hosts/clerie-backup: Replicate backups with restic instead of borgbackup

configuration/common/default.nix

@@ -8,7 +8,6 @@
     ./locale.nix
     ./networking.nix
     ./programs.nix
-    ./ssh.nix
     ./systemd.nix
     ./user.nix
   ];

configuration/common/ssh.nix

@@ -1,16 +0,0 @@
-{ lib, ... }:
-
-{
-
-  services.openssh.enable = true;
-  services.openssh.settings = {
-    PasswordAuthentication = false;
-    KbdInteractiveAuthentication = false;
-    PermitRootLogin = lib.mkDefault "no";
-  };
-  services.openssh.hostKeys = lib.mkForce [
-    # Only create ed25519 host keys
-    { type = "ed25519"; path = "/etc/ssh/ssh_host_ed25519_key"; }
-  ];
-
-}

flake.lock

@@ -269,11 +269,11 @@
         "nixpkgs": "nixpkgs_3"
       },
       "locked": {
-        "lastModified": 1751801455,
+        "lastModified": 1759516991,
-        "narHash": "sha256-hUJqtS88SbNQQSEJAPFyY2vLMh8yA8rQ6jbul50p64M=",
+        "narHash": "sha256-esoe/uYPyy4a6hAwZq1QgkSe7dnZ5c0zHHXDq/JG9Yk=",
         "ref": "lix-2.93",
-        "rev": "b940aca430a7ca41f70bdb320659dd62026fe0e9",
+        "rev": "b1328322a49e8e153635ea8b3b602db363de727f",
-        "revCount": 4261,
+        "revCount": 4284,
         "type": "git",
         "url": "https://git.lix.systems/lix-project/hydra.git"
       },
@@ -301,11 +301,11 @@
         "pre-commit-hooks": "pre-commit-hooks"
       },
       "locked": {
-        "lastModified": 1751235704,
+        "lastModified": 1757791921,
-        "narHash": "sha256-Jzm3KPZ2gL+0Nl3Mw/2E0B3vqDDi1Xt5+9VCXghUDZ8=",
+        "narHash": "sha256-83qbJckLOLrAsKO88UI9N4QRatNEc3gUFtLMiAPwK0g=",
         "ref": "release-2.93",
-        "rev": "f3a7bbe5f8d1a8504ddb6362d50106904523e440",
+        "rev": "b7c2f17e9133e8b85d41c58b52f9d4e3254f41da",
-        "revCount": 17874,
+        "revCount": 17892,
         "type": "git",
         "url": "https://git.lix.systems/lix-project/lix"
       },
@@ -327,11 +327,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1753282722,
+        "lastModified": 1756125859,
-        "narHash": "sha256-KYMUrTV7H/RR5/HRnjV5R3rRIuBXMemyJzTLi50NFTs=",
+        "narHash": "sha256-6a+PWILmqHCs9B5eIBLg6HSZ8jYweZpgOWO8FlyVwYI=",
         "ref": "release-2.93",
-        "rev": "46a9e8fcfe4be72b4c7c8082ee11d2c42da1e873",
+        "rev": "d3292125035b04df00d01549a26e948631fabe1e",
-        "revCount": 149,
+        "revCount": 156,
         "type": "git",
         "url": "https://git.lix.systems/lix-project/nixos-module.git"
       },
@@ -353,11 +353,11 @@
         "pre-commit-hooks": "pre-commit-hooks_2"
       },
       "locked": {
-        "lastModified": 1753306924,
+        "lastModified": 1759940703,
-        "narHash": "sha256-jLCEW0FvjFhC+c4RHzH+xbkSOxrnpFHnhjOw6sudhx0=",
+        "narHash": "sha256-/dXDCzYnQbkqCsvUDIxgIH4BS/fyxIu73m2v4ftJLXQ=",
         "ref": "release-2.93",
-        "rev": "1a4393d0aac31aba21f5737ede1b171e11336d77",
+        "rev": "75c03142049242a5687309e59e4f356fbc92789a",
-        "revCount": 17884,
+        "revCount": 17894,
         "type": "git",
         "url": "https://git.lix.systems/lix-project/lix.git"
       },
@@ -634,11 +634,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1751582995,
+        "lastModified": 1759281824,
-        "narHash": "sha256-u7ubvtxdTnFPpV27AHpgoKn7qHuE7sgWgza/1oj5nzA=",
+        "narHash": "sha256-FIBE1qXv9TKvSNwst6FumyHwCRH3BlWDpfsnqRDCll0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "7a732ed41ca0dd64b4b71b563ab9805a80a7d693",
+        "rev": "5b5be50345d4113d04ba58c444348849f5585b4a",
         "type": "github"
       },
       "original": {
@@ -666,11 +666,11 @@
     },
     "nixpkgs_5": {
       "locked": {
-        "lastModified": 1761373498,
+        "lastModified": 1761114652,
-        "narHash": "sha256-Q/uhWNvd7V7k1H1ZPMy/vkx3F8C13ZcdrKjO7Jv7v0c=",
+        "narHash": "sha256-f/QCJM/YhrV/lavyCVz8iU3rlZun6d+dAiC3H+CDle4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6a08e6bb4e46ff7fcbb53d409b253f6bad8a28ce",
+        "rev": "01f116e4df6a15f4ccdffb1bcd41096869fb385c",
         "type": "github"
       },
       "original": {

hosts/carbon/configuration.nix

@@ -6,6 +6,7 @@
       ./hardware-configuration.nix
 
       ./dns.nix
+      ./ds-lite-ncfttb.nix
       ./mdns.nix
       ./net-dsl.nix
       ./net-gastnetz.nix
@@ -16,7 +17,7 @@
       ./net-printer.nix
       ./net-voip.nix
       ./ntp.nix
-      ./ppp.nix
+      ./ppp-ncfttb.nix
       ./scan-to-gpg.nix
       ./wg-clerie.nix
     ];

hosts/carbon/ds-lite-ncfttb.nix

@@ -0,0 +1,18 @@
+{ ... }:
+
+{
+
+  profiles.clerie.ds-lite = {
+    enable = true;
+    wanInterfaceName = "ppp-ncfttb";
+    tunnelInterfaceName = "ds-lite-ncfttb";
+    lanInterfaces = [
+      {
+        name = "net-heimnetz";
+        sla_id = 201;
+        prefix_len = 64;
+      }
+    ];
+  };
+
+}

hosts/clerie-backup/configuration.nix

@@ -5,6 +5,7 @@
     [
       ./hardware-configuration.nix
 
+      ./replication.nix
       ./restic-server.nix
     ];
 
