1.配置MySQL yum安裝源和安裝：
#配置MySQL5.7的安裝源
#https://repo.mysql.com/mysql57-community-release-el7.rpm
#https://repo.mysql.com/mysql57-community-release-el7-11.noarch.rpm
rpm -Uvh https://repo.mysql.com/mysql57-community-release-el7-11.noarch.rpm
#安裝MySQL 5.7社區版服務以及客戶端工具
yum --enablerepo=mysql57-community install -y mysql-community-server
yum install -y mysql-community-client
#配置MySQL8.0的安裝源
#https://repo.mysql.com/mysql80-community-release-el7.rpm
#https://repo.mysql.com/mysql80-community-release-el7-1.noarch.rpm
rpm -Uvh https://repo.mysql.com/mysql80-community-release-el7-1.noarch.rpm
#安裝MySQL 8.0社區版服務以及客戶端工具
yum --enablerepo=mysql80-community install -y mysql-community-server
yum install -y mysql-community-client
2. #啓動Mysql服務
systemctl restart mysqld
systemctl enable mysqld
3.查看mysql爲root用戶生成的臨時密碼
#grep "A temporary password" /var/log/mysqld.log
4.Mysql安裝配置,根據提示設置新的密碼和密碼策略
#mysql_secure_installation
#ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '你的密碼';
#update user set Host='%' where User='root';
登錄Mysql:
