To skip authorizations and login without password to MySql server,
- sudo vi /etc/mysql/my.cnf
- Add the line skip-grant-tables after the linewhich reads skip-external-locking.
- Optionally comment the line bind-address = 127.0.0.1 if the db has to be accessed from external devices via TCP.
- Save and quit vim.
- restart mysql server ( sudo /etc/init.d/mysql restart in ubuntu)