--- ntpd_servers: - 'ntp.evolix.net iburst' ntpd_acls: - '-4 default ignore' - '-6 default ignore' - 'source nomodify noquery notrap' # Debian 9 and later - 'ntp.evolix.net nomodify noquery notrap' # Debian 8 - '127.0.0.1' - '::1'