but this time as we change something, it writes what it has loaded as cupsd.conf back into /etc/cups/cupsd.conf, resulting in cupsd.conf containing the HTML error message and CUPS not being startable): $ cupsctl
/* Payment required */ HTTP_STATUS_FORBIDDEN, /* Forbidden to access this URI */ HTTP_STATUS_NOT_FOUND, /* URI was not found */ HTTP_STATUS_METHOD_NOT_ALLOWED, /* Method is not allowed */ HTTP_STATUS_NOT_ACCEPTABLE, /* Not Acceptable */ HTTP_STATUS_PROXY_AUTHENTICATION, /* Proxy ...