系統命令【二】ssh授信配置

1、服務器說明：

xxx.xxx.xxx.154

xxx.xxx.xxx.155

xxx.xxx.xxx.156

 

2、生成公鑰和私鑰

xxx.xxx.xxx.154執行：

ssh-keygen -t rsa
cd ~/.ssh
mv id_rsa.pub id_rsa_154.pub
scp id_rsa_154.pub [email protected]:/root/.ssh
scp id_rsa_154.pub [email protected]:/root/.ssh

 

xxx.xxx.xxx.155執行：

ssh-keygen -t rsa
cd ~/.ssh
mv id_rsa.pub id_rsa_155.pub
scp id_rsa_155.pub [email protected]:/root/.ssh
scp id_rsa_155.pub [email protected]:/root/.ssh

 

xxx.xxx.xxx.156執行：

ssh-keygen -t rsa
cd ~/.ssh
mv id_rsa.pub id_rsa_156.pub
scp id_rsa_156.pub [email protected]:/root/.ssh
scp id_rsa_156.pub [email protected]:/root/.ssh

 

3、授信：

在三臺設備上同樣執行如下操作：

chmod 777 authorized_keys

cat id_rsa_154.pub >> authorized_keys
echo "" >> authorized_keys
cat id_rsa_155.pub >> authorized_keys
echo "" >> authorized_keys
cat id_rsa_156.pub >> authorized_keys
echo "" >> authorized_keys

chmod 600 authorized_keys