Ubuntu 为hadoop设置无密码ssh

我正试图在ubuntu上设置一个本地的、无密码的ssh来与hadoop一起使用，这一过程中的每一步都在与我斗争。最初我可以运行start-dfs.sh，但我意识到我运行的是root，你不应该这样做（所以我理解）

我一直在使用这里的说明：

但大多数网站似乎都有相同的三个步骤：

  $ ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
  $ cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
  $ chmod 0600 ~/.ssh/authorized_keys

我甚至没有收到一个错误…当我尝试运行

ssh localhost

时，我得到一个密码提示，我输入的任何内容都不能消除它。老实说，我甚至不介意为ssh输入密码，只要hdfs的东西可以工作

我的sshd_config文件在搜索解决方案时发生了很大变化，所以我在下面上传了它，以防出现问题。我不知道还能提供什么，但如果有人需要日志或输出，我很乐意提供。提前谢谢

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请参考下面的URL，其中包含逐步可视化

希望这有帮助

范例

设置环境

SSH客户端：192.168.0.12（Fedora21）

SSH远程主机：192.168.0.11（CentOS 7）

步骤1：在–（192.168.0.12）上创建身份验证SSH Kegen密钥

步骤2：在–192.168.0.11上创建.ssh目录

   [tecmint@tecmint ~]$ ssh sheena@192.168.0.11 mkdir -p .ssh
   The authenticity of host '192.168.0.11 (192.168.0.11)' can't be established.
   RSA key fingerprint is 45:0e:28:11:d6:81:62:16:04:3f:db:38:02:la:22:4e.
   Are you sure you want to continue connecting (yes/no)? yes
   Warning: Permanently added '192.168.0.11' (ECDSA) to the list of known hosts.
   sheena@192.168.0.11's password: [Enter Your Password Here]

   [tecmint@tecmint ~]$ cat .ssh/id_rsa.pub | ssh sheena@192.168.0.11 'cat >> .ssh/authorized_keys'
   sheena@192.168.1.2's password: [Enter Your Password Here]

   [tecmint@tecmint ~]$ ssh sheena@192.168.0.11 "chmod 700 .ssh; chmod 640 .ssh/authorized_keys"
   sheena@192.168.0.11's password: [Enter Your Password Here]

步骤3：将生成的公钥上载到–192.168.0.11

   [tecmint@tecmint ~]$ ssh sheena@192.168.0.11 mkdir -p .ssh
   The authenticity of host '192.168.0.11 (192.168.0.11)' can't be established.
   RSA key fingerprint is 45:0e:28:11:d6:81:62:16:04:3f:db:38:02:la:22:4e.
   Are you sure you want to continue connecting (yes/no)? yes
   Warning: Permanently added '192.168.0.11' (ECDSA) to the list of known hosts.
   sheena@192.168.0.11's password: [Enter Your Password Here]

   [tecmint@tecmint ~]$ cat .ssh/id_rsa.pub | ssh sheena@192.168.0.11 'cat >> .ssh/authorized_keys'
   sheena@192.168.1.2's password: [Enter Your Password Here]

   [tecmint@tecmint ~]$ ssh sheena@192.168.0.11 "chmod 700 .ssh; chmod 640 .ssh/authorized_keys"
   sheena@192.168.0.11's password: [Enter Your Password Here]

步骤4：在–192.168.0.11上设置权限

   [tecmint@tecmint ~]$ ssh sheena@192.168.0.11 mkdir -p .ssh
   The authenticity of host '192.168.0.11 (192.168.0.11)' can't be established.
   RSA key fingerprint is 45:0e:28:11:d6:81:62:16:04:3f:db:38:02:la:22:4e.
   Are you sure you want to continue connecting (yes/no)? yes
   Warning: Permanently added '192.168.0.11' (ECDSA) to the list of known hosts.
   sheena@192.168.0.11's password: [Enter Your Password Here]

   [tecmint@tecmint ~]$ cat .ssh/id_rsa.pub | ssh sheena@192.168.0.11 'cat >> .ssh/authorized_keys'
   sheena@192.168.1.2's password: [Enter Your Password Here]

   [tecmint@tecmint ~]$ ssh sheena@192.168.0.11 "chmod 700 .ssh; chmod 640 .ssh/authorized_keys"
   sheena@192.168.0.11's password: [Enter Your Password Here]

步骤5：不使用密码从192.168.0.12登录到192.168.0.11服务器

   [tecmint@tecmint ~]$ ssh sheena@192.168.0.11

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发布调试日志，查看服务器日志，打开服务器上的调试日志级别。问题中的信息不够，谢谢你的回复。我已收集日志并将其发布到：密钥被拒绝。服务器调试日志将告诉您更多信息。虽然没有服务器，但这都是在本地完成的。然后您将在本地运行ssh服务器…虽然此链接可能会回答问题，但最好在此处包含答案的基本部分，并提供链接供参考。如果链接页面发生更改，仅链接的答案可能无效。-@约翰穆塔菲斯做了必要的改变！！！。。。谢谢你的建议，我在发帖的时候会一直记住你的建议！！！。。。