Edit file File name : ntpdate Content :NTPDATE_CONF=/etc/default/ntpdate NTPDATE_DHCP_CONF=/run/ntpdate.dhcp ntp_servers_setup_remove() { rm -f $NTPDATE_DHCP_CONF } ntp_servers_setup_add() { if [ -e $NTPDATE_DHCP_CONF ] && [ "$new_ntp_servers" = "$old_ntp_servers" ]; then return fi if [ -z "$new_ntp_servers" ]; then ntp_servers_setup_remove return fi tmp=$(mktemp "$NTPDATE_DHCP_CONF.XXXXXX") || return chmod --reference=$NTPDATE_CONF $tmp chown --reference=$NTPDATE_CONF $tmp ( echo "# NTP server entries received from DHCP server" echo "NTPSERVERS='$new_ntp_servers'" ) >>$tmp mv $tmp $NTPDATE_DHCP_CONF } ntp_servers_setup() { case $reason in BOUND|RENEW|REBIND|REBOOT) ntp_servers_setup_add ;; EXPIRE|FAIL|RELEASE|STOP) ntp_servers_setup_remove ;; esac } ntp_servers_setup Save