The principle is that syn messages are first responded to syn_ack by DDOS protection system. With a specific sequence number (recorded as a cookie). The real client returns an ack and the Acknowledge number is cookie+1. The fake client will not respond. In this way, we can know that the clients corresponding to those IP are real and add the real client IP to the white list. The next access passes directly, while other forged syn messages are intercepted. The following is a schematic diagram of protection:?
The simulation is shown in the following figure
该剧的第一季将聚焦于三位第一夫人米歇尔奥巴马、贝蒂福特和安娜埃莉诺罗斯福的个人与政治生活，她们对美国领导层的重塑具有启示性的作用，此前维奥拉戴维斯曾被宣布将扮演前第一夫人米歇尔奥巴马。
The mobile phone first installs a WeChat, which can be downloaded and installed from the mobile phone assistant, or the installation package can be downloaded from the computer and transmitted to the mobile phone for installation. I believe everyone has already installed it.
经过一个训练期的接触，哈金斯坚定的信心感染了球队里的每一个人，这支五名黑人先发的球队一路披荆斩棘，直指决赛，最后在马里兰大学著名的Cole Field Ho
***下章预计晚上八点。
本来吕馨就感觉，小鱼儿和苏樱很配，现在听陈启一说，更是感觉他们两人真是天作之合、天生一对。
To sum up:
故事舞台设定在有严格等级制度，学生分为学生会长，学生会成员和亲卫队选民，以及平民三个等级的岚之丘学园，神秘转校生清水小百合却破坏了规矩，她不服从学生会，我行我素，与学生会发生冲突。
但眼前，徽王府舰队显然没有给自己围攻的机会，早已离去。
不像父母兄嫂那样，吕雉清楚地知道现如今西楚国与汉国还在敌对之中，项羽怎么可能送自己回汉国呢？这像是一场骗局，此去可能有去无回。
幸福家园四号楼三单元201、202和三单元的门头房里，盘踞着老马家爷孙四口，每个人都有自己心中向往的桃花源。爷爷马天明希望攒更多养老钱，给窝囊废孙子孙女婿一条后路；孙子马岱想靠自由职业程序员之路，永远大门不出却衣食无忧；姐夫范程远梦想走出家门，成为知名学者；姐姐马桃想要让企业做大做强，创业合力电器…日子一天天过去，每个人都在一本正经地与自己的心愿背道而驰…加上爷爷推拿馆的徒弟金大海、求合租的淘宝主播彭薇薇、楼上楼下形色各异的邻居们，回迁房小区里，上演着一宅家族最普通的琐碎日常，却也是最令人向往的生生不息……
Originally, I was not particularly interested in animation. When I was in high school, my classmates handed me an MP4 with objects from heaven. I set foot on a road of no return. Sure enough, the house was contagious. However, almost all of them watched cartoons directly on various players in the district, such as Thunderbolt and Fashion, and seldom exchanged their experiences with others.
正当小辈们忙忙地会亲访友时，孙铁回来了，然后板栗和小葱就紧张忙碌起来。
"This time we can get that position out of danger, All by one radio station, At that time, we used rifle butts, stones, bayonets and even belts and helmets to fight these rats hand to hand. But I can't, There are too many of them, And you can take care of the earth and not the sky, Either killed by a big mouse or stung by a big wasp, Even some soldiers were anxious and hugged with big rats. And bite it with his teeth, However, this will not change the overall situation at position 149, which is very unfavorable to us. So it didn't last long, Seeing that the position was about to fall, The impression is that a person in our company, Should be a company correspondent, He sent the message directly to the back on the radio. Request the artillery to cover position 149, To live or die with the position in the way of "firing at me", Because I was very close to him, So I could hear what he was shouting, I thought I wanted to die bravely, But in the end, Through the superior order he conveyed, The response we got was to evacuate us to a hillside due north of position 149 in 3 minutes. This means that we have to give up the defense of the main position for the time being. To be honest, He had already killed the red eye, No one wants to withdraw, Watching his comrade-in-arms get along with him day and night be stung to death by a big wasp, I was killed by a big mouse, and I was always left with a dead body. All of them were bent on killing one more one to avenge their comrades. I remember very clearly that I saw with my own eyes that at least three comrades had been bitten off their arms and necks by that big mouse. One of them had his stomach bitten through and his intestines flowed all over the floor, but they were still fighting.
18. The company's speed of solving things is too slow, and the things that have been waiting for solution for a long time cannot be approved.
热情开朗的朱丽珠为刚失恋的好朋友严望佳安排了一场异国的散心之旅，然而对于朱丽珠“一厢情愿”的安排，性格稳重的严望佳却并不领情。萦绕着失恋阴霾和对人生未来的迷茫的严望佳封闭了自己的内心，两人也因此在旅途中爆发矛盾，这次的争吵让两人分道扬镳。随后朱丽珠意外被卷入了一起事故，陷入危机。
程景墨是茶商大家族的继承人，更是个热衷于山水笔墨的逍遥公子，而阮秋水是个精算能力一流、背负父亲债务和家庭重担的坚韧女生。剧中二人的情感及命运正如“水墨”一般，相互交融难舍难分，然随时间的流逝，他们也将面临“水染墨成浊”的迷局困境。
