day02 秘钥生成,免密访问命令

小程序：扫一扫查出行
【扫一扫了解最新限行尾号】
复制小程序

hadoop免密登陆:

生成秘钥:

ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa

cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

cat ~/id_dsa.pub >> ~/.ssh/authorized_keys

scp id_dsa.pub root@192.168.80.102:~

/etc/hosts，主机名和IP配置文件: vi /etc/hosts回车,切换到编辑模式'i',手动添加

127.0.0.1 node1 localhost

192.168.80.102 node2

192.168.80.103 node3

192.168.80.104 node4

::1 localhost6.localdomain6 localhost6

来自为知笔记(Wiz)