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Comment by VTimofeenko

3 days ago

Why not forbid going outside on port 53 and (optionally) redirect to the local DNS servers:

(nftables syntax)

ip saddr != @lan_dns ip daddr != @lan_dns udp dport 53 counter dnat ip to numgen inc mod 2 map { 0 : 192.168.1.1, 1 : 192.168.1.2 } comment "Force all DNS traffic to go through local DNS servers"

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