On Tue, 4 Mar 2008, Dan Rogart wrote:

You should definitely consider getting rid of them, otherwise people can log
in to MySQL from any host with no credentials.

They are created during installation by the mysql_install_db script.

This tells you how to remove them:
http://dev.mysql.com/doc/refman/5.0/en/default-privileges.html

i followed the instruction and typed:
mysql> DROP USER '';
ERROR 1396 (HY000): Operation DROP USER failed for ''@'%'
mysql> DROP USER ''@'localhost';
Query OK, 0 rows affected (0.00 sec)

and
mysql> DROP USER ''@'localhost';
ERROR 1396 (HY000): Operation DROP USER failed for ''@'localhost'

what's wrong here???
t. hiep

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