@@ -36,30 +37,6 @@
     };
   };
 
-  # fix borgbackup primary grouping
-  users.users.borg.group = "borg";
-
-  services.borgbackup.jobs = {
-    backup-replication-hetzner = {
-      paths = [
-        "/mnt/clerie-backup"
-      ];
-      doInit = true;
-      repo = "u275370-sub2@u275370.your-storagebox.de:./clerie-backup/";
-      encryption = {
-        mode = "none";
-      };
-      environment = { BORG_RSH = "ssh -p 23 -i /var/src/secrets/ssh/borg-backup-replication-hetzner"; };
-      compression = "auto,lzma";
-      startAt = "*-*-* 04:07:00";
-
-      readWritePaths = [ "/var/lib/prometheus-node-exporter/textfiles" ];
-      postPrune = ''
-        echo "backup_replication_hetzner_last_successful_run_time $(date +%s)" > /var/lib/prometheus-node-exporter/textfiles/backup-replication-hetzner.prom
-      '';
-    };
-  };
-
   clerie.monitoring = {
     enable = true;
     id = "204";

hosts/clerie-backup/replication.nix

@@ -0,0 +1,23 @@
+{ lib, ... }:
+
+with lib;
+
+{
+  clerie.backup = {
+    enable = true;
+    targets = mkForce {
+      hetzner-storage-box = {
+        serverUrl = "sftp://u275370-sub2@u275370.your-storagebox.de:23";
+        sshKeyFile = "/var/src/secrets/ssh/borg-backup-replication-hetzner";
+      };
+    };
+    jobs.replication = {
+      paths = [
+        "/mnt/clerie-backup/cyan"
+      ];
+      exclude = [
+        "/mnt/clerie-backup/cyan/.htpasswd"
+      ];
+    };
+  };
+}

hosts/clerie-backup/secrets.json

@@ -1,19 +1,16 @@
 {
+	"clerie-backup-job-replication": "ENC[AES256_GCM,data:J9zWkW1xGUiK73M=,iv:0PCJW1qrOMlX0Twy2HXGmqFzyXknE4dVdpJnnEbW36U=,tag:yxIdsqMHZgHLUIN+JCcZ6A==,type:str]",
 	"restic-server-cyan-htpasswd": "ENC[AES256_GCM,data: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,iv:Gfg3t3YPw2hz0LJ5hovPftMYOADN2Xjc93VmT2fFVQI=,tag:k6KH4qDPrFYIU2PGgW3F9Q==,type:str]",
 	"wg-monitoring": "ENC[AES256_GCM,data:rOpBlDt9K//zlgWo1Bw9IX5jmpLbnit5zi60Ulz8f6tHwqVsKJv5NkxYc9A=,iv:Jlo0QZP6R1CEE20iLa7M/LV/ZX2/33oMv/FzBBo6nvY=,tag:Ttqo7BKd6RuUiMksW6rZnw==,type:str]",
 	"sops": {
-		"kms": null,
-		"gcp_kms": null,
-		"azure_kv": null,
-		"hc_vault": null,
 		"age": [
 			{
 				"recipient": "age1px682xeu0xfkr49qdqe95er040p2vv3ugekk04e36jj2wqs7tyfs8mhclh",
 				"enc": "-----BEGIN AGE ENCRYPTED FILE-----\nYWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB0UCtUZ3NZQWxOK1FUNDhL\nbWhaanN2OEJIVmpMOURzWU1vcGhuODdtcDJnCm9Nb01NaVVpWDJ6Q3JCbXRkRUJP\nUVdFaGVScUdxRnlpSnRNOG1RalNRaFUKLS0tICs0cW1WR0JMUmdaVWVzdTh2bjFm\nenBzaERpb1hCS1E3TUo3cmxpZFUxWmcKcLL5/YTGyZEVLwHSpbEI5XfWGklkI7h+\n0uhCww8Wh23EpUYFslZ0Nnbf5HX5/Z34qBwf20cvN8eLToTAQvTdeg==\n-----END AGE ENCRYPTED FILE-----\n"
 			}
 		],
-		"lastmodified": "2025-02-16T18:13:34Z",
+		"lastmodified": "2025-11-16T16:13:47Z",
-		"mac": "ENC[AES256_GCM,data:io2WVxTxHSlxrk7JaN6/fUI7YotvPfgbXTD1lEf1tN7QhuGRH/iZrji/VQlhJ8tk2dAS1Pe0rsTuxCMXcXcxRIh4EYbQky5IZj5jpfPcslQOquTcXzmPYdijPUWSqu6leGc0GG/7KccjSFD8TfwAgeuVrc2Br57yfqKoPf+M0fY=,iv:iYp73PrFnLZoI9014mbqQQERhFtfhb5YmzV6HiUi+YM=,tag:2AZEzhVVdEos5FLkg8cr5w==,type:str]",
+		"mac": "ENC[AES256_GCM,data:ksW2wq/EWTi9dKppGhEheVQ74G6riy1asiDmdsC78bfeAJHTbXqlni5u11DIbo67sdpZE+xXJiB1woLEcG0B4wS92r5MIWhQrul+ot95UnwVFceYLkO4KLxgOjlJzgHKuWq/ccOoKnucd/vmagQ5E/4ubBXMOHvHVLL4dNYOsDo=,iv:unLO6F/b1mAIefWfvD0PW840pTWUULgwJSl6mh637q4=,tag:0dlOFTAmLZc7oXJ25SeH1A==,type:str]",
 		"pgp": [
 			{
 				"created_at": "2024-05-05T12:12:27Z",
@@ -22,6 +19,6 @@
 			}
 		],
 		"unencrypted_suffix": "_unencrypted",
-		"version": "3.8.1"
+		"version": "3.11.0"
 	}
 }

