zustand

auth/cretePassword.js

@@ -5,3 +5,9 @@ const password = process.argv[2];
 bcrypt.hash(password, 12).then(hash=>{
     console.log(hash);
 });
+
+// node createPassword.js "geheim"
+//docker exec AppServerAuth node -e "import bcrypt from 'bcrypt'; bcrypt.hash('abc', 12).then(h => console.log(h));"
+
+// node cretePassword.js "geheim"
+// $2b$12$Ld/e3h0ogkc1ELnAse9.dueckrJkUQXrvjy1mKKwCV5I61aS8Ge4G

dokumentation/2026_03_21___q2_WS.txt

@@ -0,0 +1,414 @@
+Ich habe einen weitergeleitete Applikation, bei dem der WSS momentan nicht durch kmmt.
+
+
+https://tccontrol.server.schooltech.ch/
+
+WebService.js:124 WebSocket connection to 'wss://tccontrol.server.schooltech.ch/echo' failed: 
+_connect @ WebService.js:124
+(anonymous) @ WebService.js:179Understand this error
+WebService.js:184 WebSocket error: Event {isTrusted: true, type: 'error', target: WebSocket, currentTarget: WebSocket, eventPhase: 2, …}
+
+
+Aufbau des Systems: NGinx in docker container soll auf Tunnel weiter leiten. Service der erreicht werden soll, ist unter "https://thinkcentre.local:10010/" wunderbar erreichbar. 
+Von dort soll es über einen Tunnel gehen:
+
+
+  appRobot_Tunnel:
+    image: alpine:latest
+    container_name: appRobot_Tunnel
+    restart: unless-stopped
+    environment:
+      - TZ=Europe/Zurich
+    volumes:
+      - /home/chk/Documents/AppServerPortalUI/.ssh:/root/.ssh:ro
+    command: >
+      /bin/sh -c "
+      apk add --no-cache openssh-client autossh &&
+      autossh -M 0 -N -o StrictHostKeyChecking=no \
+      -i /root/.ssh/id_ed25519 \
+      -o StrictHostKeyChecking=no \
+      -o ServerAliveInterval=60 \
+      -o ServerAliveCountMax=10 \
+      -o ExitOnForwardFailure=yes \
+      -N \
+      -R 0.0.0.0:9780:appRobot_guacamole:8080 \
+      -R 0.0.0.0:9710:appRobot_Control:10010 \
+      -R 0.0.0.0:9703:portainer:9000 \
+      -R 0.0.0.0:9712:appRobot_Simulation:1003\
+      -R 0.0.0.0:9793:appRobot_Homing:2093 \
+      tunnel@server.schooltech.ch -p 2255
+      "
+
+
+und dann vom nginx verarbeitet werden, denn der nginx ist von aussen per server.schooltech.ch erreichbar. 
+Dazu:
+
+== nginx.conf ==
+# /etc/nginx/conf.d/default.conf
+server {
+    listen 80 default_server;
+    listen [::]:80 default_server;
+
+    # ACME HTTP-01 Challenge (Certbot)
+    location ^~ /.well-known/acme-challenge/ {
+        root /var/www/certbot;
+        default_type "text/plain; charset=utf-8";
+    }
+
+    # PortalUI root
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # === API forwarding for Auth-Service ===
+    location /api/ {
+        proxy_pass http://appserverauth:3000/api/;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # === SPA routing (Portal UI) ===
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}
+
+sowie die verschiedenen subdomains, im 50-subdomains-userA.conf, die erzeugt werden über
+== connect-proxies.sh==
+#!/bin/sh
+# /docker-entrypoint.d/40-connect-proxies.sh
+# Generiert pro Zeile in /etc/nginx/forwarding.conf:
+#  - HTTPS vHost (Proxy oder local static) NUR wenn Zertifikate existieren
+#  - optional 80->443 Redirect-Server (mit ACME-Ausnahme) bei http_behavior=redirect
+# Läuft automatisch beim Containerstart (nginx:alpine EntryPoint).
+
+set -eu
+
+CONF_DIR="/etc/nginx/conf.d"
+LIVE_DIR="/etc/letsencrypt/live"
+FWD_FILE="/etc/nginx/forwarding.conf"
+
+HTTPS_SUFFIX="-https.generated.conf"
+HTTP_REDIRECT_SUFFIX="-http-redirect.generated.conf"
+GLOBALS_FILE="$CONF_DIR/_globals.generated.conf"
+
+echo "[connect-proxies] start …"
+
+# 0) Forwarding-Datei vorhanden?
