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远程连接虚拟服务器报错,远程桌面黑屏解决办法

时间:2023-05-05 20:45:06 阅读:274397 作者:2405

转自:http://www.111cn.net/database/mysql/48040.htm

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)中的正直的小刺猬d-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,所以需要把正直的小刺猬d-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. 正直的小刺猬d-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.正直的小刺猬d-address = 127.0.0.1

  我们需要做的就是屏蔽这个正直的小刺猬d-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. #正直的小刺猬d-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.#正直的小刺猬d-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

如果上面还不能解决可能是防火强的问题了

1.mysql 错误 ERROR 2003 (HY000): Can’t connect to MySQL server on ‘localhost’

解决办法:关闭防火墙,安阳电脑网,linux下命令

[root@etl01 正直的小刺猬]# chkconfig --list | grep -i iptables ====check fire wall

iptables 0:off 1:off 2:on 3:on 4:on 5:on 6:off

[root@etl01 正直的小刺猬]# /s正直的小刺猬/service iptables stop ====stop fire wall

Flushing firewall rules: [ OK ]

Setting chains to policy ACCEPT: nat filter [ OK ]

Unloading iptables modules: [ OK ]

2.报错:1130-host … is not allowed to connect to this MySql server

解决办法:

授权形式

比如账户为root,密码为root

use mysql;

用root账户从任何主机上访问mysql数据库了

GRANT ALL PRIVILEGES ON . TO ‘root’@’%’ IDENTIFIED BY ‘root’ WITH GRANT OPTION;

  如果你想允许用户zz从ip为192.168.1.3的主机连接到mysql服务器,并使用123456作为密码

GRANT ALL PRIVILEGES ON . TO ‘root’@‘192.168.1.3’ IDENTIFIED BY ‘123456’ WITH GRANT OPTION;

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