ubuntu配置SSH免密碼登錄,提示Permission denied (publickey).

在使用EC2的ubuntu實例建立Hadoop集羣時,配置ssh密鑰出現問題:html ubuntu@ip-172-31-30-202:~$ ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (/home/ubuntu/.ssh/id_rsa):  Enter
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