Bind max socket/query per IP

[Ict Security]

Hi guys,

I am experiencing a very strange problem.

Under heavy load, Bind becomes extremely load above a certain number of Qps
but, if i query an alias IP address (where normally queries don't arrive),
Bind answers immediately.

I was wondering if there is a kind of limitation on a single IP address due
to socket or something elss.

I have increased and tuned kernel parameters, but problem still persist.

Thank you, cheers!
FC
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