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MYSQL ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.10.210' (111) 解决方法

程序员文章站 2022-04-21 08:17:27
今天在测试MySQL的连接时候,发现连接不通过,并报错ERROR 2003 (HY000): Can't connect to mysql server on '192.168.10.210' (111) 测试代码: 谷歌了一下之后,原来是在mysql的my.cnf中有下面一段代码: 如果要让mys ......

今天在mysql的连接时候,发现连接不通过,并报错error 2003 (hy000): can't connect to mysql server on '192.168.10.210' (111) 
测试代码:

require 'mysql2'
client = mysql2::client.new(:host=>"192.168.10.210",:username=>'root',:password=>"root")
puts results = client.query("show databases;")

谷歌了一下之后,原来是在mysql的my.cnf中有下面一段代码:

# 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  #这里默认监听本地localhost

如果要让mysql监听到其他的地址,可以将bind-address = 127.0.0.1注释掉。 
或者将bind-address = 0.0.0.0监听所有的地址

屏蔽掉之后再次运行代码又出现:host '192.168.10.83' is not allowed to connect to this mysql server 
MYSQL ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.10.210' (111) 解决方法 
解决方法: 
如果想让192.168.10.83能够连接到本地的这个数据库,要让数据库给其分配权限,登录mysql,执行:(username 和 password是登录mysql的用户名和密码)

grant all privileges on *.* to 'username'@'192.168.10.83' identified by 'password' with grant option;

如果要想所有的外部ip地址都能够访问使用mysql,可以执行下面:

grant all privileges on *.* to 'username'@'%' identified by 'password' with grant option;

之后执行刷新数据库:

flush privileges;

如果要查看用户的权限,可以执行:

> show grants for 'root'@192.168.10.83

MYSQL ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.10.210' (111) 解决方法

文章转自:https://www.cnblogs.com/zmdComeOn/p/10376015.html