change to firewall and dns
This commit is contained in:
@@ -167,6 +167,13 @@
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data = "10.42.99.1";
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}
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];
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reservations = [
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{
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hw-address = "c4:a7:2b:c7:ea:30";
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ip-address = "10.42.97.10";
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server-hostname = "metz.cloonar.com";
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}
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];
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}
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{
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pools = [
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@@ -2,118 +2,12 @@
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networking = {
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firewall.checkReversePath = false;
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nat.enable = false;
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# nftables = {
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# enable = true;
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# tables = {
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# "cloonar-fw" = {
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# family = "inet";
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# content = ''
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# chain output {
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# type filter hook output priority 100; policy accept;
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# }
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#
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# chain input {
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# type filter hook input priority filter; policy drop;
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#
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# # accept any localhost traffic
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# iifname lo accept
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#
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# # Allow trusted networks to access the router
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# iifname {
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# "wan", # disable when final
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# "lan",
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# "wg_cloonar"
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# } counter accept
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#
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# # Allow networks to access the dns and dhcp
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# iifname {
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# "lan",
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# "vb-*",
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# "podman0",
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# "infrastructure",
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# "wg_cloonar",
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# "smart",
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# "multimedia"
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# } udp dport { 53, 67, 68 } counter accept
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# iifname {
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# "lan",
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# "podman0",
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# "vb-*",
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# "infrastructure",
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# "wg_cloonar",
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# "smart",
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# "multimedia"
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# } tcp dport { 80, 443, 853 } counter accept
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#
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# # Accept mDNS for avahi reflection
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# # iifname "multimedia" ip saddr <chromecast IP> tcp dport { llmnr } counter accept
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# # iifname "multimedia" ip saddr <chromecast IP> udp dport { mdns, llmnr } counter accept
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#
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# # Allow returning traffic from wg_cloonar and drop everthing else
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# iifname "wg_cloonar" ct state { established, related } counter accept
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# iifname "wg_cloonar" drop
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#
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# iifname "wan" ct state { established, related } accept comment "Allow established traffic"
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# iifname "wan" icmp type { echo-request, destination-unreachable, time-exceeded } counter accept comment "Allow select ICMP"
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# iifname "wan" counter drop comment "Drop all other unsolicited traffic from wan"
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# }
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#
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# chain forward {
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# type filter hook forward priority filter; policy drop;
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#
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# # enable flow offloading for better throughput
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# # ip protocol { tcp, udp } flow offload @f
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#
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# # multimedia airplay
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# iifname "multimedia" oifname { "lan" } counter accept
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#
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# # lan and vpn to any
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# # TODO: disable wan when finished
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# iifname { "wan", "lan", "vb-*", "podman0", "wg_cloonar" } oifname { "lan", "vb-*", "podman0", "infrastructure", "multimedia", "smart", "wrwks", "wg_cloonar", "wg_epicenter", "wg_ghetto_at" } counter accept
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# iifname { "infrastructure" } oifname { "podman0", "vb-omada" } counter accept
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#
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# # Allow trusted network WAN access
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# iifname {
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# "lan",
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# "infrastructure",
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# "vb-*",
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# "podman0",
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# "multimedia",
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# "smart",
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# "wg_cloonar",
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# } oifname {
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# "wan",
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# } counter accept comment "Allow trusted LAN to WAN"
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# }
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# '';
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# };
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# "cloonar-nat" = {
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# family = "ip";
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# content = ''
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# chain prerouting {
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# type nat hook prerouting priority filter; policy accept;
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# }
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#
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# # Setup NAT masquerading on external interfaces
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# chain postrouting {
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# type nat hook postrouting priority filter; policy accept;
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# oifname { "wan", "wrwks", "wg_epicenter", "wg_ghetto_at" } masquerade
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# # iifname { "vb-*" } oifname { "server" } masquerade comment "from internal interfaces"
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# }
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# ''
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# };
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# };
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# };
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nftables = {
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enable = true;
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ruleset = ''
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table inet filter {
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# enable flow offloading for better throughput
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# flowtable f {
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# hook ingress priority 0;
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# devices = { lan, server, wg_cloonar, smart, multimedia, guest };
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# }
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tables = {
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"cloonar-fw" = {
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family = "inet";
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content = ''
