kernel: Possible SYN flooding on port #. Sending cookies. - Red Hat Customer Portal

One of the following messages is logged: kernel: possible SYN flooding on port X. kernel: possible SYN flooding on port X. Sending cookies. kernel: Possible SYN flooding on port X. Check SNMP counters. kernel: Possible SYN flooding on port X. Sending cookies. Check SNMP counters. kernel: TCPv6: Pos…