Question

我按照以下步骤设置ssh以便在单个节点中运行hadoop，但是，一些如何运行sudo apt-get install openssh-server给我一个下面的异常跟踪，可以解释一下此？

hduser@ubuntu:~$ sudo apt-get install openssh-server
[sudo] password for hduser: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done

包openssh-server不可用，但由另一个包引用。这可能意味着包裹丢失，已经过时或者只能从其他来源获得

E: Package 'openssh-server' has no installation candidate

尝试了解决方案：

1＃更新并安装，没有运气

sudo apt-get update
sudo apt-get install openssh-server

2＃ssh，这不是解决这个问题的方法，但仅供参考，

ssh给出了以下信息，

hduser@ubuntu:~$ which info
/usr/bin/info

而，

sshd没有提供路径，

hduser@ubuntu:~$ which sshd
hduser@ubuntu:~$

3＃fyi，

hduser@ubuntu:~$ ssh localhost
ssh: connect to host localhost port 22: Connection refused
hduser@ubuntu:~$

hduser@ubuntu:~$ ssh -vvv localhost
OpenSSH_5.9p1 Debian-5ubuntu1.1, OpenSSL 1.0.1 14 Mar 2012
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to localhost [127.0.0.1] port 22.
debug1: connect to address 127.0.0.1 port 22: Connection refused
ssh: connect to host localhost port 22: Connection refused

Answer 1

您可以在终端上尝试以下命令来设置ssh。

sudo apt-get install ssh

Ubuntu 12.0.04中的单节点Hadoop设置

1 个答案: