以CentOS8為例進行講解。

關閉firewalld

關閉： systemctl stop firewalld

開機禁用? ： systemctl disable firewalld

使用root用戶按照如下步驟執行

yum install -y wget

選擇一個目錄，并進行下載

wget https://dev.mysql.com/get/mysql80-community-release-el8-1.noarch.rpm

rpm -ivh mysql80-community-release-el8-1.noarch.rpm

yum install mysql-server -y

默認安裝目錄 /usr/share/mysql

如果需要取消大小寫敏感，請在啟動mysql之前進行設置：

(1)打開mysql配置文件

vim /etc/my.cnf.d/mysql-server.cnf

(2)尾部追加一行

lower_case_table_names=1

并保存，然后再初始化數據庫。

啟動mysql

systemctl start mysqld

驗證是否啟動

systemctl status mysqld

mysql安裝完成之后，默認無密碼！

登錄數據庫：

mysql -uroot

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 8 Server version: 8.0.17 Source distribution

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>

重新設置root密碼(紅色部分密碼自行修改)

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

use mysql;

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

修改加密規則(可能會報ERROR 1396 (HY000): Operation ALTER USER failed for ‘root’@’%’，再執行一次即可！)

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

更新 root 用戶密碼(允許navicat登錄)

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

刷新權限

FLUSH PRIVILEGES;

總結

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