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EZZ4350I z/OS Communications Server: IP Messages Volume 4 (EZZ, SNM) SC27-3657-01 |
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EZZ4350I AN EXCESSIVE NUMBER OF HALF-OPEN CONNECTIONS ARE QUEUED FOR
LISTENING PORT: listen port ExplanationAn excessive number of half-open connections have been queued for the specified listening port. Many half-open connection are created when connection requests are received from a remote host but that remote host does not acknowledge the connection acknowledgments sent by TCPIP in a timely fashion. It is possible that this condition is caused by a denial of service attack on that port. listen port is the Listening Port Number. System actionTCP/IP will automatically implement a connection acceptance algorithm to minimize the impact of these incomplete connection requests. Operator responseContact the system programmer. System programmer responseContact your security administrator about this possible denial of service attack. ModuleEZBTCRDE |
Copyright IBM Corporation 1990, 2014
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