Methods and systems for preventing socket flooding during...

Details Methods and systems for preventing socket flooding during... Methods and systems for preventing socket flooding during...

2005-06-07

2005-06-07

Najjar, Saleh (Department: 2157)

Electrical computers and digital processing systems: multicomput

Computer network managing

C709S224000, C709S226000, C709S227000, C709S229000, C709S231000, C713S152000

Reexamination Certificate

active

06904459

ABSTRACT:
A way of reducing the impact of denial of service attacks is presented. For each connection request received by a server, the server attempts to establish a connection to accommodate the corresponding request. For each connection request that the server cannot currently handle, the connection request is placed in a backlog queue for future handling. If one or more of the backlog queues have entries, connection sockets that have connections but no received request data are identified and disconnected. Such connection sockets would be highly suspect of being generated as a result of denial of service attacks. Upon disconnection, resources are freed for legitimate requests thereby improving server performance even during denial of service attacks.

REFERENCES:
patent: 5999965 (1999-12-01), Kelly
patent: 6427161 (2002-07-01), LiVecchi
patent: 6574662 (2003-06-01), Sugiyama et al.
patent: 6738814 (2004-05-01), Cox et al.
patent: 6751668 (2004-06-01), Lin et al.
patent: 2001/0029548 (2001-10-01), Srikantan et al.
patent: 2004/0181694 (2004-09-01), Cox et al.

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