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.
说着樱桃小口伸了过来，两唇相遇的那一刹那，尹旭一下子将绿萝揽入怀中，两人激烈地吻在一起。
The above machine is limited to recharging Manaka and cannot sell subway tickets or Manaka. It is still very convenient to recharge.
If recommendations cannot be made due to incomplete data or incomplete results, secondary MDT can be organized at an optional time, but such situations should be avoided as much as possible.
2010.07-借东西的小人阿莉埃蒂
范文轲心知肚明，笑着回答道：当然是汉国了，关中。
韩国推出的有关家庭，爱情的经典剧情片，展现了韩国的家庭故事
与男友分手后来到海边民宿治愈情伤的Sophie，卸载了所有社交软件，开始重启自己一团乱麻的生活，却因为意外险些溺水，恰巧被路过的Abi所救。Abi是一个一直自律生活的西餐厨师，还作为独立乐队的吉他手在舞台上大放异彩，事业处于上升期的她突然发现自己身患绝症，心灰意冷之下选择抛下一切恣意人生。两个内心迷茫的人因为疫情被迫共同生活在民宿，这场意外邂逅又会碰撞出怎样的火花呢？
网剧《你在我的右手边》是一部青春、励志、喜剧校园剧。该剧以青春为主线，主要讲述了单求胥（男一）与王元鹅（女一）的极品同桌的爱恨交织，矛盾纠结的校园故事。观众将会通过观剧形式，联想到自己的高中时代，怀念曾经历过的美好青春岁月。
《菜刀，又见菜刀》。菜刀网销售记录备案：第一天，卖出菜刀数：0把；第一周，卖出菜刀数：1把；第二周，卖出菜刀数：301把。买刀人：小马哥，郑浩南……
One problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.
两人不知说些什么，站在西厢屋角嘀咕半天。
8.1 Cardiovascular diseases are unqualified.
电视剧讲述了潘玉良一生的故事。她1921年考得官费赴法留学，先后进了里昂中法大学和国立美专，与徐悲鸿同学，1923年又进入巴黎国立美术学院。潘玉良的作品陈列于罗马美术展览会，曾获意大利政府美术奖金。1929年，潘玉良归国后，曾任上海美专及上海艺大西洋画系主任，后任中央大学艺术系教授。1937年旅居巴黎，曾任巴黎中国艺术会会长，多次参加法、英、德、日及瑞士等国画展。曾为张大千雕塑头像，又作王济远像等。潘女士为东方考入意大利罗马皇家画院之第一人。
刘宋元嘉年间，天下积弊积弱，侠女骊歌（李沁饰）不解监政刘义康（秦昊饰）暗中蛰伏之志，误以为其纵容奸佞，祸患朝堂，欲借太妃寿宴献舞之机将其刺杀，不料却沦为刘义康和奸佞陆远（戚跡饰）生死相夺的棋子。阴差阳错之间，骊歌成为沈家将门嫡女，并与刘义康联姻。 刘义康和骊歌民间相遇，共同调查陆远，不明身份的两人几经患难，情愫暗生，却囿于婚约只能忍痛惜别。大婚之夜，刺杀之时，四目相对，情仇难辨！陆远与太妃合谋治罪沈家，刘义康与骊歌化解误会，力破死局！ 边关秋犯，刘义康征战，陆远暗算，骊歌千里奔赴沙场力挽狂澜，助刘义康凯旋归朝。朝堂之内又遭到谢、王家族势力扑压，伉俪二人携手制敌，感情浴火弥坚，共同守护一片盛世昌荣。 山野烂漫，梨花盛开，爱人携手，共赏繁华……
负气离家的王俊凯乘着火车踏上旅途，遇到了两个旅伴，一个是向往诗与远方的文艺少年易烊千玺，一个是无所不知的超能少年王源。少年们决心前往神秘的萤火虫森林探险，突发事件却让他们被困森林，亲密相处让三人决心成为一辈子的朋友。可是一觉醒来，王源却不知所踪。其余二人失落回家之后，才发现……
Daonuea在高中时迷上了Kabkluen，并在大四最后一天坦白了自己的感受。然而，卡布卢恩温和地拒绝了他。现在，刚上大学的Daonuea发现他的一个室友正是他高中时的爱人Kabkleun。当你不再爱某人，但他们开始爱你时，会发生什么？
战事还要继续进行，先将这里的消息及时禀报越王才是。
我让人熬些驱寒的药汤，等他们游上来就喝一碗。
