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? Addon written by C/C + +. Loading through the dlopen method.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).20世纪40年代，民国时期广东广州西关太平街生活着七十二家房客，故事主要描述房东与房客的较量，以及街坊生活的酸甜苦辣｡In theory, a crown number has only one birthday number, and the crown number is very limited. There are countless people born on the same day in China, so this kind of resource is relatively rare and will not be available once sold. Therefore, please contact us to inform you of the birthday number you are looking for before purchasing. We will search our birthday number library to see if it has not been sold yet. Therefore, we must hurry up! This set of birthday notes is suitable for wedding commemorations, birthday numbers, and any special memorable day.康纳邀请海沃思家族参加一场49人队的比赛，他正试图完成他的最新交易；汤姆有机会展示他的足球技术；丹尼斯试图让莎拉接受沙米娅对啦啦队的新兴趣。尤其是那一双清澈无比的眼睛，更是让人喜爱。这帮高中时候就一起计划怎么脱离处男身的老友们现今已经长大，就在他们即将踏出大学校门的时候，传来了吉姆（贾森·比格斯 Jason Biggs 饰）和米歇尔（艾丽森·汉妮根 Alyson Hannigan 饰）即将举行婚礼的消息，更加碰巧的是婚礼和他们的成人礼巧合在同一日。 于是，这帮死党相约为吉姆举行最后一次单身派对，当然史蒂夫（西恩·威廉·斯科特 Seann William Scott 饰）其实是不想放过婚礼上漂亮的女傧相。芬奇担忧自己性感漂亮的妹妹柯登斯落入了史蒂夫的手中，于是也来到参加吉姆的单身派对，一连串妙趣横生的场面自然让你笑破肚皮。