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That is to say, a total of false syn messages will occupy the TCP preparation queue for 63s, while the semi-connected queue defaults to 1024, which is different by system default and can be viewed by cat/proc/sys/net/ipv4/tcp_max_syn_backlog c. That is to say, sending 200 fake syn packets per second without any protection is enough to burst the semi-connection queue, thus preventing the real connection from being established and responding to normal requests. The end result is that the server has no time to ignore the normal connection request-denial of service.Public String getSubject ();When do we use modular mode?鸿亟。Gu Xixi was stunned at first and immediately knocked on the system wizard: "What's going on?" "Sorry, player." The system wizard did not pretend to be dead: "There is no imperial examination plug-in installed at this checkpoint." "Let...她这次回京后。