k.root-servers.net

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Presentation given by Daniel Karrenberg at various conferences in 2012

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k.root-servers.net

  1. 1. k.root-servers.netbyRIPE NCCDaniel KarrenbergChief Scientist, RIPE NCC
  2. 2. Who is talking: Daniel Karrenberg• 1980s: helped build Internet in Europe – GUUG, EUUG, EUnet, Ebone, IXes, RIPE, ...• 1990s: helped build RIPE NCC – 1st CEO: 1992-2000• 2000s: Chief Scientist & Public Service – Trustee of the Internet Society, IETF, ...• 2010s: Chief Scientist – Interests: Internet measurements, stability, trust & identity in the Internet, ...Daniel Karrenberg, 7 March 2012 2
  3. 3. What DNS Root Name Servers DoTell where are once everyDaniel Karrenberg, 7 March 2012 3
  4. 4. What DNS Root Name Servers DoDaniel Karrenberg, 7 March 2012 4
  5. 5. Attack Mitigation Diversity12 Professional Operators / 13 Independent Operations Daniel Karrenberg, 7 March 2012 5
  6. 6. DDoS Mitigation Over-provisioning: Not to scale !Daniel Karrenberg, 7 March 2012 6
  7. 7. DNS Root Name Server LocationsDaniel Karrenberg, 7 March 2012 7
  8. 8. DNS Root Name Server LocationsDaniel Karrenberg, 7 March 2012 8
  9. 9. Closest Root Server as seen by RIPE AtlasDaniel Karrenberg, 7 March 2012 9
  10. 10. Closest Root Server as seen by RIPE AtlasDaniel Karrenberg, 7 March 2012 10
  11. 11. k.root-servers.net: LocationsDaniel Karrenberg, 7 March 2012 11
  12. 12. k-root: Instance seen by RIPE AtlasDaniel Karrenberg, 7 March 2012 12
  13. 13. k-root: Instance seen by RIPE AtlasDaniel Karrenberg, 7 March 2012 13
  14. 14. k.root-servers.net: TLDs QueriedDaniel Karrenberg, 7 March 2012 14
  15. 15. k.root-servers.net: Query LoadDaniel Karrenberg, 7 March 2012 15
  16. 16. k.root-servers.net: Load DistributionDaniel Karrenberg, 7 March 2012 16
  17. 17. DDoS Mitigation Over-provisioning: Not to scale !Daniel Karrenberg, 7 March 2012 17
  18. 18. DDoS Mitigation• Cooperation with ISPsDaniel Karrenberg, 7 March 2012 18
  19. 19. DDoS Mitigation• Cooperation with ISPsDaniel Karrenberg, 7 March 2012 19
  20. 20. dnsmonDaniel Karrenberg, 7 March 2012 20
  21. 21. References• root-servers.org• k.root-servers.org• k.root-servers.org/visualk• atlas.ripe.net• dnsmon.ripe.net• www.isoc.org/briefings/019• www.isoc.org/briefings/020• labs.ripe.netDaniel Karrenberg, 7 March 2012 21
  22. 22. Questions?

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