Cannot synchronize with DC NTP

I quoted what worked for another user but, on top of that, will do some small changes (AD networking is not a strong point of mine, so anyone correct me if you spot something wrong.)

On NethServer configured as AD (DC) and acting as DHCP and DNS server:

  • Gateway IP -> Green IP (or empty)
  • NTP servers -> nsdc AD container IP
  • DNS Servers -> Green IP
  • WINS Servers -> nothing (legacy netbios name resolution)