Sometimes the Open SSH Server does not come enabled or installed by default on a clean installation. This short guide will show you how to get it one your machine.
Let's download the program.
sudo apt-get install openssh-server
Verify that it installed properly.
sudo service ssh status
If you want to modify any of the ports or settings in SSH, simply open the file and change what is needed.
sudo vim /etc/ssh/sshd_config
After changing the settings, restart the server.
sudo service ssh restart