# Dont show node red interface in web browser

**URL:** <https://discourse.nodered.org/t/dont-show-node-red-interface-in-web-browser/12731>\
**Category:** General\
**Created:** [30 June 2019 03:09 UTC](https://discourse.nodered.org/t/dont-show-node-red-interface-in-web-browser/12731 "2019-06-30T03:09:26Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Victor-t](https://avatars.discourse-cdn.com/v4/letter/v/22d042/32.png) [@Victor-t](https://discourse.nodered.org/u/Victor-t)\
**Post date:** [30 June 2019 03:09 UTC](https://discourse.nodered.org/t/dont-show-node-red-interface-in-web-browser/12731/1 "2019-06-30T03:09:26Z")

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I have used node-red in a "raspberry pi" before and it works ok. Now i want to use it in a ubuntu 18.04 OS. I have followed the tutorials in internet, but when i try access through web browser, this cant connect.

Someone knows why it happen?

Start Node-RED

Once Node-RED has started, point a browser at http://(My ip):1880  
On Pi Node-RED works better with the Firefox or Chrome browser

Use node-red-stop to stop Node-RED  
Use node-red-start to start Node-RED again  
Use node-red-log to view the recent log output  
Use sudo systemctl enable nodered.service to autostart Node-RED at every boot  
Use sudo systemctl disable nodered.service to disable autostart on boot

To find more nodes and example flows - go to [http://flows.nodered.org](http://flows.nodered.org)

# Starting as a systemd service. 30 Jun 03:07:08 - [info] Welcome to Node-RED

## 30 Jun 03:07:08 - [info] Node-RED version: v0.20.6 30 Jun 03:07:08 - [info] Node.js version: v10.16.0 30 Jun 03:07:08 - [info] Linux 4.15.0-54-generic x64 LE 30 Jun 03:07:08 - [info] Loading palette nodes 30 Jun 03:07:09 - [warn] rpi-gpio : Raspberry Pi specific node set inactive 30 Jun 03:07:09 - [warn] rpi-gpio : Cannot find Pi RPi.GPIO python library 30 Jun 03:07:10 - [info] Settings file : /home/victor-t/.node-red/settings.js 30 Jun 03:07:10 - [info] Context store : 'default' [module=memory] 30 Jun 03:07:10 - [info] User directory : /home/victor-t/.node-red 30 Jun 03:07:10 - [warn] Projects disabled : editorTheme.projects.enabled=false 30 Jun 03:07:10 - [info] Flows file : /home/victor-t/.node-red/flows\_home\_melserver.json 30 Jun 03:07:10 - [info] Creating new flow file 30 Jun 03:07:10 - [warn]

## Your flow credentials file is encrypted using a system-generated key. If the system-generated key is lost for any reason, your credentials file will not be recoverable, you will have to delete it and re-enter your credentials. You should set your own key using the 'credentialSecret' option in your settings file. Node-RED will then re-encrypt your credentials file using your chosen key the next time you deploy a change.

30 Jun 03:07:10 - [info] Starting flows  
30 Jun 03:07:10 - [info] Started flows  
30 Jun 03:07:10 - [info] Server now running at [http://127.0.0.1:1880/](http://127.0.0.1:1880/)

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<div class="post-metadata">

**Author:** ![Victor-t](https://avatars.discourse-cdn.com/v4/letter/v/22d042/32.png) [@Victor-t](https://discourse.nodered.org/u/Victor-t)\
**Post date:** [30 June 2019 03:38 UTC](https://discourse.nodered.org/t/dont-show-node-red-interface-in-web-browser/12731/2 "2019-06-30T03:38:08Z")

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I have resolved it. The problem was with the firewall, you can use sudo ufw allow 1880, and then it works