国产AV在线播放

[Editor's Note] Under the relevant policies of the new college entrance examination, the burden reduction order and the recent "Opinions on Regulating the Development of off-campus Training Institutions", quality education has been increasingly recognized by the market and parents. Among them, the cultivation of children's thinking is also highly valued. However, while the whole quality education is still in its initial development, the cultivation of children's thinking itself is also facing many challenges.啊——啊啊——天启，还我温柔可爱的秦思雨。也亲眼看着司马二从一个新人，一步步走向辉煌，走上武侠界的巅峰。忽然，他瞪大了眼睛——只见张老太太嘴里吃着，手上捡起两块点心，想往袖子里塞。季木霖不悦地回了一句，然后踏着沉闷的步子离开了书房，留徐风自己在房内整理余物。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.