yum安装配置MySQL数据库
1.配置yum源
# 先安装wget
yum install wget -y
2.下载mysql源安装包
wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
3.安装数据库
yum localinstall mysql57-community-release-el7-8.noarch.rpm -y
4.检查mysql源是否安装成功
yum repolist enabled | grep "mysql.*-community.*"
yum install mysql-community-server -y
启动MySQL服务
systemctl start mysqld
查看MySQL的启动状态
systemctl status mysqld
5.设置开机启动
systemctl enable mysqld
systemctl daemon-reload
6.修改数据库修改root默认密码
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。
查看默认密码
grep 'temporary password' /var/log/mysqld.log
其中 jIDqgfoE-2KZ 就是我的默认密码
登陆数据库 mysql -uroot -p 修改默认密码 mysql> SET PASSWORD = PASSWORD('Lenovo@123'); Lenvoo@123是你的新密码 如何解决ERROR 1819 (HY000): Your password does not satisfy the current policy requirements呢? 这里直接提供解决方案文末有详细的说明 必须修改两个全局参数: 首先,修改validate_password_policy参数的值 set global validate_password_policy=0; 再修改密码的长度 set global validate_password_length=1; 再次执行修改密码就可以了 ALTER USER 'root'@'localhost' IDENTIFIED BY 'Lenovo@123';
***********允许root远程登陆********** GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'Lenovo@123' WITH GRANT OPTION; 退出数据库