modules/backup/default.nix

@@ -60,16 +60,19 @@ let
         config.sops.secrets."clerie-backup-job-${jobName}".path;
       repoPath = if jobOptions.repoPath == null then "/${config.networking.hostName}/${jobName}" else jobOptions.repoPath;
       targetPasswordFile = if targetOptions.passwordFile != null then targetOptions.passwordFile else
-        config.sops.secrets."clerie-backup-target-${targetName}".path;
+        config.sops.secrets."clerie-backup-target-${targetName}".path or null;
       targetUsername = if targetOptions.username == null then config.networking.hostName else targetOptions.username;
     in {
       "clerie-backup/${jobName}-${targetName}/repo_password".source = jobPasswordFile;
       "clerie-backup/${jobName}-${targetName}/repo_url".text = "${targetOptions.serverUrl}${repoPath}";
       "clerie-backup/${jobName}-${targetName}/auth_username".text = targetUsername;
-      "clerie-backup/${jobName}-${targetName}/auth_password".source = targetPasswordFile;
       "clerie-backup/${jobName}-${targetName}/files".text = concatStringsSep "\n" jobOptions.paths;
       "clerie-backup/${jobName}-${targetName}/excludes".text = concatStringsSep "\n" jobOptions.exclude;
-    }
+    } // (if targetPasswordFile == null then {} else {
+      "clerie-backup/${jobName}-${targetName}/auth_password".source = targetPasswordFile;
+    }) // (if targetOptions.sshKeyFile == null then {} else {
+      "clerie-backup/${jobName}-${targetName}/ssh_key".source = targetOptions.sshKeyFile;
+    })
   ) jobTargetPairs);
 
   targetOptions = { ... }: {
@@ -85,6 +88,10 @@ let
       serverUrl = mkOption {
         type = types.str;
       };
+      sshKeyFile = mkOption {
+        type = with types; nullOr str;
+        default = null;
+      };
     };
   };
 

monitoring/targets.json

@@ -48,5 +48,8 @@
   },
   "cleriewi.uber.space": {
     "clerie-uberspace": { "enable": true }
+  },
+  "reichart.uber.space": {
+    "clerie-uberspace": { "enable": true }
   }
 }

pkgs/clerie-backup/clerie-backup.sh

@@ -45,30 +45,39 @@ if [[ ! -f "${CONFIG_DIR}/auth_username" ]]; then
 	echo "File ${CONFIG_DIR}/auth_username not found"
 	ISSUE_EXIST=1
 fi
-if [[ ! -f "${CONFIG_DIR}/auth_password" ]]; then
-	echo "File ${CONFIG_DIR}/auth_password not found"
-	ISSUE_EXIST=1
-fi
 if [[ -n "${ISSUE_EXIST}" ]]; then
 	exit 1
 fi
 
 RESTIC_PASSWORD_FILE="${CONFIG_DIR}/repo_password"
 export RESTIC_PASSWORD_FILE
-RESTIC_REPOSITORY="rest:$(cat "${CONFIG_DIR}/repo_url")"
+REPO_URL="$(cat "${CONFIG_DIR}/repo_url")"
+if [[ "${REPO_URL}" == http* ]]; then
+	RESTIC_REPOSITORY="rest:${REPO_URL}"
+else
+	RESTIC_REPOSITORY="${REPO_URL}"
+fi
 export RESTIC_REPOSITORY
 RESTIC_REST_USERNAME="$(cat "${CONFIG_DIR}/auth_username")"
 export RESTIC_REST_USERNAME
-RESTIC_REST_PASSWORD="$(cat "${CONFIG_DIR}/auth_password")"
+if [[ -e "${CONFIG_DIR}/auth_password" ]]; then
-export RESTIC_REST_PASSWORD
+	RESTIC_REST_PASSWORD="$(cat "${CONFIG_DIR}/auth_password")"
+	export RESTIC_REST_PASSWORD
+fi
 RESTIC_PROGRESS_FPS="0.1"
 export RESTIC_PROGRESS_FPS
 RESTIC_CACHE_DIR="/var/cache/restic"
 export RESTIC_CACHE_DIR
 
+EXTRA_OPTIONS=()
+
+if [[ -e "${CONFIG_DIR}/ssh_key" ]]; then
+	EXTRA_OPTIONS+=("-o" "sftp.args='-o IdentityFile=${CONFIG_DIR}/ssh_key'")
+fi
+
 case "${ACTION}" in
 restic)
-	restic "$@"
+	restic "${EXTRA_OPTIONS[@]}" "$@"
 	;;
 backup)
 	ISSUE_EXIST=
@@ -84,9 +93,9 @@ backup)
 		exit 1
 	fi
 
-        restic snapshots --latest 1 || restic init
+        restic "${EXTRA_OPTIONS[@]}" snapshots --latest 1 || restic "${EXTRA_OPTIONS[@]}" init
 
-        restic backup --exclude-file "${CONFIG_DIR}/excludes" --files-from "${CONFIG_DIR}/files"
+        restic "${EXTRA_OPTIONS[@]}" backup --exclude-file "${CONFIG_DIR}/excludes" --files-from "${CONFIG_DIR}/files"
 	;;
 *)
 	echo "Unsupported ACTION: ${ACTION}"

pkgs/clerie-ssh-known-hosts/additional-ssh-known-hosts

@@ -0,0 +1,10 @@
+backup.clerie.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBsTlqDyK726hwhX8lbs9EhMrkf3LsKIm5Ya3k39C7VZ
+git.clerie.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIHQDwfRlw6L+pkLjXDgW2BUWlY1zNEDtVhNEsClgqaL
+
+mercury.net.clerie.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIH4HbnxUyBAxidh88rIvG9tf61/VWjndMLOSvx9LZY+u
+
+clerie.uber.space ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINT6gukzAjyu8ST6ndP5TgXWEfdksxyqmMz4ngQkyVLr
+cleriewi.uber.space ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIH3k7sMhABfQr9CufavOY6BCXJPpDH5OFkRpz/vJ2gSF
+
+ceea.uber.space ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJg2Vr3/SucAM13pZGR36W/LPFcTI9nCQAIIATIZGL9A
+reichart.uber.space ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINhafJF7TZPAhX1hj4saom21RqkOMVFF7bLVKaEC+vcB

