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CentOS 7安装MySQL8.0.15教程 站长亲测

关闭firewalld

关闭: systemctl stop firewalld

开机禁用  : systemctl disable firewalld

使用root用户按照如下步骤执行

yum install -y wget

选择一个目录,并进行下载

wget https://dev.mysql.com/get/mysql80-community-release-el7-2.noarch.rpm

rpm -ivh mysql80-community-release-el7-2.noarch.rpm

yum install mysql-community-server -y

默认安装目录 /usr/share/mysql-8.0

如果需要取消大小写敏感,请在启动mysql之前进行设置:

(1)打开mysql配置文件

vim /etc/my.cnf

(2)尾部追加一行

lower_case_table_names=1

并保存,然后再初始化数据库。

启动mysql

systemctl start mysqld

验证是否启动

systemctl status mysqld

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。通过下面的方式找到root默认密码,然后登录mysql进行修改:

grep 'temporary password' /var/log/mysqld.log

2019-03-03T06:08:09.144471Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: rgZt#Pi4h6i9

可以看到初始密码为rgZt#Pi4h6i9

登录数据库:

mysql -uroot -p

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.15

Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.

mysql>

重新设置root密码

alter user 'root'@'localhost' identified by 'Dongyun@8888';

use mysql;

update user set host = '%' where user = 'root';

修改加密规则(可能会报ERROR 1396 (HY000): Operation ALTER USER failed for ‘root’@’%’,再执行一次即可!)

ALTER USER 'root'@'%' IDENTIFIED BY 'Dongyun@8888' PASSWORD EXPIRE NEVER;

更新 root 用户密码(允许navicat登录)

ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'Dongyun@8888';

刷新权限

FLUSH PRIVILEGES;

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