centos 安装mysql5.7版本
参考资料:https://www.linuxidc.com/Linux/2016-09/135288.htm
https://www.cnblogs.com/ivictor/p/5142809.html
1、配置yum源
下载mysql源安装包,shell> wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
安装mysql源:shell> yum localinstall mysql57-community-release-el7-8.noarch.rpm
2、安装mysql
shell> yum install mysql-community-server
3、启动mysql服务
systemctl start mysqld
4、开机启动
systemctrl enable mysqld
systemctrl daemon-reload
5、修改root本地密码
首先在/var/log/mysqld.log文件中,找到默认密码,如:A temporary password is generated for root@localhost: -g/-uX&JH1y7
-g/-uX&JH1y7为默认密码。
登录msyql
mysql -u root -p
输入默认密码
修改密码
ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!';
注意:一般情况下,此时会有报错,ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
解决方法:设置密码策略
mysql> set global validate_password_policy=0;
重新设置密码。
6、添加远程登录用户
liunx默认只允许root账号在本地登录,如果要在机器登录,必须修改root允许远程连接,或者添加一个允许远程连接的账号
GRANT ALL PRIVILEGES ON *.* TO 'yangxin'@'%' IDENTIFIED BY 'Yangxin0917!' WITH GRANT OPTION;
yangxin为账号名,Yangxin0917!为密码。
7、配置默认编码为utf8
修改/etc/my.cnf配置文件,在[mysqld]下添加编码配置,如
[mysqld]
character_set_server=utf8
init_connect='SET NAMES utf8'
重启mysql服务。systemctl restart mysqld
查看数据默认编码
mysql> show variables like '%character%';