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Feb 24th, 2018
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  1. sudo apt-get install ufw
  2. sudo ufw status
  3. sudo vi /etc/default/ufw
  4. sudo ufw disable
  5. sudo ufw enable
  6. sudo ufw default deny incoming
  7. sudo ufw default allow outgoing
  8. sudo ufw default deny outgoing
  9. sudo ufw allow ssh
  10. sudo ufw allow 22/tcp
  11. sudo ufw allow 3220/tcp
  12. sudo ufw delete allow ssh
  13. sudo ufw status numbered
  14. sudo ufw delete [number]
  15. sudo ufw status verbose
  16. sudo ufw reset
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