I installed MySQL on Ubuntu 16.04. I can login to MySQL shell by typing the command: 

```
sudo mysql -u root

```

However, I also want to see the DB via MySQL Workbench. I installed it on my computer, and when I go to Database -> Connect to Database I get the following window: 

[![enter image description here](https://i.stack.imgur.com/5JktZ.png)](https://i.stack.imgur.com/5JktZ.png)

When I click 'OK' I get the following dialog: 

[![enter image description here](https://i.stack.imgur.com/Zn46F.png)](https://i.stack.imgur.com/Zn46F.png)

I checked 1 and 2. 3 I don't know how to check and as for 4, I don't know what is the password at all (I don't have to use it to login via the console). 

Do you know how to resolve it?