MySQL添加允许登录IP

$ telnet 192.168.1.8 3306
host 192.168.1.4 is not allowed to connect to this mysql server

2. 允许特定客户端 ip 地址连接

$ mysql -u root -p
Enter password:

mysql> use mysql

mysql> GRANT ALL ON *.* to root@'192.168.1.4' IDENTIFIED BY 'your-root-password'; 

mysql> FLUSH PRIVILEGES;

注意： your-root-password 填写你的服务器 mysql 的密码