共计 943 个字符,预计需要花费 3 分钟才能阅读完成。
一、筹备
查看 Linux 版本信息
uname -a
卸载 Linux7 自带的 mariadb
# 查看相干包
rpm -qa | grep mariadb
# 卸载相干包
rpm -e 查出来的包名,有依赖的一起删掉就行
下载相干包
https://downloads.mysql.com/archives/community/
二、装置
写文章用的安装包
上传
将下载的包上传到服务器上
RPM 装置
程序曾经列出来了,不要错了
rpm -ivh mysql-community-common-8.0.23-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-plugins-8.0.23-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-8.0.23-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-8.0.23-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-8.0.23-1.el7.x86_64.rpm
查看
mysqladmin --version
三、启动
配置
默认的 dataDir 是对不上的。。须要批改下
vim /etc/my.cnf
datadir=/var/lib/mysql/mysql
启动
systemctl start mysqld
systemctl status mysqld
四、批改明码
查看默认明码
cat /var/log/mysqld.log | grep password
登录
mysql -u root -p
长期批改合乎规定的明码
alter user root@localhost identified by 'Root_123456';
更改明码策略
SHOW VARIABLES LIKE 'validate_password%';
set global validate_password.policy = low;
set global validate_password.length = 4;
alter user root@localhost identified by '123456';
update user set host='%' where host='localhost';
systemctl restart mysqld;
正文完