pkgs/clerie-ssh-known-hosts/default.nix

@@ -10,7 +10,6 @@ let
     sshPubkey = stripR (builtins.readFile (../../hosts + "/${hostname}/ssh.pub"));
   }) hostsWithSshPubkey;
   knownHosts = builtins.concatStringsSep "" (builtins.map ({name, sshPubkey}: ''
-    ${name} ${sshPubkey}
     ${name}.net.clerie.de ${sshPubkey}
   '') sshkeyList);
 in writeTextFile {
@@ -18,5 +17,9 @@ in writeTextFile {
   destination = "/known_hosts";
   allowSubstitutes = true;
   preferLocalBuild = false;
-  text = knownHosts;
+  text = ''
+    ${knownHosts}
+
+    ${builtins.readFile ./additional-ssh-known-hosts}
+  '';
 }

pkgs/ds-lite-dhcpcd-hook/default.nix

@@ -0,0 +1,12 @@
+{ pkgs, ... }:
+
+pkgs.writeShellApplication {
+  name = "ds-lite-dhcpcd-hook";
+  text = builtins.readFile ./ds-lite-dhcpcd-hook.sh;
+  runtimeInputs = with pkgs; [
+    iproute2
+    jq
+    dig
+    gawk
+  ];
+}

pkgs/ds-lite-dhcpcd-hook/ds-lite-dhcpcd-hook.sh

@@ -0,0 +1,102 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# Setting up required environment variables
+# shellcheck disable=SC2154
+WAN_INTERFACE_NAME="${DS_LITE_WAN_INTERFACE_NAME}"
+# shellcheck disable=SC2154
+TUNNEL_INTERFACE_NAME="${DS_LITE_TUNNEL_INTERFACE_NAME}"
+
+log_dhcp () {
+	echo "<ds-lite-dhcpcd-hook> ${WAN_INTERFACE_NAME}: $1"
+}
+
+log_tunnel () {
+	echo "<ds-lite-dhcpcd-hook> ${WAN_INTERFACE_NAME} (${TUNNEL_INTERFACE_NAME}): $1"
+}
+
+# Check if the event calling this hook is for the wan interface
+# exit immediately if not
+# shellcheck disable=SC2154
+if [[ "$interface" != "$WAN_INTERFACE_NAME" ]]; then
+	exit
+fi
+
+# Make sure the event calling this hook carries the environment variable
+# in question. The environment variable is not provided with every call
+# and we just want to exit if it is not provided
+# shellcheck disable=SC2154
+if [[ ! -v new_dhcp6_aftr_name ]]; then
+	# Variable is not set
+	exit
+fi
+# shellcheck disable=SC2154
+if [[ -z "${new_dhcp6_aftr_name}" ]]; then
+	# Variable is empty, can't do anything
+	exit
+fi
+
+# shellcheck disable=SC2154
+AFTR_NAME="$new_dhcp6_aftr_name"
+
+log_dhcp "Received new AFTR_NAME ${AFTR_NAME}"
+
+# Make sure we have a nameserver to resolve aftr name against
+# shellcheck disable=SC2154
+if [[ ! -v new_dhcp6_name_servers ]]; then
+	# Variable is not set
+	exit
+fi
+# shellcheck disable=SC2154
+if [[ -z "${new_dhcp6_name_servers}" ]]; then
+	# Variable is empty, can't do anything
+	exit
+fi
+
+# shellcheck disable=SC2154
+NAME_SERVERS="$new_dhcp6_name_servers"
+
+log_dhcp "Received new NAME_SERVERS ${NAME_SERVERS}"
+
+# Select first nameserver
+NAME_SERVER="$(echo "${NAME_SERVERS}" | awk '{print $1;}')"
+
+log_dhcp "Selected NAME_SERVER ${NAME_SERVER}"
+
+# Figure out a usable IPv6 address on the wan interface, to origin our DNS requests and tunnel
+WAN_INTERFACE_ADDRESS="$(ip --json address show "${WAN_INTERFACE_NAME}" | jq -r '.[0].addr_info[] | select(.family == "inet6" and .scope == "global" and .mngtmpaddr == true) | .local')"
+
+log_dhcp "Using WAN_INTERFACE_ADDRESS ${WAN_INTERFACE_ADDRESS}"
+
+AFTR_ADDRESS="$(dig "@${NAME_SERVER}" -b "${WAN_INTERFACE_ADDRESS}" AAAA "${AFTR_NAME}" +short | head -1)"
+
+log_dhcp "Resolved AFTR_NAME ${AFTR_NAME} to ${AFTR_ADDRESS}"
+
+# Check if there is already a tunnel interface
+if TUNNEL_INTERFACE_CONFIG="$(ip --json link show "${TUNNEL_INTERFACE_NAME}")"; then
+	TUNNEL_INTERFACE_OPERSTATE="$(echo "${TUNNEL_INTERFACE_CONFIG}" | jq -r '.[0].operstate')"
+	TUNNEL_INTERFACE_ORIGIN_ADDRESS="$(echo "${TUNNEL_INTERFACE_CONFIG}" | jq -r '.[0].address')"
+	TUNNEL_INTERFACE_REMOTE_ADDRESS="$(echo "${TUNNEL_INTERFACE_CONFIG}" | jq -r '.[0].broadcast')"
+
+	# Reconfigure tunnel interface, if not already in state we want
+	if [[ "${TUNNEL_INTERFACE_ORIGIN_ADDRESS}" != "${WAN_INTERFACE_ADDRESS}" || "${TUNNEL_INTERFACE_REMOTE_ADDRESS}" != "${AFTR_ADDRESS}" || "${TUNNEL_INTERFACE_OPERSTATE}" != "UNKNOWN" ]]; then
+		log_tunnel "Bad configuration, fixing tunnel parameter"
+
+		ip tunnel change "${TUNNEL_INTERFACE_NAME}" mode ipip6 local "${WAN_INTERFACE_ADDRESS}" remote "${AFTR_ADDRESS}"
+		ip link set "$TUNNEL_INTERFACE_NAME" up
+	else
+		log_tunnel "Tunnel already configured"
+	fi
+else
+	log_tunnel "Setting up DS-Lite tunnel"
+
+	ip tunnel add "${TUNNEL_INTERFACE_NAME}" mode ipip6 local "${WAN_INTERFACE_ADDRESS}" remote "${AFTR_ADDRESS}"
+	ip link set "$TUNNEL_INTERFACE_NAME" up
+fi
+
+log_tunnel "Setting default route"
+
+ip route replace default dev "${TUNNEL_INTERFACE_NAME}"
+
+log_tunnel "Tunnel setup finished"

