The authenticity of host 'izwz9c8l39itikxj328wwuz (IP地址)' can't be established.
在使用SecureCRT遠端連線阿里雲ECS時，啟動hadoop：
輸入命令：./sbin/start-dfs.sh
報錯如下：
The authenticity of host 'izwz9c8l39itikxj328wwuz (IP地址)' can't be established.
分析原因：發現是由於使用了root使用者，將使用者改為普通使用者xxx即可正常啟動。
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在使用SecureCRT遠端連線阿里雲ECS時，啟動hadoop： 輸入命令：./sbin/start-dfs.sh 報錯如下： The authenticity of host 'izwz9c8l39itikxj328wwuz (IP地址)' can't be established.
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