dns QPS max and dhcp lease per second max problem

Julie Xu J.Xu at westernsydney.edu.au
Thu Jan 4 04:19:04 UTC 2018


I have checked the dhcp/dns load issue. And found there is some peak value much higher than avg. for example.
DNS avg 3000, peak 160000.
DHCP avg 500, peak 65000.

I believe the peak moment is some sort of attack?

Could I get a clue what thing can cause the peak dns/dhcp query? And anyway to stop the peak? Or protect the peak?

Any comments will be appreciated

Thanks in advance

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