+if [ ! -f "$FWD_FILE" ]; then
+  echo "[connect-proxies] WARN: $FWD_FILE fehlt – keine Proxies zu generieren."
+  exit 0
+fi
+
+# 1) Globale HTTP-Kontext-Map + Resolver (idempotent)
+# >>> CHANGE: Resolver NICHT hardcoden. Dynamisch aus /etc/resolv.conf ableiten, Fallback 127.0.0.11
+RESOLVERS="$(awk '/^nameserver/{print $2}' /etc/resolv.conf | xargs || true)"
+if [ -n "${RESOLVERS:-}" ]; then
+  RESOLVER_LINE="resolver $RESOLVERS ipv6=off valid=30s;"
+else
+  RESOLVER_LINE="resolver 127.0.0.11 ipv6=off valid=30s;"
+fi
+
+cat > "$GLOBALS_FILE" <<NGINX
+# Automatisch generiert – nicht editieren
+map \$http_upgrade \$connection_upgrade {
+    default upgrade;
+    ''      close;
+}
+$RESOLVER_LINE
+NGINX
+# <<< END CHANGE
+
+# 2) Alte generierte Confs entfernen
+rm -f "$CONF_DIR/"*"$HTTPS_SUFFIX" 2>/dev/null || true
+rm -f "$CONF_DIR/"*"$HTTP_REDIRECT_SUFFIX" 2>/dev/null || true
+
+# 3) Zeilen verarbeiten
+LINE_NO=0
+while IFS= read -r RAW || [ -n "$RAW" ]; do
+  LINE_NO=$((LINE_NO+1))
+  # trim + CR entfernen
+  LINE="$(printf '%s' "$RAW" | tr -d '\r' | sed 's/^[[:space:]]*//; s/[[:space:]]*$//')"
+  [ -z "$LINE" ] && continue
+  case "$LINE" in \#*) continue;; esac
+
+  # Spalten splitten (mindestens 2 erforderlich)
+  set -- $LINE
+  SERVER_NAME="${1:-}"
+  UPSTREAM_URL="${2:-}"
+  HTTP_BEHAVIOR="${3:-redirect}"
+  WEBSOCKETS="${4:-false}"
+  VERIFY_TLS="${5:-false}"
+  CERT_DOMAIN="${6:-$SERVER_NAME}"
+  LISTEN_PORT="${7:-443}"
+
+  if [ -z "$SERVER_NAME" ] || [ -z "$UPSTREAM_URL" ]; then
+    echo "[connect-proxies] WARN(Line $LINE_NO): unvollständig -> $LINE"
+    continue
+  fi
+
+  FULLCHAIN="$LIVE_DIR/$CERT_DOMAIN/fullchain.pem"
+  PRIVKEY="$LIVE_DIR/$CERT_DOMAIN/privkey.pem"
+
+  HTTPS_OUT="$CONF_DIR/${SERVER_NAME}-p${LISTEN_PORT}${HTTPS_SUFFIX}"
+  HTTP_REDIRECT_OUT="$CONF_DIR/${SERVER_NAME}${HTTP_REDIRECT_SUFFIX}"
+
+  # >>> NEW: Upstream normalisieren (Trailing Slash entfernen) + DNS-Check vorbereiten
+  SANITIZED_UPSTREAM="${UPSTREAM_URL%/}"
+  DNS_OK="true"
+  SCHEME=""; HOST=""; PORT=""
+
+  if [ "$SANITIZED_UPSTREAM" != "local" ]; then
+    case "$SANITIZED_UPSTREAM" in
+      http://*)
+        URI="${SANITIZED_UPSTREAM#http://}"; SCHEME="http";  DEFAULT_PORT="80"
+        ;;
+      https://*)
+        URI="${SANITIZED_UPSTREAM#https://}"; SCHEME="https"; DEFAULT_PORT="443"
+        ;;
+      *)
+        echo "[connect-proxies] WARN(Line $LINE_NO): $SERVER_NAME upstream_url ungültig: '$UPSTREAM_URL' – überspringe."
+        continue
+        ;;
+    esac
+    HOSTPORT="${URI%%/*}"
+    HOST="${HOSTPORT%%:*}"
+    PORT="${HOSTPORT#*:}"; [ "$PORT" = "$HOSTPORT" ] && PORT="$DEFAULT_PORT"
+
+    if command -v getent >/dev/null 2>&1; then
+      if ! getent hosts "$HOST" >/dev/null 2>&1; then
+        DNS_OK="false"
+        echo "[connect-proxies] [-] $SERVER_NAME: DNS nicht auflösbar ($HOST) – erzeuge 503-Placeholder statt Proxy."
