Install ruby rails environment under Ubuntu 18.04.2

1. Operating environment

Ubuntu 18.04.2 LTS

 

2. Install Ruby

apt install ruby-full -y

Judging that the installation is complete

ruby --version

gem --version

 

3. Install sqlite3

apt install libsqlite3-dev -y

 

4. Install node.js

apt install nodejs -y
apt install npm  -y

5. Install yarn

npm install -g yarn

6. Generate hello web application

rails new hello

7. Start the application

cd hello
rails server

Default port 3000

8. Access the application

localhost:3000 defaults to local access, and can be set to 0.0.0.0:3000 that can be accessed by the LAN

Change the boot mode to

rails server -b 192.168.1.58 (就是你的ip地址)
rails server -b 0.0.0.0

The result is successful: