Custom domain in rails is not working for app.test.com:3000

Question

My company has a rails 5.2.4 application, after starting the development server by

rails s

The server is running on localhost:3000. But a company is using app.test.com:3000 domain in order to access the application...

Answer 1

You can just use: lvh.me, more about subdomain

Run rails s -p 3000 -b lvh.me

Visit app.lvh.me:3000