+      fi
+    else
+      DNS_OK="unknown"
+    fi
+  fi
+  # <<< END NEW
+
+  if [ -f "$FULLCHAIN" ] && [ -f "$PRIVKEY" ]; then
+    echo "[connect-proxies] [+] $SERVER_NAME: Zertifikat OK (cert_domain=$CERT_DOMAIN). Erzeuge 443 …"
+
+    # Fall A: local (statisch, kein proxy_pass)
+    if [ "$SANITIZED_UPSTREAM" = "local" ]; then
+      cat > "$HTTPS_OUT" <<NGINX
+# Auto-generated - 443 static site
+server {
+    listen ${LISTEN_PORT} ssl http2;
+    listen [::]:${LISTEN_PORT} ssl http2;
+    server_name $SERVER_NAME;
+
+    ssl_certificate     $FULLCHAIN;
+    ssl_certificate_key $PRIVKEY;
+
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_ciphers HIGH:!aNULL:!MD5;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location /api/ {
+        proxy_pass http://appserverauth:3000/api/;
+
+        proxy_set_header Host \$host;
+        proxy_set_header X-Real-IP \$remote_addr;
+        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto \$scheme;
+    }
+
+    location / {
+        try_files \$uri \$uri/ /index.html;
+    }
+}
+NGINX
+
+    else
+      # >>> NEW: Zwei Pfade – DNS_OK=false => Placeholder; sonst Proxy mit Laufzeit-Resolver
+      if [ "$DNS_OK" = "false" ]; then
+        # 443 Placeholder – keine Proxy-Verbindung, saubere 503
+        cat > "$HTTPS_OUT" <<NGINX
+# Auto-generated - 443 placeholder (DNS failed)
+server {
+    listen ${LISTEN_PORT} ssl http2;
+    listen [::]:${LISTEN_PORT} ssl http2;
+    server_name $SERVER_NAME;
+
+    ssl_certificate     $FULLCHAIN;
+    ssl_certificate_key $PRIVKEY;
+
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_ciphers HIGH:!aNULL:!MD5;
+
+    location / {
+        default_type text/html;
+        return 503 "<!doctype html><html><head><meta charset='utf-8'><title>Service temporarily unavailable</title></head><body style='font-family:sans-serif;margin:3rem'><h1>\$server_name nicht erreichbar</h1><p>DNS-Auflösung fehlgeschlagen. Bitte später erneut versuchen.</p></body></html>";
+    }
+}
+NGINX
+      else
+        # 443 Proxy – DNS ok/unknown: Laufzeit-Auflösung + freundlicher 503 bei Downstreams
+        cat > "$HTTPS_OUT" <<NGINX
+# Auto-generated - 443 reverse proxy
+server {
+    listen ${LISTEN_PORT} ssl http2;
+    listen [::]:${LISTEN_PORT} ssl http2;
+    server_name $SERVER_NAME;
+
+    ssl_certificate     $FULLCHAIN;
+    ssl_certificate_key $PRIVKEY;
+
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_ciphers HIGH:!aNULL:!MD5;
+
+    # Fehler sauber abfangen und 503 liefern (statt rohe 502/504)
+    proxy_intercept_errors on;
+    error_page 502 503 504 = @service_down;
+
+    location / {
+        # >>> CHANGE: variable proxy_pass -> DNS zur Laufzeit (verhindert nginx -t Crash)
+        set \$target $SANITIZED_UPSTREAM;
+        proxy_pass \$target;
+
+        proxy_set_header Host \$host;
+        proxy_set_header X-Real-IP \$remote_addr;
+        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto \$scheme;
+
+        proxy_http_version 1.1;
+NGINX
+
+        if [ "$WEBSOCKETS" = "true" ]; then
+          cat >> "$HTTPS_OUT" <<'NGINX'
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $connection_upgrade;
+NGINX
+        else
+          cat >> "$HTTPS_OUT" <<'NGINX'
+        proxy_set_header Upgrade "";
+        proxy_set_header Connection close;
+NGINX
+        fi
+
+        case "$SANITIZED_UPSTREAM" in
+          https://*)
+            if [ "$VERIFY_TLS" = "true" ]; then
+              cat >> "$HTTPS_OUT" <<'NGINX'
+        proxy_ssl_verify on;
+        proxy_ssl_server_name on;
+NGINX
+            else
+              cat >> "$HTTPS_OUT" <<'NGINX'
+        proxy_ssl_verify off;
+        proxy_ssl_server_name on;
+NGINX
+            fi
+          ;;
+        esac
+
+        cat >> "$HTTPS_OUT" <<'NGINX'
+        client_max_body_size 50m;
+        proxy_connect_timeout 60s;
+        proxy_send_timeout 60s;
+        proxy_read_timeout 60s;
+    }
+
+    location @service_down {
+        default_type text/html;
+        return 503 "<!doctype html><html><head><meta charset='utf-8'><title>Service temporarily unavailable</title></head><body style='font-family:sans-serif;margin:3rem'><h1>$server_name nicht erreichbar</h1><p>Der Dienst ist momentan nicht verfügbar. Bitte später erneut versuchen.</p></body></html>";
