SSH 无法登陆

1.描述就跟吃了香蕉和枣的感觉一样 某天下午登陆ssh突然就上不去了，提示如下 ssh: connect to host port 22: Operation timed out ping端口不通这时候我非常诧异 ➜ ~ telnet IP 22 Trying ... telnet: connect to address: Connection refused telnet: Unable t

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