SSH免密码登录

SSH免密码登录Hadoop要运行在多个服务器上,因些SSH免密码登录必不可少,所有整理一下,共享。SSH无密码登录使用公钥与私钥。linux下可以用用ssh-keygen生成公钥/私钥对,以CentOS为例。假设有机器A(192.168.1.1),B(192.168.1.2)。现A通过SSH免密码
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