+    }
+
+}
+NGINX
+      fi
+      # <<< END NEW
+    fi
+
+    # 80->443 Redirect-Server nur, wenn gewünscht
+    if [ "$HTTP_BEHAVIOR" = "redirect" ]; then
+      cat > "$HTTP_REDIRECT_OUT" <<NGINX
+# Auto-generated – 80->443 redirect for $SERVER_NAME
+server {
+    listen 80;
+    listen [::]:80;
+    server_name $SERVER_NAME;
+
+    # ACME-Ausnahme
+    location ^~ /.well-known/acme-challenge/ {
+        root /var/www/certbot;
+        default_type "text/plain; charset=utf-8";
+    }
+
+    location / {
+        return 301 https://\$host\$request_uri;
+    }
+}
+NGINX
+    else
+      # Sicherstellen, dass kein alter Redirect liegen bleibt
+      rm -f "$HTTP_REDIRECT_OUT" 2>/dev/null || true
+    fi
+
+  else
+    echo "[connect-proxies] [-] $SERVER_NAME: keine Zertifikate (cert_domain=$CERT_DOMAIN). Entferne evtl. alte Confs."
+    rm -f "$HTTPS_OUT" "$HTTP_REDIRECT_OUT" 2>/dev/null || true
+  fi
+
+done < "$FWD_FILE"
+
+echo "[connect-proxies] nginx -t …"
+nginx -t
+echo "[connect-proxies] done."
+
+
+das connect proxies verwendet:
+=== forwaring.conf ===
+# server_name                            upstream_url                  http_behavior  websockets  verify_upstream_tls  [cert_domain]
+
+#fluidncRed.server.schooltech.ch http://appServer_TunnelHead:8120 redirect true false
+
+# 444 → 8121 (WS/WSS)
+# fluidncRedWs.server.schooltech.ch http://appServer_TunnelHead:8121 redirect true false fluidncRedWs.server.schooltech.ch 444
+#server.schooltech.ch                     local            static       false       false
+server.schooltech.ch local redirect false false server.schooltech.ch 443
+tcPortainer.server.schooltech.ch  http://thinkcentre.local:9000  redirect  true  false
+tcGuac.server.schooltech.ch  http://thinkcentre.local:9000  redirect  true  false
+ 
+#inf InformatiWeb  ist per Tunnel angeschlossen. Soll auf 97xx Ports gehen
+infPortainer.server.schooltech.ch  http://appServer_TunnelHead:9903  redirect  true  false
+infGuac.server.schooltech.ch  http://appServer_TunnelHead:9980  redirect  true  false
+ 
+#RP5 ist "Lokal" der Server
+rp5Guac.server.schooltech.ch  http://appServer_guacamole:8080  redirect  true  false
+rp5Portainer.server.schooltech.ch  http://portainer:9000  redirect  true  false
+ 
+ 
+#RP3 ist  Raspi für die Scara-Robots, per Tunnel angeschlossen. Er hat 81xx Ports am TunnelHead
+rp3Portainer.server.schooltech.ch  http://appServer_TunnelHead:8100  redirect  true  false
+rp3Guac.server.schooltech.ch  http://appServer_TunnelHead:8180  redirect  true  false
+fluidncRed.server.schooltech.ch http://appServer_TunnelHead:8120 redirect true false 
+fluidncWhite.server.schooltech.ch https://appServer_TunnelHead:8104 redirect true false 
+
+# ThinkCentre ist ein MiniPC der neben dem einen Roboter steht. Hier sind die 97xx Ports zugewiesen
+tcGuac.server.schooltech.ch 		  http://appServer_TunnelHead:9780       redirect       false       false
+tcPortainer.server.schooltech.ch 	  http://appServer_TunnelHead:9703       redirect       false       false
+tcSimulation.server.schooltech.ch        https://appServer_TunnelHead:9712            redirect       false       false
+#tcVideocontroller.server.schooltech.ch   https://tcvideo:9443         redirect       true        false
+robotHoming.server.schooltech.ch	     https://appServer_TunnelHead:9793	 redirect	false	    false
+tcControl.server.schooltech.ch           https://appServer_TunnelHead:9710    redirect       false       false
+
+
+# Beispiel mit abweichendem Zertifikats-Ordner (Lineage-Suffix)
+# tcGuac.server.schooltech.ch            https://guac:8443            redirect       true        false               server.schooltech.ch-0002
+
+# Beispiel für WS auf port+1 (zwei Einträge, einer nur für WS-Endpunkt)
+# wsApp.server.schooltech.ch             https://wsapp:443            redirect       true        false
+
+
+===============
+
+Jetzt die Frage: 
+
+1) Siehst du, wie es aufgebaut ist? Siehst du, wie die adresse vom nginx weiter geleitet wird? Hast du fragen dazu?
