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"If you call the police and file a case, you can recover as much as you can."SYN attack is a kind of DOS attack. It takes advantage of TCP protocol defects and consumes CPU and memory resources by sending a large number of semi-connection requests. SYN attacks can not only affect hosts, but also harm network systems such as routers and firewalls. In fact, SYN attacks can be implemented as long as these systems turn on TCP services no matter what systems are targeted. As can be seen from the above figure, the server receives the connection request (syn=j), adds this information to the unconnected queue, and sends the request packet to the client (syn=k, ack=j+1), then enters the SYN_RECV state. When the server does not receive an acknowledgement packet from the client, it retransmits the request packet and does not delete this entry from the non-connection queue until the timeout. With IP spoofing, SYN attacks can achieve good results, Typically, clients forge a large number of non-existent IP addresses in a short period of time, SYN packets are continuously sent to the server, and the server replies to the confirmation packets and waits for the confirmation of the customer. Since the source address does not exist, the server needs to continuously resend until it timeout. These forged SYN packets will occupy the unconnected queue for a long time, normal SYN requests will be discarded, the target system will run slowly, and in serious cases, the network will be blocked or even the system will be paralyzed.武林“四大天王”之一的秦坚为独霸武林，勾结匿迹江湖多年的“血蛾帮”教主魏仁君杀害了名镇江湖的白啸天夫妇，并谋夺了白家藏宝图半张。为获得另半张藏宝图，秦坚一伙费了十五年工夫仍未得逞。而当年死里逃生的白啸天之女白秋霜为报灭门之仇，练得一身绝佳武功，且倚名剑“凤回剑”踏遍江湖，苦觅仇人。后得江湖豪侠司马长风偕与“凤回剑”齐名的“龙阳刀”联手相帮，更得江湖怪侠古木天、天凤女鼎力扶正灭邪，终于将杀害白啸天夫妇的凶手“血蛾帮”教皇秦坚和教主魏仁君至于死地，为武林除了一大祸害。漂亮的售楼小姐马可打车时把售楼合同书和十万元现金丢在了车里，出租司机李伟大拾金不昧，马可非常感动。在老妈刘海棠的鼓励和帮助下，李伟大披荆斩棘终于娶到马可。婚后婆媳俩相互较劲，李伟大靠自己的智慧在两个女人之间做着平衡。同时，李伟大的妹妹伟茹的故事也在上演。身为记者的伟茹因采访一起“集资诈骗案”结识了周磊，两人产生了感情，走到了一起。李家的日子越过越红火，婆媳相处日渐和睦，马可怀孕了，李伟茹举行了婚礼。刘海棠找了老伴，分手那一刻，马可由衷地喊了声：妈，您要常回来。婆媳俩难舍难离，紧紧地拥抱在一起。看着冒热气的鱼头炖豆腐、雪里蕻烧鲤鱼、糖醋鲤鱼，清炖泥鳅、青蒜爆炒鳝片……一齐吞口水——好饿啊。但是对自己的许诺更早。