You can install and enable OpenSSH on Ubuntu by following these steps:
Open a terminal window.
Run the following command to update the package list:
sudo apt-get update
Install OpenSSH by running the following command:
sudo apt-get install openssh-server
Once the installation is complete, OpenSSH should be automatically started. However, you can check its status by running:
sudo systemctl status ssh
This should show that OpenSSH is active and running.
If for some reason OpenSSH is not started, you can start it manually by running:
sudo systemctl start ssh
To enable OpenSSH to start automatically at boot, run:
sudo systemctl enable ssh
That’s it! OpenSSH should now be installed and enabled on your Ubuntu system.