provisioning tool for building opinionated architecture
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table inet firewall {
chain input {
type filter hook input priority 0; policy drop;
# established/related connections
ct state established,related accept
# loopback + lxdbr0 interface
iifname lo accept
iifname lxdbr0 accept
# icmp
icmp type echo-request accept
# allow mDNS
udp dport mdns accept
# allow SSH + GITEA + NGINX
tcp dport {22, 2222, 80, 443} accept
}
}