mysql 安装
一、安装
#
yum -y install mysql-server
二、配置
# vi /etc/my.cnf ← 编辑MySQL的配置文件
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1 ← 找到这一行,在这一行的下面添加新的规则,让MySQL的默认编码为UTF-8
default-character-set = utf8 ← 添加这一行
然后在配置文件的文尾填加如下语句:
[mysql]
default-character-set = utf8
三、启动MySQL,并让MySQL在系统重新启动后随系统自动启动
# chkconfig mysqld on
← 设置MySQL服务随系统启动自启动
# chkconfig --list mysqld
← 确认MySQL自启动
mysqld 0:off 1:off 2:on 3:on 4:on 5:on
6:off ← 如果2--5为on的状态就OK
#
/etc/rc.d/init.d/mysqld start
← 启动MySQL服务
Initializing MySQL database: [
OK
]
Starting MySQL: [
OK
]
四、
为MySQL的root用户设置密码
MySQL在刚刚被安装的时候,它的root用户是没有被设置密码的。
首先来设置MySQL的root密码。
#
mysql -u root
← 用root用户登录MySQL服务器
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2 to server version: 4.1.20
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql>
select user,host,password from mysql.user;
← 查看用户信息
+------+------------------------------+---------------+
| user | host | password |
+------+------------------------------+---------------+
| root | localhost | |
← root密码为空
| root | sample.centospub.com | |
← root密码为
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