mysql远程连接 Host * is not allowed to connect to this MySQL server

localhost改成%

进入mysql的BIN目录

mysql -u root -p
mysql>use mysql;
mysql>update user set host =’%'where user =’root’;
mysql>flush privileges;

mysql -u root -p

mysql>use mysql;

mysql>update user set host =’%'where user =’root’;

mysql>flush privileges;

具体分析

1、在本机登入mysql后，更改“mysql”数据库里的“user”表里的“host”项，从”localhost”改为’%’

mysql>
mysql>use mysql;
mysql>select 'host' from user where user='root';

mysql>

mysql>use mysql;

mysql>select 'host' from user where user='root';

#查看mysql库中的user表的host值（即可进行连接访问的主机/IP名称）

mysql>update user set host = '%' where user ='root';

1	mysql>update user set host = '%' where user ='root';

#修改host值（以通配符%的内容增加主机/IP地址，当然也可以直接增加某个特定IP地址，如果执行update语句时出现ERROR 1062 (23000): Duplicate entry ‘%-root’ for key ‘PRIMARY’ 错误，需要select host from user where user = ‘root’;

＃如果报如下错误

Error Code: 1175. You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column To disable safe mode

执行命令

SET SQL_SAFE_UPDATES = 0

1	SET SQL_SAFE_UPDATES = 0

查看一下host是否已经有了%这个值，如果有了直接执行下面的flush privileges;即可）

mysql>flush privileges;
mysql>select host,user from user where user='root';
mysql>quit

mysql>flush privileges;

mysql>select host,user from user where user='root';

mysql>quit