mysql数据库访问权限限制设置

---只能本地访问，设置随意访问

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

flush privileges;

---随意访问，设置只能本地访问

update user set host = "localhost" where user = "hello" and host= "%";

flush privileges;

---设置固定的ip可以访问

GRANT ALL PRIVILEGES ON *.* TO 'hello'@'133.22.88.77' IDENTIFIED BY 'mysql_password' WITH GRANT OPTION;

flush privileges;