PAM_CANONICALIZE_USER(8) Linux-PAM Manual PAM_CANONICALIZE_USER(8) (NAME) pam_canonicalize_user - () (SYNOPSIS) pam_canonicalize_user.so (DESCRIPTION) PAM pam_get_user(3) PAM_USER pw_name . (OPTIONS) . (MODULE TYPES PROVIDED) auth . (RETURN VALUES) PAM_IGNORE . PAM_USER_UNKNOWN . PAM_SYSTEM_ERR . PAM_INCOMPLETE . PAM_CONV_ERR . PAM_ABORT . PAM_BUF_ERR . (EXAMPLES) auth PAM : auth required pam_canonicalize_user.so (SEE ALSO) pam_get_user(3), pam_get_item(3), pam_set_item(3), getpwnam(3), pam.conf(5), pam.d(5), pam(8) (AUTHORS) pam_canonicalize_user Dmitry V. Levin . Linux-PAM 01/26/2026 PAM_CANONICALIZE_USER(8)