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.
其实，她并没那么坚强，她此刻很想埋头在张槐怀里。
The last case was a little shorter, let's have another one! The "disappeared couple" that should be well known by many people.
清末乱世， 留洋归来的贝勒爷崇利明（黄子韬 饰），邂逅了初到京城少年阿易，邀其加入特殊宫廷护卫组织：艳势番。清廷风云突变，崇利明与阿易集结七位热血青年重组艳势番，迎来新生。众人赴四川、奔上海、保和谈、斗洋人，以青年的热血对抗无边黑暗，他们面对动荡时代的艰难困阻，却始终不变爱国爱民之志，始终不减热血同行之心。最终，阿易寻找到了新的理想，崇利明亦与阿易联手，成为历史和平过渡的护航者，见证了新时代的来临。
The above code, let's run and print as follows:
"Then you didn't take any remedial measures at that time?" I asked.
讨厌这部电影，大多都是原着粉。
丁大水喝令丁水妹放八路军走。八路军伏击伊藤大队长押送的船队，日军仓皇逃窜，八路军的船小拦不住日军的汽船，丁水妹跳入水中，用渔网绊住螺旋桨，拦截了一艘货船。
大端朝全盛之际，牧云皇族和穆如世家三百年的盟约因为一个预言而冰裂。预言说，六皇子牧云笙执剑则天下大乱，而穆如寒江将成为未来的皇帝。以牧云栾和牧云德为代表的地方势力密谋趁机夺权，为此不惜与邪恶势力合作。太子牧云笙不爱江山不信天命，为追寻真爱宁愿牺牲权力地位。穆如寒江生于世家长于市井，喜欢自由，又想守护秩序，历经艰险磨难，终于回归家族。硕风和叶在与穆如铁骑的战斗中失去了亲人和族人，经过了血与火的洗礼，生与死的诀别，人情的冷暖，权力的碰撞之后，他从一个复仇者成长为铁沁之王。
早恋，高中生时期一切的越界行为都被身为班长的小港严厉打击，但是小港自己却偷偷暗恋自己的女老师，为了讨好自己女老师，不惜出卖自己的妹妹小美。被出卖后的小美为了抗议与报复玩起了自杀游戏，没想到弄假成真。小美的亲身哥哥却发现了其中猫腻，本以为相安无事的两人却被幕后黑手操控着一步步走向灭亡。
你能活到今天当真是奇迹。
小元带麦克旧地重游，精心策划了一段告白…眼看仲贤与Kelly出双入对的互动密切，一向八卦的尚菲将Kelly拉到旁边询问他们的感情状态，却遭Kelly否认，尚菲建议她只要往前一步就会有所改变，没想到一旁听到的仲贤挺身而出向Kelly高调示爱，表示自己一定会勇敢跨出这一步…
22岁的金妍雨在海边长大，性格开朗、诚实正直，为了赚钱谋生，她放弃了上大学的机会来到汉城，并在有线电视台购物频道当节目主持人。
这时，他已经从声音中听出，是吕馨打来的电话。
Exposure compensation, focus mode, white balance.
Pos + +;
奇艺坊马戏团在马来西亚巡回演出，团员们偶然听说二战时期日本人留下的宝藏的消息。在飞刀高手张大初的带领下，他们一行五人杀害寻宝者，一心想成为飞刀行家的小人物桑尼尾随前来，亲眼目睹大初一众行凶全过程。
C. Start gitlab
曾经胸怀奥运拳王梦想的林德奎（黄正民 饰），人过中年其人生几近完败，他所经营的面馆门可罗雀，与女儿的关系又紧张非常。在此关头，他半推半就参加了赏金丰厚的“格斗真人秀”。不鸣则已，一鸣惊人，林德奎接连击败强劲对手，与黑社会小混混申载硕（尹济文 饰）的对决更令现场和电脑、电视机前的观众大为惊叹。节目收视率直线攀升，林德奎不仅拥有自己的坚实拥趸，连面馆的生意也顺带好了起来。不久之后，拳台另一角走来青年时代的好哥们，日常跟在老板屁股后面点头哈腰的某企业部长李尚勋（柳俊相 饰）。生活在彼此的心头蒙下厚厚尘土，是时候用拳头击碎虚伪的面具了。
前面一名车役回头道：大人，今日是花朝节，西湖要闹腾闹腾了。
