1.按以下顺序执行安装
sudo dpkg -i openssh-client_6.6p1-2ubuntu1_amd64.deb
sudo dpkg -i openssh-sftp-server_6.6p1-2ubuntu1_amd64.deb
sudo dpkg -i libck-connector0_0.4.5-3.1ubuntu2_amd64.deb
sudo dpkg -i openssh-server_6.6p1-2ubuntu1_amd64.deb
sudo dpkg -i ssh_