Mysql初始化root密碼和容許遠程訪問

mysql默認root用戶沒有密碼，輸入mysql –u root 進入mysql

一、初始化root密碼

進入mysql數據庫

mysql>update user set password=PASSWORD('123456') where User='root';

二、容許mysql遠程訪問，有如下幾中方式

若是不容許遠程訪問，會報以下的錯誤：

ERROR 1130 (HY000): Host ‘1.2.3.4’ is not allowed to connect to this MySQL server

(1)、Change mysql config

vim /etc/mysql/my.cnf

Comment out following lines.

#bind-address           = 127.0.0.1
#skip-networking

If you do not find skip-networking line, add it and comment out it.

Restart mysql server.

/etc/init.d/mysql restart

(2)、Change GRANT privilege

Run a command like below to access from all machines. (Replace USERNAME and PASSWORD by your credentials.)

mysql> GRANT ALL PRIVILEGES ON *.* TO 'USERNAME'@'%' IDENTIFIED BY 'PASSWORD' WITH GRANT OPTION;

Run a command like below to give access from specific IP. (Replace USERNAME and PASSWORD by your credentials.)

mysql> GRANT ALL PRIVILEGES ON *.* TO 'USERNAME'@'1.2.3.4' IDENTIFIED BY 'PASSWORD' WITH GRANT OPTION;

Finally, you may also need to run:

mysql> FLUSH PRIVILEGES;