Enabling SSH on Ubuntu 20.04

Enabling SSH on Ubuntu

By default, when Ubuntu is first installed, remote access via SSH is not allowed. Enabling SSH on Ubuntu is fairly straightforward.

Perform the following steps as root or user with sudo privileges to install and enable SSH on your Ubuntu system:

1. Open the terminal with Ctrl+Alt+T and install the openssh-server package:

   sudo apt updatesudo apt install openssh-server

The output should tell you that the service is running and enabled to start on system boot:

● ssh.service - OpenBSD Secure Shell server
    Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled)
    Active: active (running) since Mon 2020-06-01 12:34:00 CEST; 9h ago
...

That’s it! You can now connect to your Ubuntu system via SSH from any remote machine. Linux and macOS systems have SSH clients installed by default. To connect from a Windows machine, use an SSH client such as PuTTY .

When prompted, enter your password and press Enter to continue with the installation.

Once the installation is complete, the SSH service will start automatically. You can verify that SSH is running by typing:

sudo systemctl status ssh

Press q to get back to the command line prompt.

Ubuntu ships with a firewall configuration tool called UFW. If the firewall is enabled on your system, make sure to open the SSH port:

sudo ufw allow ssh