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SSH keyless login

2022-07-19 13:34:00 【The code family】

（1） Generate public and private keys

/home/atguigu/.ssh

[[email protected] .ssh]$ ssh-keygen -t rsa

Then knock （ Three carriage returns ）, Two files will be generated id_rsa（ Private key ）、id_rsa.pub（ Public key ）

（2） Copy the public key to the target machine for password free login

[[email protected] .ssh]$ ssh-copy-id hadoop102

[[email protected] .ssh]$ ssh-copy-id hadoop103

[[email protected] .ssh]$ ssh-copy-id hadoop104

Be careful ：

Still need to be in hadoop103 On use atguigu Configure your account and log in to hadoop102、hadoop103、hadoop104 The server On .

Still need to be in hadoop104 On use atguigu Configure your account and log in to hadoop102、hadoop103、hadoop104 The server On .

Still need to be in hadoop102 On use root account number , Configure password free login to hadoop102、hadoop103、hadoop104;

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