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(8) AUTHOR pam_shells was written by Erik Troan <[email protected]>. Linux-PAM Manual 09/19/2013 PAM_SHELLS(8)