How to run on port 3000

  • Posted April 5, 2020
  • React

I cloned my react app from git repository after installing nodejs and npm in the droplet. Once the cloning get finished I then executed the command “npm install”. After that tried to run the app using “npm start”. When opening the port 3000 as I use to do in my local machine. But while opening (ip_add:3000) the browser keeps loading and didn’t served the web page. How to make it run on port 3000, or tell me what sort of mistakes I had done. Provide me with suggestions. Thanks for the upcoming feedbacks.


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Hi @mayurkarmakar07,

It seems you haven’t opened port 3000 for external use. You’ll need to open it in order for you to be able to reach your application on the said port.

  • If you are using UFW, you can execute
sudo ufw allow 3000
  • If you are using only IPtables, you can execute
iptables -A INPUT -i eth0 -p tcp -m tcp --dport 3000 -j ACCEPT

Regards, KDSys