pam_shells(8) — Linux manual page

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 user's 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 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

           auth  required  pam_shells.so

SEE ALSO

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

AUTHOR

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

COLOPHON

       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 project's upstream Git repository
       ⟨https://github.com/linux-pam/linux-pam.git⟩ on 2023-12-22.  (At
       that time, the date of the most recent commit that was found in
       the repository was 2023-12-18.)  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               12/22/2023                  PAM_SHELLS(8)

Pages that refer to this page: shells(5)

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