The below guide will provide you with information on how to enable ssh on Ubuntu 18.04 Linux. SSH stands for secure shell which allows encrypted remote login connections between client and server over insecure network.
Operating System and Software Versions
Operating System: - Ubuntu 18.04 Bionic Beaver
Software: - OpenSSH 7.5 or higher
Privileged access to your Ubuntu System as root or via sudo command is required.
# - requires given linux commands to be executed with root privileges either directly as a root user or by use of sudo command
$ - requires given linux commands to be executed as a regular non-privileged user