Xshell错误：Could notconnect to ‘xxxx‘ (port 22): Connection failed.---xshell 无法连上CentOS7

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按照这个链接,步骤一步步来,就能实现连接Xshell

https://www.cnblogs.com/moox/p/12110075.html

在过程中出现 ssh重启报错或者无法重启-Failed to restart ssh.service: Unit not found

参考链接:https://blog.csdn.net/zzk00007/article/details/93882243