详解远程连接Mysql数据库的问题(ERROR 2003 (HY000))

在我们用客户端及其远程连接服务器mysql数据库的过程中，容易出现下面问题：
问题代码代码
error 2003 (hy000): can't connect to mysql server on '192.168.0.19' (111) 
error 2003 (hy000): can't connect to mysql server on '192.168.0.19' (111)      这个 原因就是mysql数据库的默认配置文件my.cnf（linux下）中的bind-address默认为127.0.0.1，所以就算你创建了可以 remote访问的用户，你也不能使用mysql -h命令进行访问，若访问就会出现上出问题，因为此时mysql只接受localhost，所以需要把bind-address屏蔽掉。

my.cnf一般在/etc/mysql下面，如果不在使用locate my.cnf查找，修改前的my.cnf配置文件为：

修改前的my.cnf配置文件代码
# 
# instead of skip-networking the default is now to listen only on 
# localhost which is more compatible and is not less secure. 
bind-address           = 127.0.0.1 
#
# instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address           = 127.0.0.1
我们需要做的就是屏蔽这个bind-address代码，屏蔽后代码为：

屏蔽后my.cnf配置文件代码
# 
# instead of skip-networking the default is now to listen only on 
# localhost which is more compatible and is not less secure. 
#bind-address           = 127.0.0.1 
#
# instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
#bind-address           = 127.0.0.1
现在你就可以用mysql -h命令进行你想做的操作了，如登录系统：

登陆数据库代码
mysql -h 192.168.0.19 -u root -p