Connecting to 10.0.0.200:22... Could not connect to '10.0.0.200' (port 22): Connection failed.

今天遇到一個關於XShell連接虛擬機中的centos系統的奇葩問題，在連接的時候報錯如下： Connecting to 10.0.0.200:22... Could not connect to '10.0.0.200' (port 22): Connection failed.  Type `help' to learn how to use Xshell prompt. 一開始以爲是系統的問

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