Managing a server on a robust platform like ava.hosting often requires administrative access, but Ubuntu disables root login via SSH by default for security. In scenarios where root access is essential—such as deploying critical updates or configuring system settings—enabling root SSH login can streamline your workflow. This guide walks you through securely enabling root login on an ava.hosting Ubuntu server, balancing convenience with safety to keep your VPS or shared hosting environment secure.

Step 1: Switch to Root User

Before enabling root login, ensure that you have root access. You can switch to the root user with:

sudo -i

If you haven’t set a root password yet, you can create one using:

sudo passwd root

Enter and confirm the new root password.

Step 2: Edit the SSH Configuration File

To allow root login via SSH, you need to modify the SSH configuration file.

  1. Open the SSH configuration file in a text editor:
    sudo nano /etc/ssh/sshd_config
  2. Locate the following line:
    PermitRootLogin prohibit-password
  3. Change it to:
    PermitRootLogin yes
  4. Save the file by pressing CTRL + X, then Y, and Enter.

Step 3: Restart the SSH Service

Apply the changes by restarting the SSH service:

sudo systemctl restart ssh

Step 4: Allow SSH Root Access in Firewall (If Applicable)

If you have UFW (Uncomplicated Firewall) enabled, allow SSH traffic:

sudo ufw allow ssh
sudo ufw reload

Step 5: Test Root Login via SSH

Now, try logging in as root from another system using:

ssh root@your-server-ip

Enter the root password when prompted.

Step 6: Secure Root Login (Optional but Recommended)

For security reasons, consider restricting root login by allowing only specific IPs. Edit the SSH configuration file again:

sudo nano /etc/ssh/sshd_config

Add the following line:

AllowUsers root@your-trusted-ip

Save the file and restart SSH:

sudo systemctl restart ssh

Conclusion

Enabling root SSH login on an Ubuntu server hosted by ava.hosting simplifies administrative tasks, but it must be done with care. By following these steps, you can securely enable root access while leveraging ava.hosting’s reliable infrastructure. For example, you might enable root login to install a software package like nginx directly or troubleshoot a critical service outage. To minimize risks, use SSH key authentication and restrict access to trusted IPs. With these precautions, you can manage your ava.hosting server confidently, ensuring both efficiency and security.