Xshell错误:Could notconnect to ‘xxxx‘ (port 22): Connection failed.---xshell 无法连上CentOS7
**按照这个链接,步骤一步步来,就能实现连接Xshellhttps://www.cnblogs.com/moox/p/12110075.html在过程中出现ssh重启报错或者无法重启-Failedtorestartssh.service:Unitnotfound参考链接:https://blog.csdn.net/zzk00007/article/details/93882243