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).
尽管赢得游戏能够给南多情带来一大笔赏金，但一旦失败，却亦是要背负巨额债务。少不经事的南多情在游戏刚开始便败在了曾经德高望重的老师手上，无奈之下，她找到了刚刚出狱的天才诈骗师夏宇振（李尚允 饰），希望它能够帮助自己扳回一城。见识到了南多情的单纯和执着，实在无法对此坐视不管的夏宇振加入了游戏。
这样的事情竟然拉上自己，项羽实在太不厚道了，一向爱惜名誉的尹将军自然不会答应。
七十年代，城市知青马杰（文章 饰）来到西北某农村插队，被村里漂亮种驴——黑六的叫声吸引。马杰嫌黑六不让他骑，某次工伤在诊所缝针时偷了麻醉剂打给黑六，队长大莲（岳红 饰）以为黑六生病，心急如焚。马杰奇迹般地“治愈”了黑六，赢得大莲和队里的信任，成为牲口饲养员。马杰一边喂驴，一边偷偷与村里的女青年彩凤（白静 饰）相恋。与此同时，马杰对黑六只配种不干活的特殊待遇愈发不满，并对大莲“驴比人值钱”的论调暗自气愤，发泄中竟打坏了黑六的“命根子”。无法配种也不能干活的黑六被马杰宰杀，却没曾想黑六的弟弟，毛驴黑七，从此与马杰不共戴天。人与驴的斗争愈演愈烈。
(2) OvR
We can see the above code; Player-to-player coupling code has been removed, However, all logical operations are put into the intermediary object for processing. Any operation of a certain player does not need to traverse to notify other players, but only needs to send a message to the intermediary. The intermediary processes the message after receiving it, and after processing the message, the processing result will be fed back to other player objects. The intermediary mode is used to remove the coupling code between objects. Make the program more flexible.
雨中听说我爱你
Fire control technical service institutions and their employees shall assist and cooperate with the supervision and administration of fire control institutions of public security organs in accordance with the law, and shall not refuse or obstruct them.
张家不好了，陈家指望谁？我看你别叫机灵鬼了，叫糊涂鬼算了。
我刚才经过一个地方，有个坑洼地。
I. Original Sin of Formula
讲述生活中的幽默趣事。
Judging from the harmfulness and attack behavior of DDoS, we can divide DDoS attack methods into the following categories:
If there are too many specific values, I will not post them. Du Niang can easily search them.
After his father died, Li Lei was baptized as a Christian, which still provided limited spiritual comfort to him. He often falls into depression. Remorse, remorse, and flashback in his mind of moments when he might have made better decisions. Alternatively, it may help prolong the life span of his parents.
一部有着大大小小的秘密的，17岁左右青少年的成长喜剧青涩故事。
网剧《玛丽学园》主要讲述了梦想跻身顶尖时尚集团的热血少女们在别具一格的化妆学校里的励志故事。在这里，有青春期女孩子们的志同道合，也有校园少女们难得一见的热血钟情。
