Secure Shell (SSH) is a fundamental tool for remote access to Linux systems. Here’s a concise guide on how to enable SSH on popular distributions:

1. Ubuntu:

On Ubuntu systems, initiate the SSH service with:

sudo systemctl start ssh

2. Arch Linux:

For Arch Linux, execute:

sudo systemctl start sshd

3. Raspberry Pi:

On Raspberry Pi, enable and start the SSH service:

sudo systemctl enable ssh
sudo systemctl start ssh

4. Fedora:

For Fedora, install the OpenSSH server and start the service:

sudo dnf install openssh-server
sudo systemctl start sshd

5. Red Hat:

On Red Hat systems, install OpenSSH server and start the service:

sudo yum install openssh-server
sudo systemctl start sshd

Ensure that the SSH server is configured to start at boot if required:

sudo systemctl enable sshd

Conclusion:

Enabling SSH on various Linux distributions follows a similar pattern, involving the initiation of the SSH service. Adjustments may be necessary based on the package manager and service management system used by each distribution. Always consider security best practices, such as configuring firewalls and using key-based authentication, to enhance the safety of remote connections.