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#!/usr/bin/nft -f
# ipv4/ipv6 Simple & Safe Firewall
# you can find examples in /usr/share/nftables/
table inet filter {
chain input {
type filter hook input priority 0;
# allow established/related connections
ct state {established, related} accept
# early drop of invalid connections
ct state invalid drop
# allow from loopback
iifname lo accept
# allow icmp
ip protocol icmp accept
ip6 nexthdr icmpv6 accept
# allow ssh
tcp dport ssh accept
# everything else
reject with icmpx type port-unreachable
}
chain forward {
type filter hook forward priority 0;
drop
}
chain output {
type filter hook output priority 0;
}
}
# vim:set ts=2 sw=2 et:
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