Translations:Security considerations when running a VM/3/en

Keep the operating system secured

• Apply security updates on a regular basis (see updating your VM).
• Avoid using packages from unknown sources.
• Use a recent image; for example, don't use Ubuntu 14.04 when Ubuntu 18.04 is available.
• Use SSH key authentication instead of passwords. Cloud instances use SSH key authentication by default, and enabling password-based authentication is significantly less secure.
• Install fail2ban to block brute-force attacks.