ssh本机连接connect to host localhost port 2222: Connection refused

在根据博客[https://zhuanlan.zhihu.com/p/355748937]配置和连接ssh服务的过程中，连接失败。
尝试了很多方法都不行，最后怀疑端口被占用，解决方法：
重新配置/etc/ssh/sshd_config文件。将端口修改为默认的22。

sudo vi /etc/ssh/sshd_config

然后重启ssh，改用22端口连接就可以了。

service ssh restart

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ssh本机连接connect to host localhost port 2222: Connection refused

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