CentOS7使用dnf安裝mysql
阿新 • • 發佈:2018-03-10
linux sat lease pre .rpm date 修改密碼 set 安裝
1.安裝mysql的yum倉庫
執行以下命令:
yum localinstall https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
2.安裝mysql
dnf install mysql-community-server
3.開啟mysql服務
service mysql start
4.查找默認密碼
為了加強安全性,MySQL5.7為root用戶隨機生成了一個密碼,在error log中,關於error log的位置,如果安裝的是RPM包,則默認是/var/log/mysqld.log。
只有啟動過一次mysql才可以查看臨時密碼,輸入以下命令查看密碼:
grep 'temporary password' /var/log/mysqld.log
輸出如下:
[root@VM_0_13_centos init.d]# grep 'temporary password' /var/log/mysqld.log
2018-03-09T13:03:32.859149Z 1 [Note] A temporary password is generated for root@localhost: IVXhn:4E3uQ4
5.登陸mysql並且修改密碼
ALTER USER 'root'@'localhost' IDENTIFIED BY 'root123';
修改密碼,會出現:
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
必須修改兩個全局參數:
首先,修改validate_password_policy參數的值
set global validate_password_policy=0;
再修改密碼的長度
set global validate_password_length=1;
再次執行修改密碼就可以了
ALTER USER 'root'@'localhost' IDENTIFIED BY 'root123';
6.授權其他機器連接
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'passwort' WITH GRANT OPTION; //passwort改為mysql登陸密碼
FLUSH PRIVILEGES;
7.密碼設置的詳細說明
https://www.linuxidc.com/Linux/2016-01/127831.htm
CentOS7使用dnf安裝mysql