生成公钥私钥
ssh-keygen -t rsa
一路回车即可
将公钥发送给需要免密的机群
# 格式:ssh-copy-id -i ~/.ssh/id_rsa.pub 用户名@机群地址
ssh-copy-id -i ~/.ssh/id_rsa.pub hadoop@192.168.0.1
ssh-keygen -t rsa
一路回车即可
# 格式:ssh-copy-id -i ~/.ssh/id_rsa.pub 用户名@机群地址
ssh-copy-id -i ~/.ssh/id_rsa.pub hadoop@192.168.0.1