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).
Some of these changes may be felt by oneself, thus realizing that one is heading for death. Others, especially some changes in the final journey, may not be perceived by oneself.
When the applicant receives the first-level qualification certificate for maintenance and testing of fire-fighting facilities and fire safety assessment, he shall return the second-level qualification certificate to the original license issuing authority for cancellation.
The term "fire-fighting technical service institutions" as mentioned in these Provisions refers to social organizations engaged in fire-fighting technical service activities such as maintenance and testing of fire-fighting facilities and fire-fighting safety assessment.
芝加哥警署第21辖区分为两个部分，包括直接打击犯罪的行动组和负责调查城市之中犯罪团伙的情报组。汉克（杰森·贝吉 Jason Beghe 饰）是情报组的组长，他嫉恶如仇，将打击犯罪当做自己义不容辞的首要任务，在他英明果断的决策下，许多穷凶极恶的犯罪分子一一落网。
Link: https://www.zhihu.com/question/44712155/answer/98597003
《金太狼的幸福生活》讲述北京某报社记者小米（李小璐饰演）背着母亲（宋丹丹饰演）与妇产科大夫金亮（王雷饰演）登记结婚。剧中由王雷饰演的金亮是当下“夹板男”的一个缩影。不管矛盾再多，金亮始终和爱人小米携手，一一克服遇到的困难。这一角色会让很多和他一样的“夹板男”找到共鸣。而两家人变一家人的小两口和两个老人那种貌似平静却又激流暗涌的生活，加上几位老戏骨的传神幽默的演绎，也会让观众捧腹之余，学会勇敢直面问题和矛盾。宋丹丹在剧中饰演一个“凶恶”的岳母，不仅不喜欢女婿，更和对方家人有水深火热的“矛盾”。
饭后，将家务安顿托给葡萄姑姑。
In our spare time, we will go deep into the grassroots to help farmers do farm work. We will really walk into farmers, understand their voices and their living conditions. At the same time, it is also a combination process of practice and knowledge, and it is our "second classroom".
外面闹成这样，东厢的泥鳅自然听见了，顿时不顾病痛，就要爬起来往外边去。
二十世纪初的中国内忧外患，灾难深重。辛亥革命未能挽救国运，一批中国进步青年开始把寻找救国道路的目光转向欧洲，参加了留法勤工俭学运动。在重庆留法预备学校，邓希贤（青年邓小平）与堂叔邓绍圣一起参加留法资格考试，并且认识了李火麟、耿照魂。
张杨岳父等人则大为欢喜。
马蹄震拂晓，风卷惊飞鸟，闪亮刀出鞘，酒酒醉带笑，英雄不留名，千里雨中行，搏杀崆峒顶，血染见豪情。
以王女露恩为女主角，讲述其与水源诚恋情。因为水源诚发明的奇怪机器失控，一干人等被传送到EL-HAZARD世界。（本作人设也是系列最美的一作，与OVA不同，王女露恩的设定变为与水源诚年龄相近的少女）
杨寿全走上前去，看了看风铃随口一笑，长寿？呵呵。
走村窜乡的何班主表演的精彩皮影戏吸引了山圪崂村的寡妇婵儿，而美貌的婵儿也令何班主心动。何的前妻因无法忍受其经常在外演戏不归家，把儿子屎蛋子留下后离开了。何一心希望屎蛋子能继承自己的事业，但屎蛋子始终对皮影戏没有兴趣，而男孩子八抬却处处跟着他。十年动乱时，皮影戏停演了，何成了“牛鬼蛇神”，婵儿也不得已另嫁他人。改革开放后，何又重新演起了皮影戏，屎蛋子却在镇上放起了外国电影，失望的何终将自己的艺术传给了八抬。何去看望婵儿，将她送给自己的烟荷包做成了一个皮影人，将对婵娟儿的美好回忆留在了心爱的艺术里。
再也配不上心爱的人，她选择调离
成败就在此一举了，让人如何能不紧张呢？越来越近了，看到陆明和周大两个人喜笑颜开，越军营寨防御松懈的情况，姒摇心中一阵阵得意的冷笑。
《王国》讲述了朝鲜王世子在调查离奇疫病的过程中发现了威胁国家安危的残酷真相的故事，是一部六集长度的僵尸剧。而第二季将接续第一季展开，整个故事将在第二季完结。
血滴子将要执行新任务，缉杀逆贼“天狼”及其党羽“牧人帮”。天狼曾多次密谋推翻清廷，其理念於边疆一带甚得民心，信众声势更是日益壮大。乾隆欲先下手为强，授命血滴子伺机暗杀天狼，以绝后患！但行动中，将天狼押上京城之际，牧人帮在通往刑场之路早布埋伏，准备舍命拯救天狼，血滴子全体负隅顽抗。在危急关头，血滴子统帅龚额之女穆森因心急行动，而反被天狼胁持。王磊亦
