Warning: the ECDSA host key for 'master' differs from the key for the IP address '192.168.0.108'
解决:
主机执行:
ssh-keygen -R 192.168.0.108
至于和slave0X的无密码连接 顺便写一下
- 在master上 cd /home/hadoop/.ssh 执行ssh-keygen 点两下回车最后生成
修改文件权限 chmod 775 /home/hadoop , chmod 775 /home/hadoop/.ssh ,chmod 644 /home/hadoop/.ssh.id_rsa.pub /home/hadoop/.ssh/authorized_keys
,chmod 600 id_rsa
----拷贝文件到salvexx
scp /home/hadoop/.ssh/authorized_keys hadoop@slave01:/home/hadoop/.ssh/
then
ssh slave01 第一次会提示输入密码 以后就不会了