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kernel: possible SYN flooding on port 80. Sending cookies.

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Hey,

our cluster (LM 3600) shows these error message every minute
on peak time (high traffic services). afterwards it seems that the
loadmaster drops new requests. We dont think that a (D)DoS attack occurs. What can we do to solve this problem? Is there a possibilty to do some TCP Tuning stuff or something like that?

Best regards

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