+Die weiterleitung läuft. ich sehe die WebPage. Nur der WSS kommt nicht durch
+2)  siehst du, woran das liegt, dass der WSS nicht durch kommt?

dokumentation/2026_03_21___q3_Auth.txt

@@ -0,0 +1,358 @@
+die Authentifizierung von server.schooltech.ch funktioniert. Ich komme wie gewünscht nur mit aktivem 
+cookie rein. 
+
+# /etc/nginx/conf.d/default.conf
+server {
+    listen 80 default_server;
+    listen [::]:80 default_server;
+
+    # ACME HTTP-01 Challenge (Certbot)
+    location ^~ /.well-known/acme-challenge/ {
+        root /var/www/certbot;
+        default_type "text/plain; charset=utf-8";
+    }
+
+    # PortalUI root
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # === API forwarding for Auth-Service ===
+    location /api/ {
+        proxy_pass http://appserverauth:3000/api/;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # === SPA routing (Portal UI) ===
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}
+
+
+
+Die SubDomains werden in 50-subdomains-userA.conf verwaltet. Und bei diesen Subdomains sollen einige auch nur mit aktivem cookie erreichbar sein.
+Aber nicht alle. Deshalb: Eine weitere spalte in der forwarding.conf datei.
+
+#!/bin/sh
+# /docker-entrypoint.d/40-connect-proxies.sh
+# Generiert pro Zeile in /etc/nginx/forwarding.conf:
+#  - HTTPS vHost (Proxy oder local static) NUR wenn Zertifikate existieren
+#  - optional 80->443 Redirect-Server (mit ACME-Ausnahme) bei http_behavior=redirect
+# Läuft automatisch beim Containerstart (nginx:alpine EntryPoint).
+#
+#
+#  Die Datei: connect-proxies.sh läuft, wenn nginx docker container startet
+
+set -eu
+
+CONF_DIR="/etc/nginx/conf.d"
+LIVE_DIR="/etc/letsencrypt/live"
+FWD_FILE="/etc/nginx/forwarding.conf"
+
+HTTPS_SUFFIX="-https.generated.conf"
+HTTP_REDIRECT_SUFFIX="-http-redirect.generated.conf"
+GLOBALS_FILE="$CONF_DIR/_globals.generated.conf"
+
+echo "[connect-proxies] start …"
+
+# 0) Forwarding-Datei vorhanden?
+if [ ! -f "$FWD_FILE" ]; then
+  echo "[connect-proxies] WARN: $FWD_FILE fehlt – keine Proxies zu generieren."
