Install docker on Ubuntu.

Install docker on Ubuntu.

Solution: run the uname -- m command to install Ubuntu 14.04 or later on the x86 architecture.

2. putty cannot connect to the VM...

Solution: 1. Make sure that you can ping a remote Ubuntu or virtual machine. 2. If you still cannot log on, most of the reasons are that you have not enabled the ssh-server service. The final success method is as follows: sudo apt-get install openssh-server

Openssh-client is installed by default in Ubuntu, so it is not installed here. If your system is not installed, use apt-get to install it. Then confirm whether sshserver has started: ps-e | grep ssh

If only ssh-agent is available, the ssh-server has not been started./etc/init. d/ssh start is required. If you see sshd, the ssh-server has been started. The ssh-server configuration file is located in/etc/ssh/sshd_config. Here, you can define the SSH service port, which is 22 by default. You can define other port numbers, such as 222. Then restart the SSH service: sudo/etc/init. d/ssh resart