vps/roles/nftables/templates/nftables.conf

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Executable file

#!/usr/sbin/nft -f
flush ruleset
# Forward Syncthing relay traffic from port {{ ports['syncthing_relaysrv'] }} to 22067
table inet nat {
chain prerouting {
type nat hook prerouting priority dstnat;
iif eth0 tcp dport {{ ports['syncthing_relaysrv'] }} redirect to :22067
}
}
table inet filter {
chain input {
type filter hook input priority 0; policy drop;
iif lo accept
ct state invalid drop
ct state { established, related } accept
# Allow ICMP
meta l4proto icmp limit rate 1/second accept
meta l4proto ipv6-icmp limit rate 1/second accept
# HTTP/S
tcp dport { http, https } limit rate 5/second accept
# SSH
tcp dport 995 limit rate 15/minute accept
# Syncthing
tcp dport { {{ ports['syncthing_tcp'] }}, 22067 } limit rate 5/second accept
udp dport {{ ports['syncthing_udp'] }} limit rate 5/second accept
# Coturn
tcp dport { {{ ports['coturn_listening'] }}, {{ ports['coturn_tls_listening'] }} } limit rate 5/second accept
udp dport { {{ ports['coturn_listening'] }}, {{ ports['coturn_tls_listening'] }}, {{ ports['coturn_relay_min'] }}-{{ ports['coturn_relay_max'] }} } limit rate 5/second accept
}
chain forward {
type filter hook forward priority 0; policy accept;
}
chain output {
type filter hook output priority 0; policy accept;
}
}