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chain output {
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type filter hook output priority 100; policy accept;
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}
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@@ -132,66 +26,16 @@
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}
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chain input-allow {
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iifname "wan" udp dport 51820 counter accept comment "Wireguard traffic"
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iifname "wg_cloonar" counter accept comment "test wireguard"
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# drop new connections over rate limit
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udp dport != { 53, 5353 } ct state new limit rate over 1/second burst 10 packets drop
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# accept any localhost traffic
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udp dport != { 53, 5353 } ct state new limit rate over 1/second burst 10 packets drop comment "rate limit for new connections"
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iifname lo accept
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# Allow trusted networks to access the router
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iifname {
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"wg_cloonar"
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} counter accept
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iifname {
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"server",
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"vserver",
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"lan",
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} counter accept
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# Allow networks to access dhcp
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iifname {
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"lan",
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"server",
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"vserver",
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"infrastructure",
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"smart",
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"podman*",
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"multimedia"
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} udp dport { 67, 68 } counter accept
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# Allow networks to access dns
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iifname {
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"lan",
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"server",
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"vserver",
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"infrastructure",
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"smart",
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"podman*",
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"multimedia"
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} udp dport { 53 } counter accept
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# allow audio system to access snapserver
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iifname {
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"server",
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"smart",
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"multimedia"
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} tcp dport { 1704, 1705 } counter accept
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# allow airplay access
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iifname "lan" tcp dport { 5000, 5353 } counter accept
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iifname "lan" udp dport { 5000, 5353, 6001 - 6011 } counter accept
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iifname "wan" udp dport 51820 counter accept comment "Wireguard traffic"
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iifname { "server", "vserver", "lan", "wg_cloonar" } counter accept comment "allow trusted to router"
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iifname { "multimedia", "smart" } udp dport { 53, 5353 } counter accept comment "DNS"
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# Accept mDNS for avahi reflection
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iifname "server" ip saddr 10.42.97.20/32 tcp dport { llmnr } counter accept
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iifname "server" ip saddr 10.42.97.20/32 udp dport { mdns, llmnr } counter accept
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# accept palword server
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iifname { "wan", "lan" } udp dport { 8211, 27015 } counter accept
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# Allow all returning traffic
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ct state { established, related } counter accept
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@@ -262,16 +106,17 @@
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"podman*",
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"guest",
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"vb-*",
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"ve-*",
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} oifname {
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"wan",
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} counter accept comment "Allow trusted LAN to WAN"
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limit rate 60/minute burst 100 packets log prefix "Forward - Drop: " comment "Log any unmatched traffic"
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}
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}
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table ip nat {
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'';
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};
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"cloonar-nat" = {
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family = "ip";
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content = ''
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chain prerouting {
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type nat hook prerouting priority filter; policy accept;
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iifname "wan" tcp dport { 22, 80, 443 } dnat to 10.42.97.50
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@@ -283,32 +128,9 @@
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oifname { "wan", "wg_cloonar", "wrwks", "wg_epicenter", "wg_ghetto_at" } masquerade
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ip daddr 10.42.97.50 masquerade
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}
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}
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'';
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};
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};
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systemd.services.nftables-fix = {
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description = "Delete nixos-fw table";
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after = [ "nftables.service" ];
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serviceConfig = let
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fixScript = pkgs.writeTextFile {
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name = "nftables-fix";
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executable = true;
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text = ''
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#! ${pkgs.nftables}/bin/nft -f
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delete table inet nixos-fw
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'';
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};
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in {
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Name = "nftables-fix";
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PartOf = "nftables.service";
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Type = "oneshot";
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ExecStart= [ fixScript ];
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StateDirectory = "nftables";
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};
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};
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}
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@@ -73,7 +73,7 @@ let
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"\"upgrade-staging.wienbautvor.at IN A 10.254.240.110\""
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"\"upgrade-staging.wienwohntbesser.at IN A 10.254.240.110\""
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"\"metz.cloonar.com IN A 10.42.96.167\""
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"\"metz.cloonar.com IN A 10.42.99.10\""
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"\"firetv-living.cloonar.com IN A 10.42.96.175\""
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"\"ps5-living.cloonar.com IN A 10.42.96.176\""
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@@ -220,4 +220,6 @@ in {
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partOf = [ "unbound.service" ];
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wantedBy = [ "multi-user.target" ];
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};
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networking.firewall.allowedUDPPorts = [ 53 5353 ];
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}
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@@ -48,4 +48,6 @@
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];
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};
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};
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networking.firewall.allowedUDPPorts = [ 51820 ];
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}
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Reference in New Issue
Block a user