How to Install and Run Node-RED on CentOS 7 via npm
This guide walks through installing Node on CentOS 7, using npm to install Node-RED globally, launching the service, and opening the firewall so the editor is reachable at port 1880, including the required unsafe-perm flag for proper permission handling.
Node-RED is a flow‑based development tool for wiring together hardware devices, APIs and online services; the article first points to a Windows installation guide for reference.
On CentOS 7 the first step is to install Node.js using a binary package and configure the environment variables. The binary download link is provided:
https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/121885779After confirming that node runs correctly, Node-RED is installed globally with npm, using the --unsafe-perm flag to avoid permission issues: npm install -g --unsafe-perm node-red Node-RED is then started simply by executing: node-red Finally, the firewall must allow traffic on port 1880; once opened, the Node-RED editor can be accessed via http://<server_ip>:1880. An illustration of the opened port is shown below.
Signed-in readers can open the original source through BestHub's protected redirect.
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