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authorEric Dumazet <eric.dumazet@gmail.com>2011-08-30 03:21:44 +0000
committerDavid S. Miller <davem@davemloft.net>2011-09-15 14:49:43 -0400
commit946cedccbd7387488d2cee5da92cdfeb28d2e670 (patch)
treefbb0d9c8dc11d6efee64e2a077a4951831932058 /drivers/Kconfig
parent27e95a8c670e0c587990ec5b9a87a7ea17873d28 (diff)
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tcp: Change possible SYN flooding messages
"Possible SYN flooding on port xxxx " messages can fill logs on servers. Change logic to log the message only once per listener, and add two new SNMP counters to track : TCPReqQFullDoCookies : number of times a SYNCOOKIE was replied to client TCPReqQFullDrop : number of times a SYN request was dropped because syncookies were not enabled. Based on a prior patch from Tom Herbert, and suggestions from David. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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