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.
卡雯无法对旧情释然，屡次要阿武去见有负于她的旧男友，否则拒绝行动，阿武于无奈之下听命，却在了解事实真相的过程中慢慢爱上了卡雯，然而任务必须进行，阿武开始犹豫是否再把卡雯替下来自己去杀人。
朴珍荣剧中饰演柔美（金高银饰）的男朋友刘巴比一角，内在外在都很完美，是个完美男人。
Almost all cellular phones must support multi-frequency and multi-radio. The spectrum allocation for global wireless communications has been redefined or redefined by relevant authorities. From a historical point of view, spectrum allocation has always been dominated by various countries, so it is not consistent in the world, because they are usually controlled by local governments. Unfortunately, the adjustment of spectrum is driven by the economies of scale of the industry, not by foresight in the field or cooperation between relevant institutions around the world. Without spectrum comparison, it is difficult to realize equipment standardization. As the wireless communication industry continues to allocate spectrum, it is foreseeable that different frequency bands will still follow localization requirements in the future instead of being optimized for global needs.
NHK連続テレビ小説第98作『半分、青い。』
费瑞·博曼，世界最大的迷幻药毒枭之一，原本在位于荷兰和比利时边境的郊区豪宅中享受着美满生活。但当两名卧底探员来到他的领地，试图渗透到他的生活并切断他的毒品网络的时候，事情发生了改变。
Due to the large number of test data, the landlord only selects a rocket minimum value (Figure 1), a poison arrow minimum value (Figure 2) and a poison arrow median value (Figure 3) for explanation. Most of the rocket damage tested by the landlord was in the early 15W 's, while most of the poison arrow damage was about 14W' s. 15/14-1 = 7.14%. At this addition (30% +40% +100% +20% * 2) = 210%. 210% * 7.14% is about 15%. This is equivalent to flame being born 15% higher than virulence. Since it is impossible to know how much or not this ratio fluctuates with skills, the accurate value cannot be estimated. For the bow, the final poison damage is 230% (20% more for the auxiliary weapon), so even if it does not fluctuate with the skill, it will get a highly toxic damage entry slightly higher than 15%. The value of 15% can be used as a reference.
这是霸绝天下的一枪。
行动敏捷、反应快速的归于斥候队……指挥使一一答应下来，仔细挑选。
替白虎将军和宁静郡主赐婚，造成几家困扰。
传媒系超帅男子Kirun被女子Sung穷追不舍，直到某天Sung被三轮车撞晕，导致跟死神有个了约定，并被赋予某种神力。但是由于某种原因，Sung被死神送回人间后，每次跟Kirun有肢体触碰的时候都会神情恍惚，无法放肆亲密的此种魔咒，Sung将情何以堪！
CBS刚一口气续订3季度《生活大爆炸》之后，又大手笔地续订18部剧集：《NCIS》《NCIS: Los Angeles》《犯罪心理》《疑犯追踪》《夏威夷特警》《警察世家》《CSI》《傲骨贤妻》《基本演绎法》《破产女孩》《米勒一家》《好汉两个半》《肥肥与胖胖》《Mom》各续订一季度
自幼一起长大的四个男孩——天乐、谭少宇、雷磊、李桃宝均已年满二十六岁，谈婚论嫁迫在眉睫。李桃宝最终抛开家庭束缚，拒绝了相亲对象薛晶晶，选择了青梅竹马的哑女夏丹。无房无车的雷磊本来要帮李桃宝整治一下薛晶晶，结果两人陷入真爱。富家女梅兰妮为了要挽救父亲的生意，有意接近富二代乐天，结果没想到乐天早就和富豪爸爸断绝了关系，是个穷光蛋，然而梅兰妮和乐天已经深深的爱上了对方，无法自拔。富家少爷谭少宇八年前和初恋女友伊冉相爱，却被家族狠狠拆散。伊冉偷偷生下了女儿伊恋，并慌称是自己的妹妹。谭少宇从美国留学回来，偶然遇见了伊冉，产生了不小的误会，而谭少宇被查出已经癌症晚期，两个人最终重归于好，享受最后的幸福。
Collected!
多年前江湖祸乱，一代大侠南刀李徵（胡兵 饰）奉旨为匪，从此便有了四十八寨。后李徵病逝，江湖名门也相继落败。李徵的女儿李瑾容（车晓 饰）接任大当家，与周以棠成婚。周家有女初成长，周翡（赵丽颖 饰）所生的朝代却是一个江湖没落的时候，前辈们的光辉与意气风发在南刀李徵逝去后逐渐都销声匿迹了。周翡十三岁那年离家出走，差点命丧洗墨江，被端王谢允（王一博 饰）救下，冥冥之中结下良缘。三年后，两位头角峥嵘的少年再次在霍家堡相遇，引出了多年前隐匿江湖的各类宗师高手。同时遭到曹贼手下北斗七位高手的追杀，令两位少年陷入了一场暗潮汹涌的阴谋。周翡以“破雪刀”之招数名震江湖，以浩然之姿，为这江湖名册再添上了浓墨重彩的一笔。
In some time series competitions, I will set aside some data as verification sets.
张杨大惊，喃喃道：怪不得。
