title: Install reactjs on ubuntu 18.04
body: <p>Node</p>
  
  <pre><code>curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
  sudo apt-get install -y nodejs
  </code></pre>
  
  <p>npm 5.3+</p>
  
  <pre><code>sudo npm install npm@latest -g
  </code></pre>
  
  <p>Create-React-App</p>
  
  <pre><code>npm install -g create-react-app
  
  create-react-app memory
  </code></pre>
  
  <p>When i enter "npm start", the application does not open on the browser and I can not access it via the url my.ip.public:3000.</p>
  
  <p>I disabled the firewall, it does not solve the problem. I granted another port via an .env file, it did not solve the problem.</p>
  
  <p>It is not a question of <a href="https://stackoverflow.com/questions/25997681/command-npm-start-does-nothing">duplication</a> because on the link the command "npm start" does not produce any effect, with me everything seems correct at the level of the command line ... besides, I tried the solution of your link but that does not solve the problem, it makes it worse.</p>