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另一種公鑰私鑰認證方式

A機器到B機器無密

在A機器上操作:

vim ~/.ssh/config

Host 192168

    Hostname 192.168.1.2

    User root

    IdentityFile ~/.ssh/id_rsa

ssh-keygen

cat id_rsa.pub

ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA1Bo9dpBxfTqb4qzJ1K2cZCrc/D43hMV4aeGn7m9Q8LgnDAC+/YJANjJ/TeIPJDOuVAEZD23eoOT1j1EtOJLV5wjr8NLtoT5rJAqelnKfiJiW4BhrimGh5te1BVfTq2OjBIEsg+urfD02CwwvWVjWCo2hBRqnigIm7UnQp9I36ggu1rtko1vvg9E8/gI9IFieZUX4R0YxY/1PHsYhQXdOy0xnJi+e2qGBXCMKELmumPuYZpw+9c/+Yi8Jcj4Xccct4PgQHfa0kICec9CeuYF5P1FRQpp+BcoTUTVs8i39ECJvU0FWddzh4sWTxNW9ZDSQE66387DNelUcBI/Kxm4G8w== 

将如下内容複制到B機器上的vim ~/.ssh/authorized_keys裡邊

在A機器上執行ssh 192168(Host名字)即可無密登入到目标機