Kernel Logs Warning Messages "TCP: Possible SYN flooding" (Doc ID 1551663.1)

Last updated on MAY 23, 2013

Applies to:

Linux OS - Version Oracle Linux 5.5 with Unbreakable Enterprise Kernel [2.6.32] to Oracle Linux 6.4 with Unbreakable Enterprise Kernel [2.6.39] [Release OL5U5 to OL6U4]
Linux x86
Linux x86-64

Symptoms

 Sometimes Linux kernel logs warning messages as followings:

 

Cause

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