ubuntu 安装 ssh

我的系统是Linux Ubuntu 14.04 LTS的。 
我想安装Hadoop，之前要安装ssh。 

1. 执行sudo apt-get install ssh，系统提示：Depends: openssh-server (>= 1:6.6p1-2ubuntu1) but it is not going to be installed。 
说依赖openssh-server。 

2. 那我就执行sudo apt-get install openssh-server。 
系统又提示：openssh-server : Depends: openssh-client (= 1:6.6p1-2ubuntu1) but 1:6.6p1-2ubuntu2 is to be installed。 
说依赖openssh-client (= 1:6.6p1-2ubuntu1)。 

3. 我再执行sudo apt-get install openssh-client。 
又提示：openssh-client is already the newest version. 
说openssh-client 已经是最新版本了。 
安装openssh-server非要openssh-client 1:6.6p1-2ubuntu1的，我机器上面已经安装了openssh-client 1:6.6p1-2ubuntu2，怎么办？

 

解决办法：

sudo apt-get install aptitude 
sudo aptitude install openssh-server