Setup SSH on Ubuntu: Step-by-Step Guide

To set up a SSH connection, you can follow these steps:

1. Install the OpenSSH server by running the following command in the terminal:

sudo apt install openssh-server

1. Setting up an SSH server: You can customize the settings of the SSH server by editing the configuration file located at /etc/ssh/sshd_config. You can change the port number, allowed login users, authentication methods used, etc., as needed.
2. Start the SSH server: Run the following command in the terminal to start the SSH server:

sudo systemctl start ssh

1. Enable SSH server to start up during system boot by running the following command:

sudo systemctl enable ssh

1. Uncomplicated Firewall

sudo ufw allow ssh

1. Test Connection: Utilize SSH client tools such as OpenSSH client or PuTTY to test connecting to the SSH server on the Ubuntu host from another computer. The connection command is:

ssh username@host

The username refers to the username of the Ubuntu host, and the host represents the IP address or hostname of the Ubuntu host.

By following the above steps, you can successfully configure an SSH connection to an Ubuntu host.