The authenticity of host '0.0.0.0 (0.0.0.0)' can't be established.
来源：互联网 发布：mac 10.10 u盘制作 编辑：程序博客网 时间：2024/06/05 17:23
安装Hadoop是出现
The authenticity of host ‘0.0.0.0 (0.0.0.0)’ can’t be established.（错误），
代码如下：
root@master:/usr/local/hadoop/hadoop-2.6.0# sbin/start-dfs.shStarting namenodes on [localhost]localhost: starting namenode, logging to /usr/local/hadoop/hadoop-2.6.0/logs/hadoop-root-namenode-master.outlocalhost: starting datanode, logging to /usr/local/hadoop/hadoop-2.6.0/logs/hadoop-root-datanode-master.outStarting secondary namenodes [0.0.0.0]The authenticity of host '0.0.0.0 (0.0.0.0)' can't be established.ECDSA key fingerprint is dc:f6:ec:22:ca:5c:5d:b2:e1:cb:0f:77:ce:f9:57:07.Are you sure you want to continue connecting (yes/no)? ^C0.0.0.0: Host key verification failed.解决方法：关闭防火墙
ubuntu 执行命令:
root@master:# ufw disable阅读全文
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