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.
来自月球的外来生物自带异能,他们经历漫长的进化及繁衍,不断适应地球环境,悄然融入人类社会,被称之为：月族。表演系学生佟小曼仅剩3个月寿命,却误打误撞与欧泽野缠绵一夜。欧泽野的到来打破了佟小曼平静的生活。在啼笑皆非的同居生活中,佟小曼对欧泽野心生好感,却发现他并非人类,而是月族。月族平时与常人无异,可每到月圆之夜便要经受诅咒变为恐怖的嗜血狂魔。欧泽野险些伤害佟小曼,引发了巨大的感情矛盾。但最终,佟小曼与欧泽野仍然坚信真爱至上。二人不顾一切,冲破世俗禁锢,扫平障碍,终究逆天改命,化作了世间一对平凡爱侣。
The use of weightlifting belts can provide additional protection and support to the lower back when these muscles fail. Moreover, as the weightlifting belt can reduce the pressure of heavy objects on the lower back, the workload of the lower front muscles is reduced, and the time for fatigue of the lower back muscles will be delayed, thus effectively preventing and delaying the premature occurrence of fatigue of the lower back muscles.
吴琳琳激动的都不知道该干什么了，好一会儿才反应过来，然后连忙打字道：下个月，我一定去看《唐伯虎点秋香》，带上我所有的朋友。
徐风退了一步，说：我能暖你手，但是我暖不了你心，所幸还是找别人吧。
Did the landlord see it in the novel? If it is met in the novel, it means that the characters in the novel live in such and such a city, a division of the characters' addresses (cities a, b, c...) but if it is about studying geography, it should be Shanghai!
李家是一个普通的传统家庭，老爷子一生追求堂堂正正、是一位退休在家的老车间主任，但他这一生的追求，如今面临的却是儿女无情无意的挑战。老妈更是一位敞敞亮亮，吃苦耐劳，为儿女付出一生的善良母亲。本来好端端的一个家，却被俩个‘不着调’的儿女弄得乌烟瘴气，矛盾重重，新的世界新事多，一大家新的难事儿、怪事儿就少不了，本来老了该歇歇了，应该享得儿女的呵呼，没想到一天到晚却更加手忙脚乱了，刚按倒葫芦又起了瓢。
事实上，这种寂寞在他记事的时候，就跟着他了。
We all know that computers have a certain security protection system. Through the security protection system, computers can detect certain abnormal viruses and give reminders and removals. The DDOS attacker achieves its goal by evading this protection system and carrying out a rejection attack on the computer, thus bringing the other computer into its own control.
可这所谓的口号，却并非正大光明。
中国奇书《推背图》是唐初李淳风与袁天罡合撰，预言历代变革之事，准确灵验。唐太宗翻看此书后，大为赞赏，重赏李淳风，袁天罡因妒忌李淳风夺其功，怀恨在心。太宗死后，两人更将《推背图》图、文分家，两家成为世仇。而《推背图》从此绝迹民间。数百年后，两家后人阴差阳错结成夫妇……
Model/Framework Architect: I have mentioned a lot of experiences in dealing with the existing framework/model. Great Xia at this stage, oh, no, is that the master can independently design and develop a new framework/algorithm to deal with the existing business scenarios or solve the problems left over from history that have not been solved. There is nothing more to say, worship!
犯罪心理研究小组隶属FBI，他们跨州行动，主要针对连环杀人案，从嫌疑人的犯罪心理和行为模式入手建立人物侧写，圈定罪犯的性别、年龄、职业特征、居住环境乃至成长经历，从而预测罪犯下一步行为，直至缉拿罪犯。他们的成员包括：高智商、强记忆力的少年天才斯拜瑟尔·瑞德博士（马修·格雷·古柏勒 Matthew Gray Gubler 饰）——负责数据和资料分析；外冷内热的硬汉阿伦·哈奇（托马斯·吉布森 Thomas Gibson 饰）——沟通能力极强，波多黎各小伙德里克·摩根（谢默·摩尔 Shemar Moore 饰）——强制性犯罪行为专家；打扮招摇的小胖妹佩妮洛普·格西娅（克里斯汀·范奈丝 Kirsten Vangsness 饰）——数据库专家，美女媒体联络员JJ（A·J·库克 A.J. Cook 饰）等，在老探员戴维·罗西（乔·曼特纳 Joe Mantegna 饰）带领下，飞往全美各地，展开一场场缉凶行动。
Based on the IDW Comic, Wynonna Earp follows Wyatt Earps great granddaughter as she battles demons and other creatures. With her unique abilities, and a posse of dysfunctional allies, she's the only thing that can bring the paranormal to justice.
老调剧，描写杨家将与奸贼潘洪斗争。
第二次世界大战中期,美军参战令希特勒一统世界的狂梦破碎。1942年1月20日一场秘密会议,全世界人类的生活就此改变.这场会议中的一份文件,隐藏了多少秘密,犹太人是生是死,答案只有秘密对话里的发言者知道……
民初，元宵节。美丽聪慧的沈云娘邂逅男子傅文旭，两人相爱，云娘自小受到同父异母的哥哥沈万生的欺凌，虽天生命苦却性情贤良，傅母寡居多年，尤其珍爱自己的儿子，一心想为文旭寻一门好亲事，因此极力反对儿子与云娘的婚事。两人历经波折终于结婚，云娘尽力辅佐傅家茶叶生意，渐渐赢得了傅母的认可。可是在哥哥沈万生的设计谋害下，云娘历经坎坷，怀孕流产并遭遇父亲身亡，几近崩溃。伤心欲绝的云娘再度怀孕，在柴房中产下一子念文，几经波折，云娘和念文离开傅家，独自在后山生活。始终乐观坚强的云娘将念文抚养成人。长大成人的念文，知道了这一切，决定下山为母亲讨回公道，善良的云娘最终让念文明白了“放下仇恨，好好地、积极地生活，才是自己该做的”的道理。
