(6) Key Position: The attacker uses his body to block the defender behind him and occupies a favorable catching position.
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).
II. Operation:
再找不着，我哥都要请虎禁卫出头了。
No bb, the landlord is asleep.
摄影师徐然在一次拍摄中意外经历车祸后失明，遭到女友谢薇薇的抛弃，在他对生活失去信心，心灰意冷的时候遇见了李佳佳，李佳佳一直照顾着徐然帮助他重拾生活的信心，在这个过程中她也渐渐喜欢上了徐然，李佳佳不顾家人的反对毅然的选择和双目失明的徐然在一起。两人一起在残疾人协会做义工，不料徐然再次被失控的推车撞到，这次却又因祸得福恢复了视力，而这时徐然发现李佳佳离他而去，原来李佳佳因为自己儿时脸上留下的疤痕觉得自己配不上徐然，虽然两人爱情历经种种困难，但最终还是走到了一起。
I. Detailed steps to enter DFU. (After successful entry, the screen is all black)
以传说中的妖怪们生活的share house为舞台，描绘了被最坏的前男友夺去一切、伤痕累累的主人公·目黑澪（小芝风花）坚强成长的恐怖喜剧。小澪所面临的麻烦和麻烦的对手，被超级多管闲事的妖怪们挖出，用过激的方式打倒。
芦苇、软木——十车。
本期ClubFriday要跟大家讲述的故事是关于泰国非常常见的夜店舞男和夜店DJ的故事。夜店舞男Tiger第一次上台很紧张，在兼职女DJ Goi的帮助下他成功登上了人生的舞台，从此俩人的感情便开始了变化，但是他们两个人都是有情侣的人，算是各自劈腿了？...
Giving meaning and fine coding: (quasi) experts can understand the words and terms in their own fields very quickly, and when storing information, they can consciously adopt various metacognition processing strategies.
台湾青年学生钟浩全因弟弟浩然被迫征募进日本军队，父亲不堪受辱而杀身取义，便深夜刺杀日本宪兵大队长，遭到大追捕，浩全与未婚妻佩瑜等同学毅然偷渡到大陆投身抗战、历尽了生活的悲欢离合。
受用了一朝，一朝便宜。
翘儿使劲点了点头，所有又露出疑容，只是……只是什么？我不喜欢千户一家子。
Thanks to Tengxunyun's friends, they provided a high-security IP, which enabled the website to go online again. Now, my protection is that there is a CDN in front of the source server. If the domain name is attacked, CDN can block it. If I directly attack the source server, I bought a flexible IP, which can dynamically mount the host instance and change the address when attacked. This is just a technical blog, the content is free, to prevent this point, I am speechless.
整天笑不停，我见了都替他腮帮子酸得难受。
没有犹豫，燕南天大步踏了进去。
Sockstress is different from the previous flood attacks. This attack does not need to send a large amount of attack traffic in a short period of time. This attack is a slow attack.
