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在一台Ubuntu上安装了Mysql8.0.36,然后远程连接的时候出现错误。

Connection refused: no further information

确定连接的IP/端口正确,也确定使用的数据库账号有远程访问权限,并且确定Ubuntu防火墙配置了3306端口开放。

$ mysql -u satrex -p
> success

mysql> select user, host from mysql.user where user = 'satrex';
+--------+------+
| user   | host |
+--------+------+
| satrex | %    |
+--------+------+
$ sudo ufw status
>Status: active
To                         Action      From
--                         ------      ----
3306                       ALLOW       Anywhere
Apache Full                ALLOW       Anywhere
3306 (v6)                  ALLOW       Anywhere (v6)
Apache Full (v6)           ALLOW       Anywhere (v6)

这个时候,可以执行以下命令查看mysql的绑定配置:

sudo grep -R bind /etc/mysql

如何返回的结果是如下所示:

则执行如下命令,修改mysqldf文件:

sudo vim /etc/mysql/mysql.conf.d/mysqldf

将bind-address修改为0.0.0.0

最后重启mysql服务:

sudo systemctl restart mysql.service

搞定。

参考文章:MySQL remote connection refused

本文标签: 错误mysqlConnectioninformationrefused