam_shells is a PAM module that only allows access to the system if the users shell is
       listed in /etc/shells.

       It also checks if /etc/shells is a plain file and not world writable.

OPTIONS
       This module does not recognise any options.

MODULE TYPES PROVIDED
       The auth and account module types are provided.

RETURN VALUES
       PAM_AUTH_ERR
           Access to the system was denied.

       PAM_SUCCESS
           The users login shell was listed as valid shell in /etc/shells.

       PAM_SERVICE_ERR
           The module was not able to get the name of the user.

EXAMPLES
           auth  required  pam_shells.so



SEE ALSO
       shells(5), pam.conf(5), pam.d(5), pam(7)

AUTHOR
       pam_shells was written by Erik Troan <ewt AT redhat.com>.



Linux-PAM Manual                            09/19/2013                              PAM_SHELLS(8)