When it comes to secure connections between two computers, SSH (SSH = Secure Shell) is the drug of choice. Thus for example you can remotely control your home- or web-server by an encrypted connection via SSH. How to install the OpenSSH server (software) on Linux (Ubuntu) and establish and secure the connections, is what I want to show to you in the following series of articles.
As an example scenario, we assume that we have a Linux machine which acts as a server and two computers, one with Ubuntu Linux and one running Windows 8, which represent our clients.
OpenSSH server installation
The first step is to download the server software. The SSH client (for connecting the server with another PC/server for example) can be installed as well if needed.

sudo apt-get update
sudo apt-get install openssh-server openssh-client

After the installation of the OpenSSH server you may need to start the service manually. This can be […]