+  exit 0
+fi
+
+# 1) Globale HTTP-Kontext-Map + Resolver (idempotent)
+# >>> CHANGE: Resolver NICHT hardcoden. Dynamisch aus /etc/resolv.conf ableiten, Fallback 127.0.0.11
+RESOLVERS="$(awk '/^nameserver/{print $2}' /etc/resolv.conf | xargs || true)"
+if [ -n "${RESOLVERS:-}" ]; then
+  RESOLVER_LINE="resolver $RESOLVERS ipv6=off valid=30s;"
+else
+  RESOLVER_LINE="resolver 127.0.0.11 ipv6=off valid=30s;"
+fi
+
+cat > "$GLOBALS_FILE" <<NGINX
+# Automatisch generiert – nicht editieren
+map \$http_upgrade \$connection_upgrade {
+    default upgrade;
+    ''      close;
+}
+$RESOLVER_LINE
+NGINX
+# <<< END CHANGE
+
+# 2) Alte generierte Confs entfernen
+rm -f "$CONF_DIR/"*"$HTTPS_SUFFIX" 2>/dev/null || true
+rm -f "$CONF_DIR/"*"$HTTP_REDIRECT_SUFFIX" 2>/dev/null || true
+
+# 3) Zeilen verarbeiten
+LINE_NO=0
+while IFS= read -r RAW || [ -n "$RAW" ]; do
+  LINE_NO=$((LINE_NO+1))
+  # trim + CR entfernen
+  LINE="$(printf '%s' "$RAW" | tr -d '\r' | sed 's/^[[:space:]]*//; s/[[:space:]]*$//')"
+  [ -z "$LINE" ] && continue
+  case "$LINE" in \#*) continue;; esac
+
+  # Spalten splitten (mindestens 2 erforderlich)
+  set -- $LINE
+  SERVER_NAME="${1:-}"
+  UPSTREAM_URL="${2:-}"
+  HTTP_BEHAVIOR="${3:-redirect}"
+  WEBSOCKETS="${4:-false}"
+  VERIFY_TLS="${5:-false}"
+  CERT_DOMAIN="${6:-$SERVER_NAME}"
+  LISTEN_PORT="${7:-443}"
+
+  if [ -z "$SERVER_NAME" ] || [ -z "$UPSTREAM_URL" ]; then
+    echo "[connect-proxies] WARN(Line $LINE_NO): unvollständig -> $LINE"
+    continue
+  fi
+
+  FULLCHAIN="$LIVE_DIR/$CERT_DOMAIN/fullchain.pem"
+  PRIVKEY="$LIVE_DIR/$CERT_DOMAIN/privkey.pem"
+
+  HTTPS_OUT="$CONF_DIR/${SERVER_NAME}-p${LISTEN_PORT}${HTTPS_SUFFIX}"
+  HTTP_REDIRECT_OUT="$CONF_DIR/${SERVER_NAME}${HTTP_REDIRECT_SUFFIX}"
+
+  # >>> NEW: Upstream normalisieren (Trailing Slash entfernen) + DNS-Check vorbereiten
+  SANITIZED_UPSTREAM="${UPSTREAM_URL%/}"
+  DNS_OK="true"
+  SCHEME=""; HOST=""; PORT=""
+
+  if [ "$SANITIZED_UPSTREAM" != "local" ]; then
+    case "$SANITIZED_UPSTREAM" in
+      http://*)
+        URI="${SANITIZED_UPSTREAM#http://}"; SCHEME="http";  DEFAULT_PORT="80"
+        ;;
+      https://*)
+        URI="${SANITIZED_UPSTREAM#https://}"; SCHEME="https"; DEFAULT_PORT="443"
+        ;;
+      *)
+        echo "[connect-proxies] WARN(Line $LINE_NO): $SERVER_NAME upstream_url ungültig: '$UPSTREAM_URL' – überspringe."
+        continue
+        ;;
+    esac
+    HOSTPORT="${URI%%/*}"
+    HOST="${HOSTPORT%%:*}"
+    PORT="${HOSTPORT#*:}"; [ "$PORT" = "$HOSTPORT" ] && PORT="$DEFAULT_PORT"
+
+    if command -v getent >/dev/null 2>&1; then
+      if ! getent hosts "$HOST" >/dev/null 2>&1; then
+        DNS_OK="false"
+        echo "[connect-proxies] [-] $SERVER_NAME: DNS nicht auflösbar ($HOST) – erzeuge 503-Placeholder statt Proxy."
