Edit File: ntp.xml
<?xml version="1.0" encoding="utf-8"?> <service> <short>Network Time Protocol (NTP) Server</short> <description>The Network Time Protocol (NTP) allows to synchronize computers to a time server. Enable this option, if you are providing a NTP server. You need the ntp or chrony package installed for this option to be useful.</description> <port protocol="udp" port="123"/> </service>