In TCP implementation, when receiving the SYN request from the client, the server needs to reply the SYN + ACK packet to the client, and the client also needs to send the confirmation packet to the server. Usually, the initial serial number of the server is calculated by the server according to certain rules or adopts random numbers. However, in SYN cookies, the initial serial number of the server is obtained by hash operation and encryption of the client IP address, client port, server IP address, server port and other security values, which is called cookie. When the server suffers from SYN attack and makes the backlog queue full, the server does not reject the new SYN request, but replies the cookie (SYN serial number of the reply packet) to the client. If it receives the ACK packet from the client, the server subtracts 1 from the ACK serial number of the client to obtain the cookie comparison value, and performs a hash operation on the above elements to see if it is equal to the cookie. If equal, complete the three-way handshake directly (Note: At this time, you don't need to check whether this connection belongs to the backlog queue).
Nine, tensioning film how to model?
外婆做错了事，为啥都来骂她娘哩。
《大英雄狄青》是一部52集的国产历史题材动画连续剧，本片讲述了北宋名将狄青由不谙世事的孩子成长为战西夏、平叛乱的一代英雄的故事，动画片《大英雄狄青》以写实的风格、清雅的画风、幽默的人物语言以及富于民族气息的音乐，在讲述英雄故事的同时，也会带领观众深切感受悠久浓郁的民族文化。本片由上海美术电影制片厂制作，于2003年1月24日在上海电视台电视剧频道首播；2004年10月28日首次登陆央视，在少儿频道《中国动画精品版》（《动画梦工厂》节目的前身）以每晚7点一集的形式播出，此后又在《银河剧场》等栏目中播出多次。
主人公石破天自小没名没姓，和一个他以为是自己母亲的女人，僻居于一座不知名的荒山上。那女人叫他做狗杂种，他便以为这就是他自己的名字。那女人脾气古怪，动辄打骂于他，他也习以为常。他从小学会了砍柴、做饭等种种家务，却大字不识一个，于世事、人心更是一无所知。一天那女人忽然不见了，他自小相伴的那条叫“阿黄”的狗也不见了，便出去到处寻找。结果人和狗都没找着，自己却迷了路。
When setting up a network, the selected network cable must have flame resistance to reduce the probability of fire. Generally, the rubber outside the real network cable is flame-resistant, which is a national mandatory standard. However, fake network cables are often made of common flammable materials. When we buy network cables at ordinary times, we can also use this feature to identify the authenticity of network cables.
该剧环绕着争夺一份名为《蓝石榴》的小说遗稿的种种，将波澜起伏、摄人心魄的故事铺展开来。细致剖析社会各色人等心态，错落变换多个时空，再现了20世纪90年代初北京城乡多个层面的社会风情与生活脉息，描绘出了一系列文化界与市井百姓斑斓多姿的人生图景，予人许多深切联想和启示。
青梅竹马的谷微与徐子睿如欢喜冤家般的共同成长，在四年大学生活中互相鼓励、学习和生活共同进步，在相处中慢慢喜欢上彼此却又互相较劲说不出口，因种种误会而遗憾错失的两人，多年后成长成熟，再次重逢，这一次，谁都不愿再放手。
It is said that programmers who do not know C source are not good cooks. In fact, I have been in contact with C source for a long time and have written it for a period of time. I just didn't write a tutorial at that time, Write one today, I'll write it later when I have time, You may also have found that the speed of my recent article update is very slow. It's a long story. I was going to write about domain name space before, but I didn't have time to spit out any more. Today, I'd like to introduce how to build a C source environment under Windows so that people who like to write C source can run their own code. OK, let's not talk too much. Let's simply talk about how to build it!
6.2 For example
Bulk Import
飞蛾扑火，美女毒魔，铁爪神鹰，雷霆突破。信奉“我以青春赌明天”的海霞、文秀两女孩，确实有赌的资本，身材若火，性感迷人，生性乐观，敢作敢为，然而，这一切被来大陆投资的香港奸商马约翰看在眼里，一个恶毒的计划紧密部署……海霞被马约翰的风度与豪性征服，数度云雨春宵之后，即被派往大陆，利用美女的特殊身份，体内藏毒，多次成功往返港台，当马约翰故伎重演将绮丽小姐收于股掌之中时，绮丽利用作爱时杀了马约翰，海霞与绮丽成了横行香港的女魔头……港警向大陆警方发出协查要求，我刑侦员大力打入毒窟内部，在取得她们信任的同时，掌握了他们大量贩毒证据和网络线索，恰此时刻，他的身份曝露，边防部队赶来援救，一场生死大战即将打响……
历险新片《地心历险记2：神秘岛》，源于17岁的肖恩•安德森收到的一组发自无人知晓的神秘岛密码求救信号。 因为无法劝阻肖恩追踪信号来源，肖恩的继父汉克只能陪着他一起踏上这段南太平洋之行。而他们最终的目的地，是一座没几个活人亲眼见过的岛屿。那里风光旎丽，鸟语花香；珍禽异兽，应有尽有；金山火山，叹为观止；是座无奇不有的神秘天堂。
凤海已经备好了绳子，拿过风铃，找了处显眼的地方，高高挂在廊上，好让下面吃饭的人也能看见。
意外出名的农民歌手万喜，衣锦还乡后被乡亲们选为村长。万喜本想在村里大干一场帮助大伙脱贫致富，没想到乡亲们根本不想改变现状，只想利用他的名气多要点救济款。万喜不愿当个“要饭”村官，他顶住压力大力发展特色农牧业，却遭遇种种困难与挫折。万喜疲于应付，幸好他的初恋杏花帮忙解决了不少难题，这也引起了万喜媳妇梅花的误会。收获季节，农产品滞销，乡亲们责怪万喜无能想换个村长。万喜说服乡亲们让他试用几个月，发誓让大伙挣得比扶贫款多几倍。为了实现对乡亲们的承诺，万喜聘请了女大学生田欣帮助大伙利用互联网卖农产品。在众人的努力下，农产品销售一空。万喜实现了承诺，成为乡亲们认可的村官
When faced with large-scale attacks, it is even more important to resist attacks from the upstream.
After review, the fire protection technical service institution no longer meets the qualification conditions, or has violated the provisions of Article 47 and Paragraph 1 of Article 50 more than three times within the validity period of the qualification certificate, shall not go through the renewal procedures.
接下来的汉越两国联合作战的过程中，如何灭楚只是一方面，战后到底如何？战争之中少不得要防备汉军。
