sudo apt-get install openssh-server Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: openssh-server : Depends: openssh-client (= 1:7.1p1-4) Depends: openssh-sftp-server but it is not going to be installed Recommends: ssh-import-id but it is not going to be installed E: Unable to correct problems, you have held broken packages.
sudo apt-get install openssh-client=1:7.1p1-4 Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libsnapd-glib1 snapd-login-service Use 'sudo apt autoremove' to remove them. Suggested packages: ssh-askpass libpam-ssh keychain monkeysphere The following packages will be DOWNGRADED: openssh-client 0 upgraded, 0 newly installed, 1 downgraded, 0 to remove and 1 not upgraded. Need to get 581 kB of archives. After this operation, 37.9 kB disk space will be freed. Do you want to continue? [Y/n] Y Get:1 http: Fetched 581 kB in 1s (521 kB/s) dpkg: warning: downgrading openssh-client from 1:7.2p2-4ubuntu2.1 to 1:7.1p1-4 (Reading database ... 172699 files and directories currently installed.) Preparing to unpack .../openssh-client_1%3a7.1p1-4_amd64.deb ... Unpacking openssh-client (1:7.1p1-4) over (1:7.2p2-4ubuntu2.1) ... Processing triggers for man-db (2.7.5-1) ... Setting up openssh-client (1:7.1p1-4) ... Installing new version of config file /etc/ssh/ssh_config ...
sudo apt-get install openssh-server
sudo service ssh start
sudo /etc/init.d/ssh start
如果没有出错就可以用ｓｓｈ的软件，输入虚拟机的 IP 地址进行链接。