centos8 yum 安装mysql8

获取官方下载地址 https://dev.mysql.com/downloads/repo/yum/
下载mysql安装包：wget https://repo.mysql.com//mysql80-community-release-el8-1.noarch.rpm
将下载好的安装包挂载到本地找个路径放 cd /home/package
yum localinstall mysql80-community-release-el8-1.noarch.rpm
查看是否挂载成功
yum repolist enabled | grep “mysql.-community.”
禁用centos8.0自带的mysql模块
yum module disable mysql
安装mysql：yum install mysql-community-server
启动mysql服务
systemctl mysqld start
查看mysql服务启动状态
systemctl mysqld status
查看mysql安装时生成的随机密码
grep ‘temporary password’ /var/log/mysqld.log
登录mysql
mysql -uroot -p’刚获取到的随机密码’
修改登录密码
ALTER USER ‘root’ @‘localhost’ IDENTIFIED BY ‘您的密码’;
出现这个问题，表示密码过于简单
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
开放mysql远程访问
创建权限记录：
CREATE user ‘root’@’%’ IDENTIFIED BY ‘您的密码’;
授权：
GRANT ALL PRIVILEGES ON . TO ‘root’ @’%’ WITH GRANT OPTION;
修改密码过期策略：
ALTER USER ‘root’ @‘localhost’ IDENTIFIED BY ‘您的密码’ PASSWORD EXPIRE NEVER;
重新修改密码：
ALTER USER ‘root’ @’%’ IDENTIFIED WITH mysql_native_password BY ‘您的密码’;
刷新权限：
FLUSH PRIVILEGES;

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centos8 yum 安装mysql8

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