openssh-server是依赖于openssh-clienr的,那ubuntu不是自带了openssh-client吗?原因是自带的openssh-clien与所要安装的openssh-server所依赖的版本不同,这里所依赖的版本是1:6.6p1-2ubuntu1sudo apt-get install openssh-client=1:6.6p1-2ubuntu1sudo apt-get install openssh-server