// mysql root password 등록

[root@linux mysql]# mysql -u root -p mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 1 to server version: 4.0.23-Max

Type 'help;' or 'h' for help. Type 'c' to clear the buffer.

mysql> update user set password=password('비밀번호입력') where user='root';
Query OK, 2 rows affected (0.00 sec)
Rows matched: 2  Changed: 2  Warnings: 0

mysql> flush privileges;  <==  mysql 재시동
Query OK, 0 rows affected (0.00 sec)

mysql> quit

// 접속 확인하기

[root@linux mysql]# mysql -u root -p mysql
Enter password:
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 4 to server version: 4.0.23-Max

Type 'help;' or 'h' for help. Type 'c' to clear the buffer.