mysql密码修改，创建远程用户记录
2022年7月8日
方法1： 用SET PASSWORD命令
mysql -u root
mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('newpass');
方法2：用mysqladmin
mysqladmin -u root password "newpass"
如果root已经设置过密码，采用如下方法
mysqladmin -u root password oldpass "newpass"
方法3： 用UPDATE直接编辑user表
mysql -u root
mysql> use mysql;
mysql> UPDATE user SET Password = PASSWORD('newpass') WHERE user = 'root';
mysql> FLUSH PRIVILEGES;
丢失root密码
mysqld_safe --skip-grant-tables&
mysql -u root mysql
mysql> UPDATE user SET password=PASSWORD("new password") WHERE user='root';
mysql> FLUSH PRIVILEGES;
创建远程用户并授权
创建用户
create user test identified by '123456';
远程授权
grant all privileges on *.* to 'test'@'%'identified by '123456' with grant option;
# grant all privileges on database.table to user@ip identified by password with grant option;
刷新权限
flush privileges ;
开启Linux 防火墙
iptables -I INPUT 4 -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT #允许 3306 端口
service iptables save
