centOS/RedHat yum安装mysql

安装MySQL。

[root@sample ~]# yum -y install mysql-server  ← 安装MySQL
[root@sample ~]# yum -y install php-mysql  ← 安装php-mysql

配置MySQL

[root@sample ~]#vim /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

启动MySQL服务

[root@sample ~]# chkconfig mysqld on  ← 设置MySQL服务随系统启动自启动

[root@sample ~]# 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

[root@sample ~]#/etc/rc.d/init.d/mysqld start  ← 启动MySQL服务

Initializing MySQL database:         [ OK ]
Starting MySQL:              [ OK ]
MySQL初始环境设定

[1]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。

[root@sample ~]# 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>grant all on mysql.* to 'root'@'localhost' identified by 'password';
之后 就可以通过密码登录mysql了。

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