Hadoop集群建立三：三台虚拟机信任互联通信

Hadoop集群建立三：三台虚拟机信任互联通信

生成密钥私钥

1、su hadoop

2、（在Hadoop01上）ssh-keygen -t rsa    三回车

3、查看   cd /home/hadoop/.ssh

4、在hadoop02与Hadoop03进行步骤1-3

5.（在hadoop02的hadoop）touch authorized_keys

 6、（在hadoop01)

scp id_rsa.pub hadoop@192.168.20.112:/home/hadoop/.ssh/id_rsa.pub1

7、（在hadoop03）

scp id_rsa.pub hadoop@192.168.20.112:/home/hadoop/.ssh/id_rsa.pub3

 8、（在hadoop02)

cat id_rsa.pub*>authorized_keys

9、（在hadoop02)

scp authorized_keys hadoop@192.168.20.111:/home/hadoop/.ssh/

scp authorized_keys hadoop@192.168.20.113:/home/hadoop/.ssh/

10.(三台）

su

vi /etc/selinux/config

 

 11（三台root）

service iptables stop

12、（3台）

su hadoop

chmod 700 /home/hadoop/.ssh

chmod 600 /home/hadoop/.ssh/authorized_keys

13.测试是否成功

ssh 192.168.20.113

ifconfig