| iptables-translate -A INPUT -p udp -i eth0 --sport 53 -j ACCEPT |
| nft add rule ip filter INPUT iifname eth0 udp sport 53 counter accept |
| |
| iptables-translate -A OUTPUT -p udp -o eth0 --dport 53:66 -j DROP |
| nft add rule ip filter OUTPUT oifname eth0 udp dport 53-66 counter drop |
| |
| iptables-translate -I OUTPUT -p udp -d 8.8.8.8 -j ACCEPT |
| nft insert rule ip filter OUTPUT ip protocol udp ip daddr 8.8.8.8 counter accept |
| |
| iptables-translate -I OUTPUT -p udp --dport 1020:1023 --sport 53 -j ACCEPT |
| nft insert rule ip filter OUTPUT udp sport 53 udp dport 1020-1023 counter accept |