ubuntu伪分布式如何配置 ubuntu安装hadoop伪分布模式

文章摘要：ubuntu伪分布式如何配置 ubuntu安装hadoop伪分布模式

ubuntu伪分布式的配置示例： 1.安装“ssh server”。 2.再安装“sun jdk6”，必须要j […]

ubuntu伪分布式的配置示例：

1.安装“ssh server”。

2.再安装“sun jdk6”，必须要java6及其以上版本。

3.生成SSH证书，配置SSH加密key，操作步骤：

www@ubuntu:~$ su – www

Password:

www@ubuntu:~$ ssh-keygen -t rsa -P ""

Generating public/private rsa key pair.

Enter file in which to save the key (/home/www/.ssh/id_rsa):

Your identification has been saved in /home/www/.ssh/id_rsa.

Your public key has been saved in /home/www/.ssh/id_rsa.pub.

The key fingerprint is:

a8:67:6f:bd:04:13:41:5f:a7:13:2d:84:e7:8a:8c:43 www@ubuntu

The key's randomart image is:

+–[ RSA 2048]—-+

| .o o+.. |

| o..o+. |

| . .oo. |

| E. . .. |

| ..oS. . |

| .o oo. |

| . o. .. |

| o …. |

| .. .. |

+—————–+

www@ubuntu:~$

www@ubuntu:~$ cat $HOME/.ssh/id_rsa.pub >> $HOME/.ssh/authorized_keys

www@ubuntu:~$

4.配置完成后，可以测试一下，例如：

www@ubuntu:~$ ssh localhost

The authenticity of host 'localhost (::1)' can't be established.

RSA key fingerprint is d7:87:25:47:ae:02:00:eb:1d:75:4f:bb:44:f9:36:26.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added 'localhost' (RSA) to the list of known hosts.

Linux ubuntu 2.6.32-22-generic #33-Ubuntu SMP Wed Apr 28 13:27:30 UTC 2010 i686 GNU/Linux

Ubuntu 10.04 LTS

[...snipp...]

www@ubuntu:~$