pkgs/fem-ssh-known-hosts/default.nix

@@ -0,0 +1,6 @@
+{ runCommand, ... }:
+
+runCommand "fem-ssh-known-hosts" {} ''
+  mkdir -p $out
+  cp ${./fem-ssh-known-hosts} $out/known_hosts
+''

pkgs/fem-ssh-known-hosts/fem-ssh-known-hosts

@@ -0,0 +1,47 @@
+# FeM FeM SSH Known Hosts
+
+# Gitlab
+gitlab.fem-net.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIH7jb0VQpEJD+Xf9Odb0ROK9BWvm1bI0JW92zVOewnSO
+
+# Jumphost Mgmt-VLAN
+grumpy.fem.tu-ilmenau.de ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBCQ/8cqTuuAY2YaC0nLX9RexBeMbXEhvczpTSmzYqob3ke4NAUnVFRU/vnCQQDHG3sNtpEErKlE2/MyyGrqSssI=
+
+# Webhosting
+web-1.fem.tu-ilmenau.de ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBO1ErxOUxu501CDKZokoLzky4e0LGm+wsrOhWfG1iq1vRkHf+nANMzR0XwTdUOZBJ2NnU2ReorGVzdBzEP3YDOo=
+web-1.fem.tu-ilmenau.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICH2vZqsv/5w2PKFccBZUmkBQDHNJmkwGTu0kIC1t146
+
+# FeM Office
+officevm.fem.tu-ilmenau.de ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBBhquVgaKqQC3OaYW6kXpPOhkoLptTTeuWf5P43XaWszzCt6Wyu4gXcp/+6vLUE/QubiMoqBzBBsibsLjRQWxrk=
+
+# Xen Virt oberer Campus
+[chrom.net.fem.tu-ilmenau.de]:1022 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBMAM+QrJTssQZJ3hJUHtjxUd0jBRMyWzPr/dCJ/X9Nyx+xfklyIw301aDKnbdLp3kKDJB5/oj1Zc2f9HsP9yO1w=
+[chrom.net.fem.tu-ilmenau.de]:1022 ssh-rsa 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
+[chrom.net.fem.tu-ilmenau.de]:1022 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOePZRlNv7ZeOhX6kwNjT1dIm3n91Vn19pUtERupHPvQ
+[flavino.net.fem.tu-ilmenau.de]:1022 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAOhhOUnBBoozLULy/Q2VAoXD1/dlruEYFKlCJLPBZ87
+[flavino.net.fem.tu-ilmenau.de]:1022 ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDnhmna9iIWp74LfvkdesvaGidMC2Uadz0w3hYGdu88tpQrc7CE21Vp+/8koSSubE6nGYV5JuZAL5mHW8xjq87POSkX2El6V0AyCWOofarmIciWDdlxszMxmk/rJnW8s/noZpUQWP2s9AGy7NqCHnzcxrNLCeQkAMdJw5KwKJ6dPNc8H3/FwdYgYipOb/WOZQrTn3MZEA9h6vPm/MN+zfzl4hKBSzmt9qSL546PiREgVkk/cIrAq6xDilSGHjGT+EiIC8p+0QsiLdhvD4bnn4fHisVzypY9BXAeF9DE0RivUEkP9HwuH61dwQKT90UPiifg0LFSPegd+vM/WwuZghPz
+[flavino.net.fem.tu-ilmenau.de]:1022 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBJFZGrjTt9YiErgspJsEgA8uYse7OyD9EeTa8FvGNZJyALbQIVp5LW4XLsUmFcl3utx4wJD4VaCf62T9ocq1odY=
+[flavino.fem.tu-ilmenau.de]:1022 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAOhhOUnBBoozLULy/Q2VAoXD1/dlruEYFKlCJLPBZ87
+
+# pgsql-2 database cluster
+pgsql-2-node-1.net.fem.tu-ilmenau.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICd/uXtoDNL4YIh1hF8z95dJ9p9at6dilrSkuuiL8Mz+
+pgsql-2-node-1.net.fem.tu-ilmenau.de ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQCyYxSGd+/eO5gzQDvzJQzt66Lw12XuTrnZwQxfoK4ziiy20uVj+3Jv+6vX9HmqVpFPmdj0HZX9b8K6SzAF32e6AvZo8cShG9K1S8nefJHAeRXf7st/tGf5BUd5J2tfGOs7187dabofcsEGlqy7qxPQz/DXoR9jjZeiVfVhTXURWSEDOwkuS19yYkMd6HDng3ptk3eIM0XBZBXiMty+kt/elLf5tbLOgaEkP73qefHCGjE2qnErRg5yfYSKD+tjSZoVHM2wjpyy+jW1zvo0GGwhmA58GN5/J4EiHTEi7FIF/IwopjvCQ3YU6i/XqmgbYPLJRXDRLJNgfJITueTovHHHgwcm6Vg8bOnO0p/+syrZFw015CeucY0rhbjw0tmEMLgxgdLuztlWwop0RmwIjzbUs2w7Dg7T8J/bshOQgpzGHE6eLcp1ptu5lIz0xH0ltiiLCV5Lx1MKZakZKhLCvnHkfF9fMMH1F2U2NOnBej0RnappWmbYv2W4fY6EhK5cu1Wreh1XCrhbOXp9CVfcaqt238lTNx2qtJrL6X7dNLloIeEDQ/zzCI0bea8okelOO7R0/LBVnqGN5zUAdJL+5B0a25UZF+fudnwuqwwjA8TCqTFDvPTm4/jWrCMbpHaICT/+w/53rKn8UOHfSF2u+4HEPAbL5X0HC97d2SwLZs001w==
+pgsql-2-node-2.net.fem.tu-ilmenau.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPmr+R1DBuIDrV4WfUsBQJ7KmkLY5DLFJyDJjfWBU2Vx
+pgsql-2-node-2.net.fem.tu-ilmenau.de ssh-rsa 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
+pgsql-2-node-3.net.fem.tu-ilmenau.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICsJOfaJut0w+Aey4HSjlFDWRp5z2rBRYh0yhwZG8ORK
+pgsql-2-node-3.net.fem.tu-ilmenau.de ssh-rsa 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
+
+# Video Storage
+[video-storage.fem.tu-ilmenau.de]:1022 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJ6J6Mn14zjBoAJyiaLg+76x6eedM/NUrKcpMltP6DwY
+[video-storage.fem.tu-ilmenau.de]:1022 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBMvUAbPLQrDJYgL2wCvNrxdgZU65J0dU9vCwIwGYVXRvKv9S9RyDuDZvWLTZl26KIrVy94pnlySK0Zi2wJ6oOtg=
+
+# NixOS build server
+fuedra.fem.tu-ilmenau.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILvofCx3KMN+A0G58akpp1BMsmY6731YrYBWntEC9LQ1
+fuedra.fem.tu-ilmenau.de ssh-rsa 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
+
+# fem.social
+mastodon.fem.tu-ilmenau.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMzI1QoVPrwaJnbwA5PmmtGsiKBhV4ZO/q8Vb07r8I1w
+mastodon.fem.tu-ilmenau.de ssh-rsa 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
+
+# FeM XMPP
+xmpp-2.fem.tu-ilmenau.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPMfNNj/nEYDeF8I7ds/yyQ+fJ+2AGZkGFNh3y3ZUReW
+xmpp-2.fem-net.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPMfNNj/nEYDeF8I7ds/yyQ+fJ+2AGZkGFNh3y3ZUReW

pkgs/overlay.nix

@@ -14,8 +14,10 @@ final: prev: {
   chromium-incognito = final.callPackage ./chromium-incognito {};
   convert-flac-dir-to-mp3 = final.callPackage ./convert-flac-dir-to-mp3 {};
   curl-timings = final.callPackage ./curl-timings {};
+  ds-lite-dhcpcd-hook = final.callPackage ./ds-lite-dhcpcd-hook {};
   factorio-launcher = final.callPackage ./factorio-launcher {};
   feeds-dir = final.callPackage ./feeds-dir {};
+  fem-ssh-known-hosts = final.callPackage ./fem-ssh-known-hosts {};
   generate-blocked-prefixes = final.callPackage ./generate-blocked-prefixes {};
   git-checkout-github-pr = final.callPackage ./git-checkout-github-pr {};
   git-diff-word = final.callPackage ./git-diff-word {};
@@ -34,4 +36,5 @@ final: prev: {
   ssh-gpg = final.callPackage ./ssh-gpg {};
   update-from-hydra = final.callPackage ./update-from-hydra {};
   uptimestatus = final.python3.pkgs.callPackage ./uptimestatus {};
+  well-known-ssh-known-hosts = final.callPackage ./well-known-ssh-known-hosts {};
 }

pkgs/overrides/ds-lite-dhcpcd.nix

@@ -0,0 +1,20 @@
+final: prev:
+prev.dhcpcd.overrideAttrs (finalAttrs: prevAttrs: {
+
+  configureFlags = [
+    "--sysconfdir=/etc/ds-lite-dhcpcd"
+    "--localstatedir=/var"
+    "--disable-fork"
+    "--disable-privsep"
+    "--dbdir=/var/lib/ds-lite-dhcpcd"
+    "--rundir=/var/run/ds-lite-dhcpcd"
+    "--with-default-hostname=ds-lite"
+    "--disable-ipv4"
+    "--disable-arp"
+    "--disable-arpping"
+    "--disable-ipv4ll"
+    "--disable-ntp"
+  ];
+
+})
+

pkgs/overrides/overlay.nix

@@ -1,4 +1,5 @@
 final: prev: {
   dino = import ./dino.nix final prev;
+  ds-lite-dhcpcd = import ./ds-lite-dhcpcd.nix final prev;
   xmppc = import ./xmppc.nix final prev;
 }

pkgs/well-known-ssh-known-hosts/default.nix

@@ -0,0 +1,6 @@
+{ runCommand, ... }:
+
+runCommand "well-known-ssh-known-hosts" {} ''
+  mkdir -p $out
+  cp ${./well-known-ssh-known-hosts} $out/known_hosts
+''

pkgs/well-known-ssh-known-hosts/well-known-ssh-known-hosts

@@ -0,0 +1,30 @@
+# List of SSH Public Keys that should be pinned everywhere
+# Check fingerprints with:
+#   ssh-keygen -l -f ./well-known-ssh-known-hosts
+
+# Github
+# From: https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/githubs-ssh-key-fingerprints
+# SHA256:+DiY3wvvV6TuJJhbpZisF/zLDA0zPMSvHdkr4UvCOqU
+github.com ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOMqqnkVzrm0SdG6UOoqKLsabgH5C9okWi0dh2l9GKJl
+# SHA256:p2QAMXNIC1TJYWeIOttrVc98/R1BUFWu3/LiyKgUfQM
+github.com ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBEmKSENjQEezOmxkZMy7opKgwFB9nkt5YRrYMjNuG5N87uRgg6CLrbo5wAdT/y6v0mKV0U2w0WZ2YB/++Tpockg=
+# SHA256:uNiVztksCsDhcc0u9e8BujQXVUpKZIDTMczCvj3tD2s
+github.com ssh-rsa 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
+
+# GitLab.com
+# From: https://docs.gitlab.com/user/gitlab_com/#ssh-host-keys-fingerprints
+# SHA256:eUXGGm1YGsMAS7vkcx6JOJdOGHPem5gQp4taiCfCLB8
+gitlab.com ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAfuCHKVTjquxvt6CM6tdG4SLp1Btn/nOeHHE5UOzRdf
+# SHA256:ROQFvPThGrW4RuWLoL9tq9I9zJ42fK4XywyRtbOz/EQ
+gitlab.com ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCsj2bNKTBSpIYDEGk9KxsGh3mySTRgMtXL583qmBpzeQ+jqCMRgBqB98u3z++J1sKlXHWfM9dyhSevkMwSbhoR8XIq/U0tCNyokEi/ueaBMCvbcTHhO7FcwzY92WK4Yt0aGROY5qX2UKSeOvuP4D6TPqKF1onrSzH9bx9XUf2lEdWT/ia1NEKjunUqu1xOB/StKDHMoX4/OKyIzuS0q/T1zOATthvasJFoPrAjkohTyaDUz2LN5JoH839hViyEG82yB+MjcFV5MU3N1l1QL3cVUCh93xSaua1N85qivl+siMkPGbO5xR/En4iEY6K2XPASUEMaieWVNTRCtJ4S8H+9
+# SHA256:HbW3g8zUjNSksFbqTiUWPWg2Bq1x8xdGUrliXFzSnUw
+gitlab.com ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBFSMqzJeV9rUzU4kWitGjeR4PWSa29SPqJ1fVkhtj3Hw9xjLVXVYrU9QlYWrOLXBpQ6KWjbjTDTdDkoohFzgbEY=
+
+# Codeberg
+# From: https://docs.codeberg.org/security/ssh-fingerprint/
+# SHA256:T9FYDEHELhVkulEKKwge5aVhVTbqCW0MIRwAfpARs/E
+codeberg.org ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBL2pDxWr18SoiDJCGZ5LmxPygTlPu+cCKSkpqkvCyQzl5xmIMeKNdfdBpfbCGDPoZQghePzFZkKJNR/v9Win3Sc=
+# SHA256:6QQmYi4ppFS4/+zSZ5S4IU+4sa6rwvQ4PbhCtPEBekQ
+codeberg.org ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC8hZi7K1/2E2uBX8gwPRJAHvRAob+3Sn+y2hxiEhN0buv1igjYFTgFO2qQD8vLfU/HT/P/rqvEeTvaDfY1y/vcvQ8+YuUYyTwE2UaVU5aJv89y6PEZBYycaJCPdGIfZlLMmjilh/Sk8IWSEK6dQr+g686lu5cSWrFW60ixWpHpEVB26eRWin3lKYWSQGMwwKv4LwmW3ouqqs4Z4vsqRFqXJ/eCi3yhpT+nOjljXvZKiYTpYajqUC48IHAxTWugrKe1vXWOPxVXXMQEPsaIRc2hpK+v1LmfB7GnEGvF1UAKnEZbUuiD9PBEeD5a1MZQIzcoPWCrTxipEpuXQ5Tni4mN
+# SHA256:mIlxA9k46MmM6qdJOdMnAQpzGxF4WIVVL+fj+wZbw0g
+codeberg.org ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIVIC02vnjFyL+I4RHfvIGNtOgJMe769VTF1VR4EB3ZB

profiles/common-ssh/default.nix

@@ -0,0 +1,31 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+{
+
+  options.profiles.clerie.common-ssh = {
+    enable = mkEnableOption "Common ssh config";
+  };
+
+  config = mkIf config.profiles.clerie.common-ssh.enable {
+
+    services.openssh.enable = true;
+    services.openssh.settings = {
+      PasswordAuthentication = false;
+      KbdInteractiveAuthentication = false;
+      PermitRootLogin = lib.mkDefault "no";
+    };
+    services.openssh.hostKeys = lib.mkForce [
+      # Only create ed25519 host keys
+      { type = "ed25519"; path = "/etc/ssh/ssh_host_ed25519_key"; }
+    ];
+
+    programs.ssh.knownHostsFiles = [
+      (pkgs.clerie-ssh-known-hosts + "/known_hosts")
+      (pkgs.fem-ssh-known-hosts + "/known_hosts")
+      (pkgs.well-known-ssh-known-hosts + "/known_hosts")
+    ];
+
+  };
+}

profiles/common/default.nix

@@ -11,11 +11,11 @@ with lib;
   config = mkIf config.profiles.clerie.common.enable {
 
     profiles.clerie.common-dns.enable = mkDefault true;
-
     profiles.clerie.common-networking.enable = mkDefault true;
     profiles.clerie.common-nix.enable = mkDefault true;
-
+    profiles.clerie.common-ssh.enable = mkDefault true;
     profiles.clerie.common-webserver.enable = mkDefault true;
 
+    profiles.clerie.hetzner-storage-box-client.enable = mkDefault true;
   };
 }

profiles/default.nix

@@ -7,14 +7,17 @@
     ./common-dns
     ./common-networking
     ./common-nix
+    ./common-ssh
     ./common-webserver
     ./cybercluster-vm
     ./desktop
     ./dn42-router
+    ./ds-lite
     ./fem-net
     ./firefox
     ./gpg-ssh
     ./hetzner-cloud
+    ./hetzner-storage-box-client
     ./hydra-build-machine
     ./mercury-vm
     ./monitoring-server

