When a client accesses a server's web service, The client sends a message to the network card, The tcp/ip stack is part of the kernel, Therefore, the client information is transferred to the web service in user space through the kernel's TCP protocol, At this time, the destination destination of the client message is on the socket (IP: Port) that the web service is listening for. When a web service needs to respond to a client request, The destination destination of the response message sent by the web service is the client, At this time, The IP and port that the web service listens on becomes the origin instead, As we said, Netfilter is the real firewall, It is part of the kernel, Therefore, if we want the firewall to achieve the goal of "fire prevention", You need to set up checkpoints in the kernel. All incoming and outgoing messages have to pass through these checkpoints. After checking, those that meet the release conditions can be released, while those that meet the blocking conditions need to be blocked. As a result, input checkpoints and output checkpoints appear. These checkpoints are not called "checkpoints" but "chains" in iptables.
尉缭不可能将所有的希望全都寄托在栾布身上。
UDP
杨秋池呈报建文余党在苗疆一案，皇上龙颜大悦，特委杨秋池重任，名则下旨令其前往苗疆为官，实则暗中追寻建文余党的踪迹，以彻底铲除建文余孽。最终在苗疆人民群众的帮助下，发现建文余党的老巢，成功抓获建文帝之子朱文奎，破灭了建文余党的复国计划。
黄初雨乖乖点头，又道：那你晌午去王府看我。
Yu Chen: It's incredible.
当陈华与吴敏的婚外情无意中被赵悦琪发现，陈华抱着愧疚之心想要挽回之时，陈华的哥们周良告诉他，赵悦琪也曾有一段不为人知的初恋情，两人的感情最终又将何去何从……
大伟大学毕业后，和几个小伙伴一起做了一个软件工作室。大伟的女朋友丽丽是电视台少儿栏目的主持人，他们常常为人生、家庭、爱情的困惑请教林博士。林博士是一位有着超常想象力的发明家，发明了一些超越现实能力的设备，比如可以复制人的复印机，时空穿梭机，心灵听诊器等。林博士的帮助，有时也会出些问题，比如应该回到10年前，却回到了明朝；比如应该删除不愉快的记忆，结果删除了全部记忆。大伟和丽丽在林博士的“心灵听诊器”的帮助下，明白了彼此是多么的在意对方。不管用了时空穿梭机，还是用了心灵听诊器，大伟发现，最美好的其实是现在，最幸福的也是现在，把握好现在才是人生中最应该做的事情。
The reason why the logic for creating an object is put into a separate class is that it can be used by multiple clients. And separates the creation and use of objects. However, this design also has many defects. First of all, SimpleFactory is a specific class, so we must program for the implementation, making the system lose its flexibility in this respect. Second, if we add new products, we have to modify the code in SimpleFactory, which violates the opening and closing principle. The above model is also called simple factory. He does not appear in GOF mode, it is more like a programming habit.
第4集，矢本悠马饰演在相机厂商工作的人，明日花キララ扮演社长秘书，池田铁洋饰演建筑设计师，小野塚勇人饰演音乐剧演员。
三院上房，郑氏刚把那黑木匣子放入暗柜收好，才要跟张槐说话，就听外面绿叶回道：太太，老太太让绿枝来叫太太去前边，她有话要问。
近藤史惠的小说？鞑靼之梦？以“马卡龙是马卡龙”为原作的《主厨是名侦探》。西岛饰演的法国餐厅“Bistroythod”？填充？”的厨师？三舟忍以超乎寻常的洞察力和推理能力，解开客人们卷入的事件和不可思议的事件之谜。
会稽山中的形势也发生了诸多变化，有更多人的蠢蠢欲动，趁虚而入了。
Tong, no unit or individual is allowed to occupy the fire exits to build houses, pile things and set up stalls. The existing flammable building intensive areas in cities and towns should be gradually transformed in combination with the overall planning of cities and towns, and contiguous transformation can be carried out if conditions permit. Fire lanes are generally not allowed to park other vehicles, and residents should be discouraged from building illegal buildings and piling up articles. 3. Requirements for setting up fire lanes in factories, warehouses, storage yards, storage tank areas and large public buildings According to the reflection of each fire fighting squadron in fire fighting practice, When a fire occurs in a large area of factories, warehouses, storage yards and storage tank areas, the fire burns very fast, the fire is fierce, and the fire fighting lasts for a long time. If there is no fire ring lane and flat open space, it will inevitably cause fire vehicles to be unable to enter or leave, which will inevitably cause blockage and make it difficult for fire engines to approach the fire site. Therefore, fire lanes should be set up in factories and warehouses. When a Class a, Class B and Class C factory building occupies an area of more than 3000 square meters or a Class B and Class C warehouse occupies an area of more than 1500 square meters, a flat open space with a width of not less than 6m for fire engines to pass through can be set up along its two long sides. Open yard area for flammable and combustible materials, Liquefied gas storage tank area, For Class a, Class B and Class C liquid storage tank areas, there shall be large public buildings such as fire lanes or flat gymnasiums with a width of not less than 6m and a space of more than 3,000 seats, halls with more than 2,000 seats and exhibition halls with an area of more than 3,000 square meters that can be passed through by fire engines. Because of the large volume, large floor area and large and dense personnel, in order to cause fire, there shall be large public buildings such as the gymnasiums with a flat space of more than 3,000 seats, halls with more than 2,000 seats and exhibition halls with an area of more than 3,000 square meters.
Around these problems, Rui Yi interviewed the founders of some children's thinking ability training institutions, parents who have invested capital in this field and have let their children receive thinking ability training.
(2) Exhaust energy
电视连续剧《天地情缘》，以回归前的香港为背景，讲述了大陆的三个姑娘孟晶晶，邱春慧和李梅来到香港后的经历，更通过她们各自坎坷、曲折，甚至是充满传奇色的遭遇，构成了一幅具有强烈戏剧冲突的人生画卷，生动地表现了香港和祖国内地由于百年分离所形成的社会矛盾，文化差异和人性冲突还通过三位内地姑娘与香港阔少黎少雄，北京青年田兵，香港平民黄德安，许世发等人之间的感情纠葛，反映了炎黄子孙血脉相连的情缘就像天地相依一样是无法割断的。
但姚远看到二人身份差距悬殊，选择放手初恋，独自远走创业之路，在香港创建了远方快递。此时，路晓欧跟随母亲来到香港学习，两人再次相遇。路晓欧帮远方快递度过难关。正当两人经过诸多风雨合作默契，逐渐将远方快递引向辉煌时，一次经营危机造成了远方快递欠债累累。姚远不忍路晓欧受到牵连，故意将她气走。路晓欧离开后，姚远想方设法独自还清债务。2014年恰逢国家正式全面放开快递政策，姚远主营的传统私人快递业务遭到新兴电商的大力冲击，但姚远审时度势，迅速推行“远方”无人智能快递，化险为夷，取得成功。面对海归商人刘云天的竞争，姚远不按规则出牌，频出奇招，再次打赢漂亮的翻身战。
讲述了一对夫妻由一见钟情，到由于婚姻琐事争吵、直到形同陌路即将离婚的故事。这是Luis和Eva初见后的第11年。他们深爱、结婚、生子，而现在，在去往法院的路上，这是他们离婚前最后一次面对面。去法院的路途显得很长，他们回忆起造成这一心碎结局的种种过往…
/ponder
