一.修改/etc/my.cnf文件default-character-set=utf8[mysqld]datadir=/var/lib/mysqlsocket=/var/lib/mysql/mysql.sockuser=mysql
一.修改/etc/my.cnf文件
default-character-set=utf8
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1
default-character-set=utf8 增加
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
[mysql] 增加
default-character-set=utf8 增加
二.启动mysql并设置隋系统启动
chkconfig mysqld on
chkconfig --list mysqld（查看系统服务）
mysqld          0:off   1:off   2:on    3:on    4:on    5:on    6:off
2-5为on，ok。
/etc/rc.d/init.d/mysqld start
三.设置密码
 /usr/bin/mysqladmin -u root password '123456'
四.测试
1.应用密码为空测试：
mysql -u root
error 1045 (28000): access denied for user 'root'@'localhost' (using password: no)
2.输入密码测试：
mysql -u root -p
enter password:
welcome to the mysql monitor.  commands end with ; or \g.
your mysql connection id is 7
server version: 5.0.77 source distmysql> ribution
mysql>
五.删除匿名用户
1.查看用户，host，密码列表方法
select user,host,password from mysql.user;
2.删除匿名用户
 select user,host from mysql.user 查看用户信息
delete from mysql.user where user=; 删除匿名用户
六.删除测试用数据库
1.show databases; 查看系统已经存在的数据库
2.drop database test;
七.对mysql进行测试
1. grant all privileges on test.* to centospub@localhost identified by '123456'; 建立对test数据库有完全操作权的名为centosput的用户
2.select user from mysql.user 查看用户存在与否
    -> ;
+-----------+
| user      |
+-----------+
| root      |
| centospub |
| root      |
| root      |
+-----------+
3.退出，并以centospub登录mysql服务器
exit
mysql -u centospub -p
enter password:
welcome to the mysql monitor.  commands end with ; or \g.
your mysql connection id is 12
server version: 5.0.77 source distribution
type 'help;' or '\h' for help. type '\c' to clear the buffer.
4.建立test数据库 create database test;
5.show databases；查看
6.use test; 链接到数据库（database changed)
7.create table test(num int,name varchar(50));建立表
8.show tables; 查看数据库中存在的表
9.insert into test valuse(1,'hello world');插入新值
10.查看插入新值
select * from test
    -> ;
+------+--------------+
| num  | name         |
+------+--------------+
|    1 | hello world! |
+------+--------------+
11.update test set; 更新表信息
12.再次查看
mysql> select * from test
    -> ;
+------+-----------------+
| num  | name            |
+------+-----------------+
|    1 | hello everyone! |
+------+-----------------+
1 row in set (0.00 sec)
13.delete from test;删除值
14.drop table test;删除test表
15.show tables；查看表，，确认
16.drop database test；删除test数据库
17.show databases;查看库，确认
八.删除测试用过的用户
1.应用root登录mysql数据库
2.revoke all privileges on *.* from centospub@localhost; 取消centospub用户对数据库的操作权限
3.delete from mysql.user where user='centospub' and host='localhost';删除
4.select user from mysql.user;查看，确认
5.flush privileges；刷新，使生效
九.重新启动http服务
/etc/rc.d/init.d/httpd restart