ERROR 1045(28000) : Access denied for user 'root@localhost' (using password: no )

I'm trying to install queXS cati app on my Ubuntu desktop and I installed MySQL server and PHP 5 and I cannot login into MySQL server as root without password:

mysql -u root 

it says

ERROR 1045(28000) : Access denied for user 'root@localhost' (using password: no )

But it's okay when I enter mysql -u root -p

I can't figure out what the problem is.

3 Answers

Add switch -p for password based login:

mysql -u root -p

That is the normal behaviour. You set a root password for your database so from now on you can't access it without password. That is why it reports:

Access denied for user 'root@localhost' (using password: no )

Obviously when you give the password with the -p switch you succeed.

In simple words your "root" session do not know password to mysql root user.

If you want to make easier to access your mysql

create .my.cnf in /root/

and put in it

[mysqladmin] user = root password = mysqlrootpassword
[mysql] user = root password = mysqlrootpassword
[mysqldump] user = root password = mysqlrootpassword

where offcourse mysqlrootpassword is your password for mysql's root password so when you execute mysql it uses this password

Remeber about safety of this file - put secure rights, so nobody on your server can read it!

Login to webmin and under servers, access the mySQLdatabase server.You will then be able to set the (user) password provided you have:

mysql -u (**user**) -p < /usr/share/doc/rsyslog-mysql-5.8.10/createDB.sql.

The web gui is easy but to be secure use the terminal.

cheers.