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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.
祖母张欣的出现让大家知道一个月后九星连珠僵尸变会成王祸害人间,苏勇和李彤疯狂训练,即将九星连珠,林素牺牲自己发动九幽灭魔大阵。
就看杨举人家这势头,便是海瑞,也不敢动了。
It happens that I like you too

抗日战争末期,厦门的一天黄昏,医学院学生何美纪正准备回校,在桥上遇到日军轰炸,急忙躲闪间,来自马来西亚的华侨实习生林志祥奋不顾身地上前紧紧抱住美纪,自己却被炮弹熏得满脸黑烟,志祥和美纪在等待轰炸过去的时光中互生情愫。他们相约,如果能躲过这场轰炸,明晚会在初次相逢的桥上约会。志祥所就读的学校突然宣布撤离,志祥因此没能赴晚上与美纪的约会。志祥撤离来到桥边时,取下自己胸前的名牌,放在桥边。晚上美纪到来看到志祥的名牌上沾满了血迹,心情非常难过,她担心着志祥的生死。战争结束后,在拥挤的火车战,美纪重遇志祥,看到志祥还活着,美纪心里又喜又忧,因为虽然她心里一直放不下志祥,但一切都已物换星移,人事全非,战争带给这对恋人却是永远的遗憾。
杨长帆依然是如此的耿直。
A couple hires a professional digger (underground structure explorer) to help them find their friends, who mysteriously disappeared in the subway.
原来,郑氏年轻的时候,泥鳅爹刘三顺也曾向郑家求过亲。
我叫……叫丁洋……丁洋结结巴巴地说道。

  从2003年开始,圣丹斯电影节开始设置阿尔弗雷德·P·斯洛恩(Alfred P. Sloan Award),此奖项旨在表彰以科学/技术为主题,或者主人公为科学家、数学家的优秀电影,相当于一个十分可爱的“科学奖项”;获奖者将得到由阿尔弗雷德·P·斯洛恩基金会给出的2万美元奖金。
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1930年,十三岁的林语慧因为是庶出而失去母亲,跟着养母从上海到了南京。为了生计,每日陪着养父沿着秦淮河畔寻觅生计,五年后的偶遇父亲的故友陈默人,被带进新的家庭,与陈沛文兄妹及仆人高伯之孙——高金榜相识,以一个普通女孩的身份继续着忍辱负重的生活。因为父亲林楚沧与陈默人有过指腹为婚之约,她只好将与高金榜的爱情深埋于心,在日寇的铁蹄踏遍南京之时,用孱弱的肩膀挑起了救助难民、保护至死不做汉奸的陈默人的大任。令她未曾想到的是,一直不愿接纳的未婚夫积极走向革命,曾经深爱的人却一步步成为民族的敌人。她在强敌遍布四周的南京,巧设计谋除去民族的敌人;又以民族大义鼓励向自己表达真爱的未婚夫走上更广阔的革命之路。林语慧,一个秦淮河畔的普通女孩,以平凡的歌声唱响了战争年代的南京爱情故事。
(4) The list of employees of the branch and their ID cards, the qualification certificate of registered fire engineers and their social insurance certificates, the professional qualification certificate of special types of work in the fire protection industry, and photocopies of labor contracts;
简先生起身,退出牢房。
“为心爱的人而出镖、为江湖义气而保镖、劫镖者为一段飞蛾扑火的爱情,爱的缠绵……义的肝胆……恩的纠葛……仇的报复……”在一群血性男儿—小小飞封平,快剑辛力,及程铁衣,程采玉兄妹协助下,护送“翡翠娃娃”前往云家庄。保镖途中,有官府的锦衣卫指挥使翁泰北,名门正派少林、华山、青城,以及邪恶的天下第一大帮天幽帮、七星堡等等各路英雄豪杰争相拦截;又有柔情似水却泼辣如虎的血手胭脂的纠缠。多情又多义的风流少侠郭旭,如何将这趟镖送到目的地,就是本剧吸引人之处!
程景墨是茶商大家族的继承人,更是个热衷于山水笔墨的逍遥公子,而阮秋水是个精算能力一流、背负父亲债务和家庭重担的坚韧女生。剧中二人的情感及命运正如“水墨”一般,相互交融难舍难分,然随时间的流逝,他们也将面临“水染墨成浊”的迷局困境。
He chose several articles he liked, and then wrote down a brief description of the content of each sentence, as long as he could recall what the sentence meant.
风姿物语的故事发生在虚拟的鲲仑世界四块大陆的风之大陆,主要讲述的是主角兰斯洛从一个山野小子,历经重重磨炼,成为王者并统一风之大陆的故事。山野小子兰斯洛,在杭州邂逅流浪在此的女扮男装的雷因斯公主小草,并在断桥碰到在杭州隐居治病的龙族少主紫钰。兰斯洛对紫钰一见倾心,发誓做大事赢得美人心。在杭州,兰斯洛展开对紫钰的追求,而丝毫没注意小草对他萌生爱意。兰斯洛和小草因识破了不择手段复国的赤先生的阴谋而被追杀,在冒险之旅中救下了兽化为猫女的枫儿。同时紫钰在师兄周公瑾授意下暗中保护两人,原来,兰斯洛神秘的天人之血出身已经让隐藏在幕后的周公瑾觊觎,只有得到兰斯洛才能得到雷峰塔下的秘籍天魔经和治疗紫钰的隐疾。周公瑾授意紫钰成功后必须干掉兰斯洛,在兰斯洛对紫钰无数乌龙的追求中,紫钰发现自己爱上这个山野粗人,在决战时刻违背师门意愿保护了兰斯洛。在雷峰塔的地下宝藏库中,一切矛盾交织在一起集中爆发,兰斯洛最终消灭了赤先生的黑暗势力,紫钰获得冰蝉,虽重伤了兰斯洛但成功瞒过周公谨,兰斯洛得到了秘籍天魔经,并于小草启发下开启天魔经,开始了争霸大陆之旅。