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<?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>