graphene-os-server-infrastr.../nftables-matrix.conf
2022-07-18 22:14:35 -04:00

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#!/usr/bin/nft -f
flush ruleset
table inet filter {
chain prerouting-raw {
type filter hook prerouting priority raw
iif lo notrack
tcp dport {22, 80, 443} notrack
meta l4proto {icmp, ipv6-icmp} notrack
}
chain output-raw {
type filter hook output priority raw
oif lo notrack
tcp sport {22, 80, 443} notrack
meta l4proto {icmp, ipv6-icmp} notrack
}
chain input {
type filter hook input priority filter
policy drop
iif lo accept
tcp dport {22, 80, 443} accept
meta l4proto {icmp, ipv6-icmp} accept
ct state vmap { invalid : drop, established : accept, related : accept }
meta l4proto udp reject
meta l4proto tcp reject with tcp reset
reject
}
chain forward {
type filter hook forward priority filter
policy drop
}
chain output {
type filter hook output priority filter
skuid postgres oif lo meta l4proto udp accept
skuid mjolnir oif lo tcp dport 8008 accept
skuid != {root, systemd-network, chrony, unbound, http, synapse, matterbridge} counter goto output-reject
}
chain output-reject {
meta l4proto udp reject
meta l4proto tcp reject with tcp reset
reject
}
}