I want to allow one of our servers to query the following Hosts using NTP:
- 0.de.pool.ntp.org
- 1.de.pool.ntp.org
- 2.de.pool.ntp.org
- de.pool.ntp.org
Each of these hostnames has 12 IPs and they change every hour (round-robin)
Does it make sense to define a network group of 4 "DNS hostnames", when the IP-adresses change every hour?
(I want to define a packet-filter-rule to allow NTP-traffic to all of these 4 hostnames)
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