TLD Survey:Risks

• UDP Response Truncation, Conclusion

  • Do whatever you must in order to prevent UDP response truncation

    • You may not have problems now, but you will
    • If you don’t fix the problems now, it will be harder to fix the problems in the future
    • If you are forced to fix the problems in the future, the resulting cost is likely to be higher
    • With advent of “anycast” DNS services, need to avoid using TCP if possible (~0.01%error rate)

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