Open terminal and log on as the user created in the install:
su - [frappe-user]
Enter the password then:
You will see a bunch of text in the terminal - look for the following text.
Running on http://0.0.0.0:8000/
Right click and open link. This will open your project in your browser.
Log in and you will be at the desk (backend) of your project - to see the website go to the top right of the screen you will see "settings" - click on this then "view website"
To quit go back to the terminal and Ctrl+C