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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.
抗日战争决战阶段,日本为挽败局,制定了一项意图与国民党重庆政府架构“和平路线”的“桐工作”计划。日本情报四课,军统局,以“老虎”为首的中共情工小组,英国情报机关,三国四方,角力香港,揭开以“桐工作”为主题的谍战大幕。侯天亮和包家荣是留学东京帝国大学挚友,又同在驻华日军情报四课任职。侯天亮的秘密身份是中共潜伏情工,包家荣的秘密身份是军统卧底特工,两人心照不宣义为兄弟,虽各为其主,又共同恪守一个宗旨,抗日救亡。当军统获悉中共已经洞悉“桐工作”,并开始掌控相关情报后,侯天亮即被置于日军情报四课和军统特工的双重包夹下。包家荣的任务是清除侯天亮,而当侯天亮向包家荣言明有关“桐工作”实质后,包家荣对重庆政府代表和日本情报部门探讨“和平路线”的意向时,毅然决然地站到了侯天亮一边,两人联手挫败“桐工作”。

她点点头。
咦,今天更新怎么这么早?而且还更新了这么多?杨舟刷新页面,看到小说更新了,顿时激动起来。
三名大陆青年来港做“省港旗兵”,以为做完大买卖,即返乡下过好日子,误闯误撞之下在一个定婚宴会上,认识富商施头,而施头则被美女Lychee所戏弄,认为前进发与施头一样,杇木不可雕,施头扬言要报复,将前进发交给一名模特儿导师Anita训练,令发成为一出色之社交人才。
宝剑可以葬,但是他的寂寞却无处可葬。
长辈们聚集在上房厅堂里,谈笑间。
61. X.X.40
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春田创一喜欢女人,结婚的愿望也很强烈,却完全没有女人缘。然而,他却接到两个处于他的恋爱对象圈以外的男人的告白,这让他内心发生了激烈的动摇。爱慕他的男子之一是上司黑泽武藏,另一个是他的后辈同事牧凌太。
侯府嫡女于妧妧从小遭遇十几次暗杀,靠装疯卖傻才活到现在,却在离家出走时被良人司季良月救下。司季良月答应保护于妧妧在府中安全,而于妧妧需要帮助司季良月在侯府中找出当年导致司季良月残废三年的毒药。有了司季良月撑腰,于妧妧成功逆袭,司季良月更是化身护妻狂魔,处处维护自己心爱的女孩。
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他神情凛然,目光犀利,整个人如一把出鞘的利剑,再无一丝之前的温润。
方志强香港人氏,为人忠厚老实,天生拥有超能力。从小想当超级警察,后来如愿考上警校加入警队。在一次行动中超能力觉醒,并逮捕匪徒,因而成为CID,跟随大陆超能力公安沈节学习超能力“超心波效应”,后加入洪中小组,靠着超能力(“以眼代手”、“移形换影”、“电磁效应”、“听声辨位”等)与一颗善良单纯的心屡破奇案,尔后在一次行动中,同组成员皆死于非命,后来无意间知道,害死同组人士居然是好友陈一贤,志强能将昔日好友逮捕归案吗?   陈一贤,志强好友,从小不服输,凡是以自我为中心,从小想当警察,后来如愿考上警校。后因志强靠超能力屡破奇案,忌妒志强,后被心魔引诱,学习后天超能力“超体能力”,并且为了抢功劳杀害证人,甚至害死全组人,最后东窗事发,被通缉,终于学会超霸气功变成大魔头,超能力比志强还强,甚至利用超能力弑母杀父,志强能阻止昔日好友吗?
  于萍早年失去父母,是姐姐把她抚养成人,但姐姐又在她被劳教时去世,于萍的私生子晶晶也被送给了别人。于萍失去了所有的亲人,也失去了生活的信念,为了找到儿子见最后一面,她从管教所逃了出来。呼毕泰的真诚使于萍深受感动,并承认了自己是逃犯,但避而不谈找孩子的事。呼结泰对她产生了同情,劝她回去自首。于萍感到呼毕泰是真诚的,为了在找到儿子晶晶前有个落脚的地方,想以身相许暂住在此地,但被呼毕泰拒绝了。
Amplification attack is a special kind of reflection attack, Its special feature is that the reflector has an amplifying effect on network traffic, so we can also use this reflector as an amplifier, and the way of amplifying attack is basically the same as that of reflecting attack, except that the network service provided by the reflector (amplifier) needs to meet certain conditions.

《背叛》这部电视剧将告诉您:一个自己把自己策划入狱囚犯,在众叛亲离之后的翻然悔悟。这既是一部大变革时期的灵魂忏悔灵,也是一曲深沉的人间正义之歌
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