NAME | SYNOPSIS | DESCRIPTION | OPTIONS | MODULE TYPES PROVIDED | RETURN VALUES | EXAMPLES | SEE ALSO | AUTHOR | COLOPHON 

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

NAME         top

       pam_shells - PAM module to check for valid login shell

SYNOPSIS         top

       pam_shells.so

DESCRIPTION         top

       pam_shells is a PAM module that only allows access to the system if
       the user's shell is listed in /etc/shells.
       It also checks if /etc/shells is a plain file and not world writable.

OPTIONS         top

       This module does not recognise any options.

MODULE TYPES PROVIDED         top

       The auth and account module types are provided.

RETURN VALUES         top

       PAM_AUTH_ERR
           Access to the system was denied.
       PAM_SUCCESS
           The user's 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         top

           auth  required  pam_shells.so

SEE ALSO         top

       shells(5), pam.conf(5), pam.d(5), pam(8)

AUTHOR         top

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

COLOPHON         top

       This page is part of the linux-pam (Pluggable Authentication Modules
       for Linux) project.  Information about the project can be found at 
       ⟨http://www.linux-pam.org/⟩.  If you have a bug report for this manual
       page, see ⟨//www.linux-pam.org/⟩.  This page was obtained from the
       tarball Linux-PAM-1.3.0.tar.gz fetched from 
       ⟨http://www.linux-pam.org/library/⟩ on 2017-07-05.  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail
       to man-pages@man7.org
Linux-PAM Manual                 04/01/2016                    PAM_SHELLS(8)