diff --git a/hosts/cesium/services/default.nix b/hosts/cesium/services/default.nix
index f1270a0..3580388 100644
--- a/hosts/cesium/services/default.nix
+++ b/hosts/cesium/services/default.nix
@@ -6,6 +6,7 @@
     ./gitea
     ./nginx
     ./ssh
+    ./fail2ban.nix
   ];
 
   networking.firewall = {
diff --git a/hosts/cesium/services/fail2ban.nix b/hosts/cesium/services/fail2ban.nix
new file mode 100644
index 0000000..34f81f7
--- /dev/null
+++ b/hosts/cesium/services/fail2ban.nix
@@ -0,0 +1,7 @@
+{...}: {
+  services.fail2ban = {
+    enable = true;
+    maxretry = 3;
+    bantime = "10m";
+  };
+}