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It's easier to remember the IPs of good DNSes, too.
(lemmy.sdf.org)
Today in our newest take on "older technology is better": why NAT rules!
That and the IPv6 address on client systems will periodically rotate (privacy extensions), so the IPs used today won't necessarily be the ones used tomorrow.
(you can disable that of course, and it's usually disabled by default on server-focused OSes)