mysql> SELECT User, Host FROM user;
+------------------+-----------+
| User             | Host      |
+------------------+-----------+
| debian-sys-maint | localhost |
| mysql.session    | localhost |
| mysql.sys        | localhost |
| root             | localhost |
+------------------+-----------+
4 rows in set (0.00 sec)

mysql> select Host, User, authent
+-----------+------------------+-
| Host      | User             |
+-----------+------------------+-
| localhost | root             |
| 127.0.0.1 | root             |
| ::1       | root             |