profiles/ds-lite/default.nix

@@ -0,0 +1,150 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.profiles.clerie.ds-lite;
+
+
+  dsLiteDhcpcdConfig = ''
+    allowinterfaces ${cfg.wanInterfaceName} ${concatMapStringsSep " " (interface: interface.name) cfg.lanInterfaces}
+
+    option dhcp6_name_servers
+    option dhcp6_aftr_name
+
+    waitip 6
+
+    ipv6only
+    ipv6ra_noautoconf
+    noipv6rs
+
+    interface ${cfg.wanInterfaceName}
+      ipv6ra_autoconf
+      ipv6rs
+      ia_pd 1/::/48 ${concatMapStringsSep " " (interface: "${interface.name}/${toString interface.sla_id}/${toString interface.prefix_len}") cfg.lanInterfaces}
+
+    ${concatMapStrings (interface: ''
+    interface ${interface.name}
+      nolink
+    '') cfg.lanInterfaces}
+  '';
+
+  dsLiteDhcpcdConfigFile = pkgs.writeTextFile {
+    name = "dhcpcd.conf";
+    text = dsLiteDhcpcdConfig;
+  };
+
+  dsLiteDhcpcdHookWrapperFile = pkgs.writeShellScript "ds-lite-dhcpcd-hook-wrapper" ''
+    DS_LITE_WAN_INTERFACE_NAME=${lib.escapeShellArg cfg.wanInterfaceName};
+    export DS_LITE_WAN_INTERFACE_NAME
+    DS_LITE_TUNNEL_INTERFACE_NAME=${lib.escapeShellArg cfg.tunnelInterfaceName};
+    export DS_LITE_TUNNEL_INTERFACE_NAME
+
+    exec ${lib.getExe pkgs.ds-lite-dhcpcd-hook}
+  '';
+
+in {
+
+  options.profiles.clerie.ds-lite = {
+    enable = mkEnableOption "DS-Lite setup";
+    wanInterfaceName = mkOption {
+      type = types.str;
+      description = "Interface with IPv6 connectivity to provider";
+    };
+    tunnelInterfaceName = mkOption {
+      type = types.str;
+      description = "Interface with IPv4 connectivity to provider";
+    };
+    lanInterfaces = mkOption {
+      type = with types; listOf (submodule ({ ... }: {
+        options = {
+          name = mkOption {
+            type = types.str;
+          };
+          sla_id = mkOption {
+            type = types.ints.unsigned;
+          };
+          prefix_len = mkOption {
+            type = types.ints.between 48 128;
+          };
+        };
+      }));
+      default = [];
+      description = "Interfaces to provisn with an IPv6 prefix";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    systemd.services.ds-lite-dhcpcd = {
+      description = "DS-Lite dhcpcd";
+
+      wantedBy = [ "multi-user.target" ];
+
+      environment = {
+      };
+
+      serviceConfig = {
+        Type = "simple";
+        User = "ds-lite";
+        Group = "ds-lite";
+        StateDirectory = "ds-lite-dhcpcd";
+        RuntimeDirectory = "ds-lite-dhcpcd";
+
+        ExecStart = "${pkgs.ds-lite-dhcpcd}/bin/dhcpcd --ipv6only --nobackground --config ${dsLiteDhcpcdConfigFile} --script ${dsLiteDhcpcdHookWrapperFile}";
+
+        Restart = "always";
+        AmbientCapabilities = [
+          "CAP_NET_ADMIN"
+          "CAP_NET_RAW"
+          "CAP_NET_BIND_SERVICE"
+        ];
+        ReadWritePaths = [
+          "/proc/sys/net/ipv6"
+        ];
+        DeviceAllow = "";
+        LockPersonality = true;
+        MemoryDenyWriteExecute = true;
+        PrivateDevices = true;
+        PrivateMounts = true;
+        PrivateTmp = true;
+        PrivateUsers = false;
+        ProtectClock = true;
+        ProtectControlGroups = true;
+        ProtectHome = "tmpfs"; # allow exceptions to be added to ReadOnlyPaths, etc.
+        ProtectHostname = true;
+        ProtectKernelLogs = true;
+        ProtectKernelModules = true;
+        ProtectKernelTunables = true;
+        ProtectProc = "invisible";
+        ProtectSystem = "strict";
+        RemoveIPC = true;
+        RestrictAddressFamilies = [
+          "AF_UNIX"
+          "AF_INET"
+          "AF_INET6"
+          "AF_NETLINK"
+          "AF_PACKET"
+        ];
+        RestrictNamespaces = true;
+        RestrictRealtime = true;
+        RestrictSUIDSGID = true;
+        SystemCallFilter = [
+          "@system-service"
+          "~@keyring"
+          "~@memlock"
+          "~@mount"
+        ];
+        SystemCallArchitectures = "native";
+        UMask = "0027";
+      };
+    };
+
+    users.users.ds-lite = {
+      isSystemUser = true;
+      group = "ds-lite";
+    };
+    users.groups.ds-lite = { };
+  };
+
+}

profiles/hetzner-storage-box-client/default.nix

@@ -0,0 +1,19 @@
+{ config, lib, ... }:
+
+with lib;
+
+{
+
+  options.profiles.clerie.hetzner-storage-box-client = {
+    enable = mkEnableOption "Profile for Hetzner Storage Box Clients";
+  };
+
+  config = mkIf config.profiles.clerie.hetzner-storage-box-client.enable {
+
+   programs.ssh.knownHostsFiles = [
+     ./hetzner-storage-box-ssh_known_hosts
+   ];
+
+ };
+
+}

profiles/hetzner-storage-box-client/hetzner-storage-box-ssh_known_hosts

@@ -0,0 +1,7 @@
+# SSH public keys of Hetzner Storage Box servers
+# Fingerprints from: https://docs.hetzner.com/de/storage/storage-box/general#ssh-host-keys
+# Verify with: ssh-keygen -l -f hetzner-storage-box-ssh_known_hosts
+# SHA256:XqONwb1S0zuj5A1CDxpOSuD2hnAArV1A3wKY7Z3sdgM MD5:12:cd:bd:c7:de:76:91:34:1c:24:31:24:55:40:ab:87
+*.your-storagebox.de,[*.your-storagebox.de]:23 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIICf9svRenC/PLKIL9nk6K/pxQgoiFC41wTNvoIncOxs
+# SHA256:EMlfI8GsRIfpVkoW1H2u0zYVpFGKkIMKHFZIRkf2ioI MD5:3d:7b:6f:99:5f:68:53:21:73:15:f9:2e:6b:3a:9f:e3
+*.your-storagebox.de,[*.your-storagebox.de]:23 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA5EB5p/5Hp3hGW1oHok+PIOH9Pbn7cnUiGmUEBrCVjnAw+HrKyN8bYVV0dIGllswYXwkG/+bgiBlE6IVIBAq+JwVWu1Sss3KarHY3OvFJUXZoZyRRg/Gc/+LRCE7lyKpwWQ70dbelGRyyJFH36eNv6ySXoUYtGkwlU5IVaHPApOxe4LHPZa/qhSRbPo2hwoh0orCtgejRebNtW5nlx00DNFgsvn8Svz2cIYLxsPVzKgUxs8Zxsxgn+Q/UvR7uq4AbAhyBMLxv7DjJ1pc7PJocuTno2Rw9uMZi1gkjbnmiOh6TTXIEWbnroyIhwc8555uto9melEUmWNQ+C+PwAK+MPw==