3 files changed, 32 insertions, 1 deletions
diff --git a/modules/core/networking/default.nix b/modules/core/networking/default.nix
index 5e53759..608be0b 100644
--- a/modules/core/networking/default.nix
+++ b/modules/core/networking/default.nix
@@ -1,6 +1,9 @@
 { secrets, ... }:
 {
-  imports = [ ./tailscale.nix ];
+  imports = [
+    ./firewall
+    ./tailscale.nix
+  ];
 
   networking = {
     nftables.enable = true;
diff --git a/modules/core/networking/firewall/default.nix b/modules/core/networking/firewall/default.nix
new file mode 100644
index 0000000..2da2502
--- /dev/null
+++ b/modules/core/networking/firewall/default.nix
@@ -0,0 +1,10 @@
+{
+  imports = [ ./fail2ban.nix ];
+
+  networking.firewall = {
+    allowPing = false;
+    logReversePathDrops = true;
+    logRefusedConnections = false;
+    checkReversePath = "loose";
+  };
+}
diff --git a/modules/core/networking/firewall/fail2ban.nix b/modules/core/networking/firewall/fail2ban.nix
new file mode 100644
index 0000000..606b725
--- /dev/null
+++ b/modules/core/networking/firewall/fail2ban.nix
@@ -0,0 +1,18 @@
+{ pkgs, ... }:
+{
+  services.fail2ban = {
+    enable = false;
+
+    extraPackages = with pkgs; [
+      nftables
+      ipset
+    ];
+
+    ignoreIP = [
+      "10.0.0.0/8"
+      "172.16.0.0/12"
+      "100.64.0.0/16"
+      "192.168.0.0/16"
+    ];
+  };
+}