配置ssh等效连接(ssh-copy-id)

环境:
OS:Centos 7
机器A:192.168.1.100
机器B:192.168.1.102
机器C:192.168.1.103

目的：配置以上3台机器免密等效连接

1.机器A:192.168.1.100上操作
su - postgres
ssh-keygen -t rsa
ssh-copy-id -i postgres@192.168.1.100
ssh-copy-id -i postgres@192.168.1.102
ssh-copy-id -i postgres@192.168.1.103

ssh 192.168.1.100 date
ssh 192.168.1.102 date
ssh 192.168.1.103 date

 

2.机器B:192.168.1.102上操作
su - postgres
ssh-keygen -t rsa
ssh-copy-id -i postgres@192.168.1.102
ssh-copy-id -i postgres@192.168.1.100
ssh-copy-id -i postgres@192.168.1.103

ssh 192.168.1.102 date
ssh 192.168.1.100 date
ssh 192.168.1.103 date

 

3.机器C:192.168.1.103上操作
su - postgres
ssh-keygen -t rsa
ssh-copy-id -i postgres@192.168.1.103
ssh-copy-id -i postgres@192.168.1.102
ssh-copy-id -i postgres@192.168.1.100

ssh 192.168.1.103 date
ssh 192.168.1.102 date
ssh 192.168.1.100 date

 

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