fixing fail2ban and set up ssh + tor on chungus

components/network/default.nix

@@ -11,7 +11,6 @@ with types;
 
   imports = [
     #./avahi.nix
-    ./fail2ban.nix
     ./hosts.nix
     ./nginx.nix
     ./sshd

components/network/sshd/default.nix

@@ -11,7 +11,6 @@ let
     echo "${config.networking.hostName}" | boxes -d ansi -s 80x1 -a r > $out
   '';
 
-
 in
 {
 
@@ -31,10 +30,6 @@ in
       default = [ ];
       description = "keys to root login";
     };
-    sshguard.enable = mkOption {
-      type = bool;
-      default = config.components.network.sshd.enable;
-    };
     onlyTincAccess = mkOption {
       type = bool;
       default = false;
@@ -71,12 +66,6 @@ in
 
     })
 
-    (mkIf cfg.sshguard.enable {
-      environment.systemPackages = [ pkgs.ipset ];
-      services.sshguard.enable = lib.mkDefault true;
-      #boot.kernelModules = ["xt_set"];
-    })
-
     (mkIf (cfg.onlyTincAccess && cfg.enable) {
       networking.firewall.extraCommands = ''
         iptables --table nat --append PREROUTING ! --in-interface tinc.+ --protocol tcp --match tcp --dport 22 --jump REDIRECT --to-ports 0

components/network/sshd/known-hosts-zerotier.nix

@@ -9,9 +9,6 @@ let
     (machine:
       {
         hostNames = [
-          "[${machine}]:2222"
-          "[${machine}.${tld}]:2222"
-          "[${machine}.private]:2222"
           "${machine}"
           "${machine}.${tld}"
           "${machine}.private"
@@ -19,6 +16,19 @@ let
         publicKey = publicKey machine;
       }
     );
+  bootMachines = clanLib.readFactFromAllMachines "ssh.boot.id_ed25519.pub";
+  knownBootHosts = lib.mapAttrs'
+    (machine: publicKey: nameValuePair
+      "boot_${machine}"
+      {
+        inherit publicKey;
+        hostNames = [
+          "[${machine}]:2222"
+          "[${machine}.public]:2222"
+        ];
+      }
+    )
+    bootMachines;
 in
 {
 
@@ -30,6 +40,6 @@ in
   };
 
   config = mkIf config.components.network.zerotier.enable {
-    services.openssh.knownHosts = knownHosts;
+    services.openssh.knownHosts = knownHosts // knownBootHosts;
   };
 }

features/boot/ssh.nix

@@ -21,6 +21,7 @@ with types;
     # ssh host key
     clan.core.facts.services."boot.ssh" = factsGenerator.ssh { name = "boot"; };
 
+    # todo: maybe put this in a component
     # boot
     boot.initrd.systemd.enable = true;
     boot.initrd.systemd.contents."/etc/hostname".text = "unlock.${config.networking.hostName}";

features/default.nix

@@ -1,3 +1,6 @@
 {
-  imports = [ ./boot ];
+  imports = [
+    ./boot
+    ./network
+  ];
 }

features/network/default.nix

@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./fail2ban.nix
+    ./sshguard.nix
+  ];
+}

features/network/fail2ban.nix

@@ -1,14 +1,14 @@
 { config, lib, pkgs, ... }:
 with lib;
 {
-  options.components.network.fail2ban.enable = mkOption {
+  options.features.network.fail2ban.enable = mkOption {
     type = lib.types.bool;
     default = false;
   };
 
   config = mkMerge [
-    (mkIf config.components.network.fail2ban.enable {
-      environment.systemPackages = [ pkgs.fail2ban pkgs.ipset ];
+    (mkIf config.features.network.fail2ban.enable {
+      environment.systemPackages = [ pkgs.fail2ban ];
       services.fail2ban = {
         enable = true;
         #package = pkgs.legacy_2311.fail2ban;
@@ -19,7 +19,7 @@ with lib;
     # custom defined jails
     # --------------------
     # https://github.com/fail2ban/fail2ban/blob/master/config/jail.conf
-    (mkIf config.components.network.fail2ban.enable {
+    (mkIf config.features.network.fail2ban.enable {
       services.fail2ban.jails.nginx-git-not-found.settings = {
         port = "http,https";
         logpath = "%(nginx_error_log)s";
@@ -33,7 +33,7 @@ with lib;
         '';
       };
     })
-    (mkIf config.components.network.fail2ban.enable {
+    (mkIf config.features.network.fail2ban.enable {
       services.fail2ban.jails.nginx-git-bad-request.settings = {
         port = "http,https";
         logpath = "%(nginx_error_log)s";

features/network/sshguard.nix

@@ -0,0 +1,18 @@
+{ pkgs, config, lib, assets, ... }:
+with lib;
+with types;
+{
+
+  options.features.network.sshguard = {
+    enable = mkOption {
+      type = bool;
+      default = false;
+    };
+  };
+
+  config = mkIf config.features.network.sshguard.enable {
+    environment.systemPackages = [ pkgs.ipset ];
+    services.sshguard.enable = true;
+  };
+
+}

machines/cherry/configuration.nix

@@ -43,7 +43,6 @@
   components.media.enable = true;
   components.media.tts-client.enable = false;
   components.network.enable = true;
-  components.network.sshd.sshguard.enable = false;
   components.network.wifi.enable = true;
   components.terminal.enable = true;
 

machines/chungus/configuration.nix

@@ -55,7 +55,9 @@
   components.network.wifi.enable = false;
   components.terminal.enable = true;
 
+  features.boot.ssh.enable = true;
   features.boot.ssh.kernelModules = [ "e1000e" ];
+  features.boot.tor.enable = true;
 
   components.monitor.enable = true;
   components.monitor.opentelemetry.receiver.endpoint = "0.0.0.0:4317";
@@ -68,7 +70,6 @@
 
   networking.hostName = "chungus";
 
-
   hardware.graphics.enable = true;
   hardware.graphics.enable32Bit = true;
   hardware.graphics.extraPackages = with pkgs; [

machines/chungus/hardware-configuration/default.nix

@@ -7,6 +7,7 @@
 
   boot.loader.efi.canTouchEfiVariables = true;
   boot.loader.systemd-boot.enable = true;
+
   boot.tmp.useTmpfs = true; # make /tmp a tmpfs (performance!)
 
   boot.supportedFilesystems = [ "zfs" ];

machines/orbi/configuration.nix

@@ -47,9 +47,7 @@
   components.network.nginx.landingpage.enable = false;
   components.network.wifi.enable = false;
 
-  components.network.fail2ban.enable = true;
-  components.network.sshd.sshguard.enable = false;
-
+  features.network.fail2ban.enable = true;
   features.boot.ssh.enable = true;
 
   components.monitor.enable = true;