How to configure SSH access on Ubuntu?

@monroe.bahringer 

To configure SSH access on Ubuntu, you can follow these steps:

1. Install the SSH server: Open the terminal and run the following command:

1
2

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

1. Check the status of the SSH service:

1

sudo systemctl status ssh

This command should show you whether the SSH server is running or not.

1. Configure SSH access: Edit the SSH configuration file using your favorite text editor (nano, vim, etc.)

1

sudo nano /etc/ssh/sshd_config

Make the following changes:

• Change the port number (optional) to a different port than the default 22 for security reasons.
• Set PermitRootLogin to no to disable SSH access for the root user.
• Set PasswordAuthentication to no to disable password-based authentication and use only SSH keys for authentication.

Save the changes and close the file.

1. Restart the SSH service:

1

sudo systemctl restart ssh

1. Configure firewall rules: If you have a firewall enabled on your Ubuntu server, make sure to open the SSH port (default 22 or the one you set in step 3) to allow incoming connections:

1

sudo ufw allow ssh

That's it! You should now be able to connect to your Ubuntu server using SSH.