ssh配置多台机器连接不需要密码

A机:

#ssh-keygen
#ssh-keygen -t rsa
# ssh [email protected] "mkdir .ssh;chmod 0700 .ssh" (需要输入密码)

# scp ~/.ssh/id_rsa.pub [email protected]:.ssh/id_rsa.pub (需要输入密码)

在B上的命令:

# touch /root/.ssh/authorized_keys (如果已经存在这个文件, 跳过这条)

# cat /root/.ssh/id_rsa.pub >> /root/.ssh/authorized_keys (将id_rsa.pub的内容追加到 authorized_keys2 中)