Best practices in firewall management

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  1. 1. Best Practices in Firewall Management - Sabu Thaliyath
  2. 2. Introduction to Firewall In the front of perimeter-level defence Works mostly on ports and IP addresses
  3. 3. Be Specific Default policy must be Deny All Be specific in firewall rules i.e Open only the port you need open Allow only the IPs that you need to give access to
  4. 4. Access Control Keep the responsibility/authority to change firewall with only 1 or 2 admins
  5. 5. Have a change request policy How the requests would be received ? Approvals required
  6. 6. Add description Every rule must have a description
  7. 7. Expiry date Keep an expiry date for user requested rules Remind the user when expiry date is nearing
  8. 8. Backup Take periodic backups of your firewall
  9. 9. Periodic Review Clean up expired rules Remove redundant or duplicate rules
  10. 10. Manage from central location Cloud based management would help
  11. 11. Compliment firewall Compliment the firewall with other security products Intrusion Prevention System, Endpoint Security
  12. 12. Thank You 12