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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.
蒲家二儿子蒲地流英俊而正气，母亲传给他一身好功夫。能文善武的蒲地流也因此备受十里八寨女人的喜欢。尤其是同寨子的寡妇张正英，她在蒲地流青春年少时，心中便早早植下了一份特殊的情感。蒲地流也十分喜欢这位比自己年长且漂亮聪慧的寡妇，人前人后姐姐长短甚是亲热。
各有特长刑警一起对付国家级危机威胁。
Netflix在《黑镜》官方社交媒体宣布，这部科幻剧集还将回归，也就是说第五季已续订，编剧、主创查理·布洛克还将大开脑洞。
宋仁宗年间，开封府尹包拯，通称包青天，为官清廉，为民伸冤，強调「人在做天在看」、「举头三尺有神明」不畏強权，除惡务尽，脍炙人口的單元有「秦香蓮」、「真假狀元」、「狸貓换太子」等。 (1)铡美案1-6 (2)真假状元7-11 (3)狸猫换太子12-18 (4)双钉记19--21 (5)探阴山22-25 (6)红花记26-29 (7)铡庞昱30-34 (8)铡包勉35-43 (9)乌盆记44-46 (10)秋娘47--51 (11)铡王爷52--55 (12)古琴怨56--60 (13)三击鼓61--69 (14)孪生劫70--74 (15)报恩亭75--79 (16)真假女婿80-84 (17)紫金锤85--88 (18)天下第一庄89--97 (19)寸草心98--102 (20)屠龙记103-110 (21)鸳鸯蝴蝶梦111--115 (22)天伦劫116--121 (23)孔雀胆122--127 (24)真假包公128--133 (25)贞洁牌坊134--139 (26)血云幡传奇1
在一场毁灭性的地面入侵之后，一小群城镇居民不得不团结起来。当他们挣扎着生存的时候，他们意识到他们必须比攻击者领先一步，并一起工作，以获得反击的机会。
男子这便起身，轻轻掸了掸衣袖，不是我不愿久留，实在是不想再看樱花。
我娘听我爹的话，我爹说啥我娘都笑眯眯地点头。
你的生命只有不多的时间,如果有机会重返15岁,你会怎么抓住这最后的机会呢,五位55岁的人,他们分别是唱歌走音的歌手,单身老同志,优秀配音员,失败拳手,严格的女教师,有一天他们几个突然都变成了15岁的孩子
Four, about erasers and softening, hidden sideline
就是这一瞬间，英布和项庄已经持剑挡住后面的退路，依照如此形势，若援军无法近前，根本保证不了宋义的安全。
风间俊介主演"日本第一残念"的刑警・押井。虽然每次都靠着超群的推理能力将犯人逼入绝境，但总是在最后的最后事态发生大逆转。所有的功劳都被同事刑警抢走。
The probability of understanding is 0% by default, and the damage rate after understanding is 125% by default.
"If only my father and mother were here, they would be very surprised to see it!"
《保卫爱情》讲述了一个婚姻中常见的“第三者”故事：—对情投意合的夫妻李强和谢玉兰，在商业大潮中几番沉浮，终于建立了蒸蒸日上的事业，但是感情危机就在这时出现了。女人从强人的位置退下，成天无所事事沉迷于麻将。正当壮年的丈夫开始在外面寻找感情的寄托，使迷人的秘书彭小娟怀孕。他四十岁生日那天，彭小娟打上门去……一场惊心动魄的悲喜剧就此拉开了帷幕。
Original address: https://www.jianshu.com/p/9fc41ea941aa
顾小玉对不远处的苏小梨，说道。
尹旭躺在特制的榻上，沉声问道：高易，现如今情况如何？山阴城中可有什么异常？高易立即回禀道：大王放心好了，之前消息封锁，并未有泄露，所以并未引起什么风波。
赵光头与众首领紧随跪地。