+      fi
+    else
+      DNS_OK="unknown"
+    fi
+  fi
+  # <<< END NEW
+
+  if [ -f "$FULLCHAIN" ] && [ -f "$PRIVKEY" ]; then
+    echo "[connect-proxies] [+] $SERVER_NAME: Zertifikat OK (cert_domain=$CERT_DOMAIN). Erzeuge 443 …"
+
+    # Fall A: local (statisch, kein proxy_pass)
+    if [ "$SANITIZED_UPSTREAM" = "local" ]; then
+      cat > "$HTTPS_OUT" <<NGINX
+# Auto-generated - 443 static site
+server {
+    listen ${LISTEN_PORT} ssl http2;
+    listen [::]:${LISTEN_PORT} ssl http2;
+    server_name $SERVER_NAME;
+
+    ssl_certificate     $FULLCHAIN;
+    ssl_certificate_key $PRIVKEY;
+
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_ciphers HIGH:!aNULL:!MD5;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location /api/ {
+        proxy_pass http://appserverauth:3000/api/;
+
+        proxy_set_header Host \$host;
+        proxy_set_header X-Real-IP \$remote_addr;
+        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto \$scheme;
+    }
+
+    location / {
+        try_files \$uri \$uri/ /index.html;
+    }
+}
+NGINX
+
+    else
+      # >>> NEW: Zwei Pfade – DNS_OK=false => Placeholder; sonst Proxy mit Laufzeit-Resolver
+      if [ "$DNS_OK" = "false" ]; then
+        # 443 Placeholder – keine Proxy-Verbindung, saubere 503
+        cat > "$HTTPS_OUT" <<NGINX
+# Auto-generated - 443 placeholder (DNS failed)
+server {
+    listen ${LISTEN_PORT} ssl http2;
+    listen [::]:${LISTEN_PORT} ssl http2;
+    server_name $SERVER_NAME;
+
+    ssl_certificate     $FULLCHAIN;
+    ssl_certificate_key $PRIVKEY;
+
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_ciphers HIGH:!aNULL:!MD5;
+
+    location / {
+        default_type text/html;
+        return 503 "<!doctype html><html><head><meta charset='utf-8'><title>Service temporarily unavailable</title></head><body style='font-family:sans-serif;margin:3rem'><h1>\$server_name nicht erreichbar</h1><p>DNS-Auflösung fehlgeschlagen. Bitte später erneut versuchen.</p></body></html>";
+    }
+}
+NGINX
+      else
+        # 443 Proxy – DNS ok/unknown: Laufzeit-Auflösung + freundlicher 503 bei Downstreams
+        cat > "$HTTPS_OUT" <<NGINX
+# Auto-generated - 443 reverse proxy
+server {
+    listen ${LISTEN_PORT} ssl http2;
+    listen [::]:${LISTEN_PORT} ssl http2;
+    server_name $SERVER_NAME;
+
+    ssl_certificate     $FULLCHAIN;
+    ssl_certificate_key $PRIVKEY;
+
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_ciphers HIGH:!aNULL:!MD5;
+
+    # Fehler sauber abfangen und 503 liefern (statt rohe 502/504)
+    proxy_intercept_errors on;
+    error_page 502 503 504 = @service_down;
+
+    location / {
+        # >>> CHANGE: variable proxy_pass -> DNS zur Laufzeit (verhindert nginx -t Crash)
+        set \$target $SANITIZED_UPSTREAM;
+        proxy_pass \$target;
+
+        proxy_set_header Host \$host;
+        proxy_set_header X-Real-IP \$remote_addr;
+        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto \$scheme;
+
+        proxy_http_version 1.1;
+NGINX
+
+        if [ "$WEBSOCKETS" = "true" ]; then
+          cat >> "$HTTPS_OUT" <<'NGINX'
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $connection_upgrade;
+NGINX
+        else
+          cat >> "$HTTPS_OUT" <<'NGINX'
+        proxy_set_header Upgrade "";
+        proxy_set_header Connection close;
+NGINX
+        fi
+
+        case "$SANITIZED_UPSTREAM" in
+          https://*)
+            if [ "$VERIFY_TLS" = "true" ]; then
+              cat >> "$HTTPS_OUT" <<'NGINX'
+        proxy_ssl_verify on;
+        proxy_ssl_server_name on;
+NGINX
+            else
+              cat >> "$HTTPS_OUT" <<'NGINX'
+        proxy_ssl_verify off;
+        proxy_ssl_server_name on;
+NGINX
+            fi
+          ;;
+        esac
+
+        cat >> "$HTTPS_OUT" <<'NGINX'
+        client_max_body_size 50m;
+        proxy_connect_timeout 60s;
+        proxy_send_timeout 60s;
+        proxy_read_timeout 60s;
+    }
+
+    location @service_down {
+        default_type text/html;
+        return 503 "<!doctype html><html><head><meta charset='utf-8'><title>Service temporarily unavailable</title></head><body style='font-family:sans-serif;margin:3rem'><h1>$server_name nicht erreichbar</h1><p>Der Dienst ist momentan nicht verfügbar. Bitte später erneut versuchen.</p></body></html>";
+    }
+
+}
+NGINX
+      fi
+      # <<< END NEW
+    fi
+
+    # 80->443 Redirect-Server nur, wenn gewünscht
+    if [ "$HTTP_BEHAVIOR" = "redirect" ]; then
+      cat > "$HTTP_REDIRECT_OUT" <<NGINX
+# Auto-generated – 80->443 redirect for $SERVER_NAME
+server {
+    listen 80;
+    listen [::]:80;
+    server_name $SERVER_NAME;
+
+    # ACME-Ausnahme
+    location ^~ /.well-known/acme-challenge/ {
+        root /var/www/certbot;
+        default_type "text/plain; charset=utf-8";
+    }
+
+    location / {
+        return 301 https://\$host\$request_uri;
+    }
+}
+NGINX
+    else
+      # Sicherstellen, dass kein alter Redirect liegen bleibt
+      rm -f "$HTTP_REDIRECT_OUT" 2>/dev/null || true
+    fi
+
+  else
+    echo "[connect-proxies] [-] $SERVER_NAME: keine Zertifikate (cert_domain=$CERT_DOMAIN). Entferne evtl. alte Confs."
