From 6174f3650cf42aaf008012e828d5a1f8e2ce037f Mon Sep 17 00:00:00 2001
From: Leander Scherer <leander@schererleander.de>
Date: Thu, 8 Jan 2026 02:48:11 +0100
Subject: refactor(modules): separate nixos/home-manager modules, use standard
 option conventions

---
 modules/hosts/server/openssh/default.nix | 53 ++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 modules/hosts/server/openssh/default.nix

(limited to 'modules/hosts/server/openssh/default.nix')

diff --git a/modules/hosts/server/openssh/default.nix b/modules/hosts/server/openssh/default.nix
new file mode 100644
index 0000000..fbb15db
--- /dev/null
+++ b/modules/hosts/server/openssh/default.nix
@@ -0,0 +1,53 @@
+{
+  config,
+  username,
+  lib,
+  ...
+}:
+let
+  cfg = config.nx.server.openssh;
+  inherit (lib) mkOption types mkIf;
+in
+{
+  options.nx.server.openssh = {
+    enable = mkOption {
+      description = "Setup openssh for server";
+      type = types.bool;
+      default = false;
+    };
+    port = mkOption {
+      description = "Port for openssh";
+      type = types.port;
+      default = 8693;
+    };
+  };
+
+  config = mkIf cfg.enable {
+    services.openssh = {
+      enable = true;
+      ports = [ cfg.port ];
+      settings = {
+        PasswordAuthentication = false;
+        AllowUsers = [ username ];
+        X11Forwarding = false;
+        PermitRootLogin = "yes";
+      };
+    };
+    networking.firewall.allowedTCPPorts = [ cfg.port ];
+
+    services.fail2ban = {
+      jails = {
+        sshd = {
+          enabled = true;
+          settings = {
+            port = 8693;
+            backend = "systemd";
+            maxretry = 4;
+            findtime = "10m";
+            bantime = "1h";
+          };
+        };
+      };
+    };
+  };
+}
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