如果阿里云服务器没有配置安全组，就无法远程连接mysql或者redis等等，所以记录一下我之前踩过的坑。
1.首先docker下载mysql镜像，这里参考我的博客-docker安装mysql。
2.打开阿里云服务器控制台。
3.管理实例中，点击安全组按钮。
4.添加安全组规则
![](https://img2020.cnblogs.com/blog/1959761/202003/1959761-20200305103906204-160866440.png
<p>" style="vertical-align: bottom; max-width: 100%;" class="" width="1180" height="553"></div><div> 5.添加内容如下，其中端口范围是服务器暴露的端口是什么，优先级1为最高，授权对象为能够访问的ip地址，配置完成之后电脑即可访问。</div><div><span> </span><img src=)
6.注意：在访问的时候，ip地址需要填写公网ip地址，私网IP是无法访问的。
阿里云服务器连接mysql
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