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Essential System Administration Practices for Security and Performance

In the realm of system administration, safeguarding credentials is vital. Always use strong passwords and encrypt private keys. Ensure proper separation of environments by restricting development from touching production systems and limiting access to sensitive areas. Stay updated with system knowledge by monitoring performance closely and maintaining logs. Timely security updates and immediate patching are crucial. Regular backups ensure data recovery, and documentation of actions (excluding passwords) aids in transparency and efficiency. Automation can streamline tasks, making administration more manageable.

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Essential System Administration Practices for Security and Performance

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  1. System Administration Experience Sharing

  2. Secure your credentials • Use long/hard passwords • Encrypt your private keys

  3. Proper Separation • Never allow development to touch production systems • Limit access to production

  4. Know Your System • What’s running? • What’s installed? • Who’s using it?

  5. Security Updates • Subscribe to mailing lists • Patch immediately

  6. Monitor Performance • Is the system normal? • Identify bottlenecks

  7. Keep logs • Keep copies of logs in separate system • Postmortem

  8. Keep backups • If something dies, you have old data • If something new breaks, you can rollback

  9. Write Documents • Write about everything you did • But NOT passwords

  10. Automation • Write scripts for everyday tasks • Make your life easier

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