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.
远古时代，天地本无界，万物为求永生之道，皆因善恶动心起念，道不同不相为谋，渐形成了仙道与魔道两大势力，自此光明与黑暗对立。仙道为维护天地纪律、匡扶浩然正气，避免受到魔道破坏仙境，派出五大神兽，青龙、白虎、朱雀、玄武、麒麟五大尊者将具有魔道心性的生灵全部驱离仙境。不甘心被驱逐的妖兽，推派黑龙王为首，带领魔界邪灵妖兽们迎战反抗，撞毁四大天柱，引洪水泛滥，从此天地分界，烈火延烧七天七夜、生灵涂炭、哀鸿遍野。仙界将炼石补天的五色晶石打造成五大神器，朱霞镜、白灵珠、青云剑、金电钵、黑雷杖分别交由五大神兽前去平息乱象，麒麟尊者不幸遭到黑龙王的挟持，魔道妖兽才能安然逃至天外魔境。青龙以救出麒麟为名，号召四大神兽带着神器围剿魔境，黑龙王出面迎战，反被神器所伤，遭四大神兽制伏拿下，黑龙王从此被禁锢在昆仑仙境的仙母洞牢，以“千年寒冰石”冰封住，这场仙魔纷争才告平息。五百年后，修蛇贞儿（白蛇前世）化身为一妙龄女子，聪敏慧诘，贞儿和昆仑仙境修行的桑树神穹桑（许仙前世）相恋多年，因难舍情爱，修行因此受阻，迟迟未能
Compared with standard, top-of-stack reuse can effectively reduce the consumption of resources by activity repeated creation, but this depends on the specific situation and cannot be generalized.
想想项羽的年纪，现在看起来完全不像是三十岁的人。
载淞之女永恩自幼与督军沈详之子其峻订婚。载淞与发妻郁芩失和，郁芩与唐济出走。其峻留学归来欲解除婚约，途中巧遇永恩，一见倾心。永恩受继母虐待投奔管家周全。她结识男子来福，两人相恋。来福系唐济长子庭轩的双胞胎兄弟，庭亮为了争夺财产，设计杀害庭轩，却误将来福当成庭轩杀害。永恩不知来福已死，错把庭轩当成来福，却发现他将自己视为陌路。永恩进入唐家探询究竟，庭轩不知不觉爱上了永恩。永恩知道庭轩不是来福后离开唐家。其峻一直默默守护她。庭亮揭穿庭轩并非唐济亲生，庭轩被赶出唐家，其生母也被庭亮杀害。忍无可忍的庭轩一心想复仇。他与宜岚结婚，想借助宋家财势夺回唐家财产。庭轩思念永恩，怎奈永恩与其峻共结连理。庭轩掳走永恩将其软禁，永恩誓死不从，其峻赶来相救。生死攸关之际，庭轩改过，成全了大家。
就在这时，微.博上突然出现一则发言。
李天洋和郑月两位年轻“小炮儿”在执行神秘任务时失败，惹怒老大闫老板，开始了亡命天涯的故事。在找寻货物的过程中，郑月偶遇发小并帮发小找回了失踪多时的男朋友。同时，郑月发现了货物的秘密并明白如果不逃离这个地方就会丧失性命。屋漏偏逢连夜雨，在郑月准备离开的时候，兄弟和发小的被闫老板抓，郑月不得不与闫老板正面冲突，随之而来的却是越来越多的麻烦。
梁子是凯星服装店的售货员，由于他待客热情，微笑服务，受到了商店同事和郭经理的好评，而他心里却一直梦想当一名电影演员。一天，卖油饼的晓晴姑娘告诉梁子，电影明星速成班正在招生，梁子不由喜出望外。考场上，梁子遇上了也来参加考试的幼儿园老师张玲玲。
大苞谷道：我爷爷过世两三年了，守孝也该期满了，我怕他们要回京去。
爷爷就算马上闭眼了，也没啥放不下的了，因为爷爷晓得你们都是有出息的，都能过得好。
3. Voluntary Service: At the moment, many young and middle-aged people in rural areas are working in the coastal areas of Guangdong. Most of the people who stay at home are old, weak, women and children. Naturally, they will encounter many difficulties in life and study. We will call on our volunteers to do what they can for these lonely, elderly and left-behind children and bring them some real help and convenience.
CBS正式宣布续订#反恐特警队# 第二季。
女主角的身份开始并没有交代出来，而是通过朝阳被追杀的曲折故事逐渐引出真面目，加上女主性感的嘴唇，机智的应对，强烈的神秘感一开头就吊足观众胃口。
《庭审专家 Bull》由Phil McGraw及Paul Attanasio编剧﹑Rodrigo Garcia负责执导，根据著名美国日间电视节目主持人兼人类研究专家Phil McGraw博士的真人真事改篇。Phil博士亦有提供法律咨询服务，在现实曾为奥普拉的「疯牛病言论 」作法律顾问。刚离开《海军犯罪调查处 NCIS》的Michael Weatherly饰演改编角色Jason Bull博士，他领导一间对陪审团进行分析，以制定辩护策略的公司Trial Sciences Inc.。他身材及智慧皆有，令到他很受异性吸引，不过他亦有十分冒犯人的直率性格。
一路上， 薛丁山 收服山贼窦一虎、大战 苏宝同 ，最终将薛仁贵和 李世民 从 锁阳城 救出。 李世民 班师回朝，留下薛氏父子继续平乱。 苏宝同 搬来救兵并派出手下大将樊洪前去挑战。
马丽姗，琬雯的表姐，孟向阳曾经恋人，潘大庆老婆。当初为了结婚卖
张家上下人等都忙得跟陀螺似的转，哪里找得着主事人。
