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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-08-30 03:21:44 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-09-15 14:49:43 -0400 |
| commit | 946cedccbd7387488d2cee5da92cdfeb28d2e670 (patch) | |
| tree | fbb0d9c8dc11d6efee64e2a077a4951831932058 /tools | |
| parent | 27e95a8c670e0c587990ec5b9a87a7ea17873d28 (diff) | |
| download | blackbird-op-linux-946cedccbd7387488d2cee5da92cdfeb28d2e670.tar.gz blackbird-op-linux-946cedccbd7387488d2cee5da92cdfeb28d2e670.zip | |
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>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions
