Centos 配置mysql

一、配置YUM源

http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm   //下载mysql源安装包

yum -y localinstall mysql57-community-release-el7-8.noarch.rpm        //安装mysql源

yum repolist enabled | grep "mysql.*-community.*"                    //检查mysql源是否安装成功
看到下图所示表示安装成功：

 

二、安装MySQL

yum install mysql-community-server //安装mysql

三、启动MySQL服务

systemctl start mysqld         //启动MySQL服务
systemctl status mysqld       //查看MySQL的启动状态

 

 

 四、开机启动

systemctl enable mysqld

systemctl daemon-reload

五、修改root本地登录密码

mysql安装完成之后，在/var/log/mysqld.log文件中给root生成了一个默认密码。通过

grep 'temporary password' /var/log/mysqld.log   找到root默认密码，然后登录mysql进行修改

grep 'temporary password' /var/log/mysqld.log                //查找登陆mysql的随机密码

mysql -uroot -p                                            //登陆mysql
输入随机密码进入mysql

ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass';  //  设置新的登陆密码