Configure NTP

[dpisano]

echo "### Ensure ntp.service is not listening to avoid potential port conflict with ddospot."
myNTP_IF_DISABLE="interface ignore wildcard
interface ignore 127.0.0.1
interface ignore ::1"

if [ "$(cat /etc/ntp.conf | grep "interface ignore wildcard" | wc -l)" != "1" ];
  then
    echo "### Found active ntp listeners and updating config."
    echo "$myNTP_IF_DISABLE" | tee -a /etc/ntp.conf
    echo "### Restarting ntp.service for changes to take effect."
    systemctl stop ntp.service
    systemctl start ntp.service
  else
    echo "### Found no active ntp listeners."
fi