大數據——集羣搭建過程當中的異常和ssh免密登錄

ssh免密登錄 //進到用戶.ssh目錄下 [root@CentOS1 .ssh]$ ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (/home/beifeng/.ssh/id_rsa): Enter passphrase (empty for no pa

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