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Node-RED - Installation unter Debian 13 (Trixie)

Abhängigkeiten installieren

Die für die Installation benötigten Programme installieren:

apt install build-essential git curl sudo ssl-cert
Neuen Benutzer anlegen und Berechtigungen setzen

Für Node-RED wird ein neuer Benutzer angelegt:

adduser nodered

Der Benutzer kommt in die Gruppe sudoers:

usermod -aG sudo nodered

Für HTTPS benötigt der Benutzer Zugriff auf die Zertifikate und den private Key:

usermod -aG ssl-cert nodered

Um die Änderungen durchzuführen den Rechner neu starten!

Die folgenden Schritte sind mit dem neu angelegten Benutzer durchzuführen!

Installation
bash <(curl -sL https://github.com/node-red/linux-installers/releases/latest/download/install-update-nodered-deb)

Falls der Start der setting-Datei Initialisierung nicht automatisch nach Installation erfolgt, kann diese mit dem Befehl node-red admin init gestartet werden.

Node-RED update script for : nodered@noderedserver

This script checks if Node.js is installed, and will try to install
Node.js 24 if it is not found.

It will then remove the old core of Node-RED, before then installing the latest
version. You can also optionally specify the version required.

To do all this it runs commands as root - please satisfy yourself that this will
not damage your Pi, or otherwise compromise your configuration.

If in doubt please backup your SD card first.

See the optional parameters by re-running this command with --help

Node.js and Npm not found - will try to install Node.js 24

Are you really sure you want to do this ? [y/N] ? y

Would you like to install the Pi-specific nodes ? [y/N] ? n


Running Node-RED install for user nodered at /home/nodered on debian

  Will try to install Node.js 24
  Install Node.js                     ✔   v24.18.1 : Npm 11.16.0
  Stop Node-RED                       ✔
  Remove old version of Node-RED      ✔
  Clean npm cache                     ✔
  Install Node-RED core               ✔   5.0.4
  Npm rebuild existing nodes          ✔
  Add shortcut commands               ✔
  Update systemd script               ✔
  All done.

Restarting Node-RED service
Restarted  Node-RED
Started :  So 02 Aug 2026 14:35:01 CEST
Finished:  So 02 Aug 2026 14:35:57 CEST

**********************************************************************************
 ### WARNING ###
 DO NOT EXPOSE NODE-RED TO THE OPEN INTERNET WITHOUT SECURING IT FIRST

 Even if your Node-RED doesn't have anything valuable, (automated) attacks will
 happen and could provide a foothold in your local network

 Follow the guide at https://nodered.org/docs/user-guide/runtime/securing-node-red
 to setup security.

 ### ADDITIONAL RECOMMENDATIONS ###
  - You can customise the initial settings by running:

      node-red admin init

**********************************************************************************


Node-RED Settings File initialisation
=====================================
This tool will help you create a Node-RED settings file.

✔ Settings file · /home/nodered/.node-red/settings.js
✔ That file already exists. Are you sure you want to overwrite it? · Yes

Share Anonymouse Usage Information
==================================
✔ Node-RED can notify you when there is a new version available.
This ensures you keep up to date with the latest features and fixes.
This requires sending anonymised data back to the Node-RED team.
It does not include any details of your flows or users.
For full information on what information is collected and how it is used,
please see https://nodered.org/docs/telemetry
 · No, do not send my usage data

User Security
=============
✔ Do you want to setup user security? · Yes
✔ Username · admin
✔ Password · ********
✔ User permissions · full access
✔ Add another user? · No

Projects
========
The Projects feature allows you to version control your flow using a local git repository.

✔ Do you want to enable the Projects feature? · No

Flow File settings
==================
✔ Enter a name for your flows file · flows.json
✔ Provide a passphrase to encrypt your credentials file · ********

Editor settings
===============
✔ Select a theme for the editor. To use any theme other than "default", you will need to install @node-red-contrib-themes/theme-collection in your Node-RED user directory. · default

✔ Select the text editor component to use in the Node-RED Editor · monaco (default)

Node settings
=============
✔ Allow Function nodes to load external modules? (functionExternalModules) · Yes


Settings file written to /home/nodered/.node-red/settings.js
Konfiguration HTTPS

Änderungen in der settings.js (Verzeichnis .node-red):

    https: function() {
        // This function should return the options object, or a Promise
        // that resolves to the options object
        return {
            key: require("fs").readFileSync('/etc/ssl/private/ssl-cert-snakeoil.key'),
            cert: require("fs").readFileSync('/etc/ssl/certs/ssl-cert-snakeoil.pem')
        }
    },
     
    httpsRefreshInterval : 12,
         
    requireHttps: true,

Node-RED Befehle

Node-RED stoppen:

node-red-stop

Node-RED starten:                       

node-red-start 

Die letzten Logs ansehen:                       

node-red-log
Passwort ändern:
node-red admin hash-pw



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