Linux安装mysql8.0.26版本
1.下载Linux版Mysql安装包
下载链接: https://downloads.mysql.com/archives/community/

2.上传MySQL安装包
3.创建目录,并解压
mkdir mysql
tar -xvf mysql-8.0.26-1.el7.x86_64.rpm-bundle.tar -C mysql
4.安装mysql
cd mysql
rpm -ivh mysql-community-common-8.0.26-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-plugins-8.0.26-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-8.0.26-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-compat-8.0.26-1.el7.x86_64.rpm
yum install openssl-devel
rpm -ivh mysql-community-devel-8.0.26-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-8.0.26-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-8.0.26-1.el7.x86_64.rpm
- 启动MySQL服务
systemctl start mysqld
systemctl restart mysqld
systemctl stop mysqld
6.查询自动生成的root用户密码
grep 'temporary password' /var/log/mysqld.log
7.登录mysql
mysql -u root -p
8.修改root用户密码
ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';
执行上述的SQL会报错,原因是因为设置的密码太简单,密码复杂度不够。我们可以设置密码的复杂度为简单类型,密码长度为6。
set global validate_password.policy = 0;
set global validate_password.length = 6;
降低密码的校验规则之后,再次执行上述修改密码的指令。
9.创建用户
默认的root用户只能当前节点localhost访问,是无法远程访问的,我们还需要创建一个root账户,用户远程访问
create user 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123456';
10.给root用户分配权限
grant all on *.* to 'root'@'%';