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

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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.