騰訊雲centos7 搭建mysql環境

1、安裝mysql

##添加可以用於安裝數據庫系統的MySQL存儲庫 
yum localinstall -y https://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm

##安裝 
yum install -y mysql-community-server

##啓動 
systemctl start mysqld

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2、修改root密碼

##查看初始密碼 
grep 'temporary password' /var/log/mysqld.log

2017-10-12T02:37:57.483675Z 1 [Note] A temporary password is generated for root@localhost: **6uRg%NmxG9

mysql -u root -p 回車輸入以上查詢的密碼登錄

##關閉密碼強度校驗
set global validate_password_policy=0;
set global validate_password_length=1;

##修改初始密碼
ALTER USER 'root'@'localhost' IDENTIFIED BY 'password';
##刷新權限
FLUSH PRIVILEGES;

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3、配置遠程訪問

##備份
cp /etc/my.cnf /etc/my.cnf_bk
##編輯
vi /etc/my.cnf
##在最後面加上一行
bind-address = 0.0.0.0
##重啓
systemctl restart mysqld

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4、創建遠程訪問用戶

##創建用戶
CREATE USER 'husen'@'%' IDENTIFIED BY '123456';
##如果創建用戶提示密碼強度不夠，則用第2步中的方法關閉密碼強度校驗

##賦予遠程訪問權限
GRANT ALL PRIVILEGES ON *.* TO 'husen'@'%';

##刷新權限
FLUSH PRIVILEGES;