+    rm -f "$HTTPS_OUT" "$HTTP_REDIRECT_OUT" 2>/dev/null || true
+  fi
+
+done < "$FWD_FILE"
+
+echo "[connect-proxies] nginx -t …"
+nginx -t
+echo "[connect-proxies] done."
+
+# server_name                            upstream_url                  http_behavior  websockets  verify_upstream_tls  [cert_domain]
+
+#fluidncRed.server.schooltech.ch http://appServer_TunnelHead:8120 redirect true false
+
+# 444 → 8121 (WS/WSS)
+# fluidncRedWs.server.schooltech.ch http://appServer_TunnelHead:8121 redirect true false fluidncRedWs.server.schooltech.ch 444
+#server.schooltech.ch                     local            static       false       false
+server.schooltech.ch local redirect false false server.schooltech.ch 443
+tcPortainer.server.schooltech.ch  http://thinkcentre.local:9000  redirect  true  false
+tcGuac.server.schooltech.ch  http://thinkcentre.local:9000  redirect  true  false
+ 
+#inf InformatiWeb  ist per Tunnel angeschlossen. Soll auf 97xx Ports gehen
+infPortainer.server.schooltech.ch  http://appServer_TunnelHead:9903  redirect  true  false
+infGuac.server.schooltech.ch  http://appServer_TunnelHead:9980  redirect  true  false
+ 
+#RP5 ist "Lokal" der Server
+rp5Guac.server.schooltech.ch  http://appServer_guacamole:8080  redirect  true  false
+rp5Portainer.server.schooltech.ch  http://portainer:9000  redirect  true  false
+ 
+ 
+#RP3 ist  Raspi für die Scara-Robots, per Tunnel angeschlossen. Er hat 81xx Ports am TunnelHead
+rp3Portainer.server.schooltech.ch  http://appServer_TunnelHead:8100  redirect  true  false
+rp3Guac.server.schooltech.ch  http://appServer_TunnelHead:8180  redirect  true  false
+fluidncRed.server.schooltech.ch http://appServer_TunnelHead:8120 redirect true false 
+fluidncWhite.server.schooltech.ch https://appServer_TunnelHead:8104 redirect true false 
+
+============
+Fragen:
+1) ist der aufbau einigermassen klar?
+
+2) weisst du, wo die User-Authentifizierung eingebaut wereden könnte?
+
+3) Ist es sinnvoll, das in der forwaring.conf abzuspeichern? 

forwarding.conf

@@ -26,7 +26,7 @@ fluidncWhite.server.schooltech.ch https://appServer_TunnelHead:8104 redirect tru
 
 # ThinkCentre ist ein MiniPC der neben dem einen Roboter steht. Hier sind die 97xx Ports zugewiesen
 tcGuac.server.schooltech.ch 		  http://appServer_TunnelHead:9780       redirect       false       false
-tcPortainer.server.schooltech.ch 	  http://appServer_TunnelHead:9703       redirect       false       false
+tcPortainer.server.schooltech.ch 	  http://appServer_TunnelHead:9703       redirect  true  false 
 tcSimulation.server.schooltech.ch        https://appServer_TunnelHead:9712            redirect       true       false
 #tcVideocontroller.server.schooltech.ch   https://tcvideo:9443         redirect       true        false
 robotHoming.server.schooltech.ch	     https://appServer_TunnelHead:9793	 redirect true	fals