我在两台centos上部署ssh，实现不用输入密码的认证，功能总不能实现

djw_poison

我从网上查了很多资料，以前在ubuntu上配置成功过，现在用centos就怎么也不成功， 感觉文件都copy正确了，但 ssh mapreduce2 时仍然找我要密码？？？

两台机器
产生authorized_keys  id_dsa  id_dsa.pub  known_hosts的机器：

[hadoop@localhost .ssh]$ cat authorized_keys
ssh-dss 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 hadoop@localhost.localdomain


使用scp authorized_keys mapreduce2:/home/hadoop/.ssh/ 进行认证文件的拷贝
[hadoop@localhost .ssh]$ scp authorized_keys mapreduce2:/home/hadoop/.ssh/
The authenticity of host 'mapreduce2 (192.168.13.211)' can't be established.
RSA key fingerprint is 40:60:a4:58:83:95:b0:ec:c0:cc:8c:42:be:6d:f8:52.
Are you sure you want to continue connecting (yes/no)? hadoop
Please type 'yes' or 'no': yes
Warning: Permanently added 'mapreduce2,192.168.13.211' (RSA) to the list of known hosts.
hadoop@mapreduce2's password:
authorized_keys                                                     100%  618     0.6KB/s   00:00  



mapreduce2机器情况如下：
[hadoop@localhost .ssh]$ cat authorized_keys
ssh-dss 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 hadoop@localhost.localdomain


请高手给指点一下，谢谢！