A TCP connection is a quad, and a connection is uniquely determined by the source IP, the source port, the destination IP and the destination port. Therefore, if C wants to forge the packet from A to B, it should fill in the above-mentioned IP header and TCP header with the source IP, source port, target IP and target port. Here B is the server, IP and port are open, A is the target we want to attack, IP certainly knows, but the source port of A is not clear, because it may be randomly generated by A. Of course, if we can find out the rule of generating source port for common OS such as Windows and Linux, we can still do it. In addition, we can step on the connection port of Car A through a large number of controlled hosts.
三十年代初，南方某城市有个贫民区叫猪鸡里，住的都是被有财有势的人压逼得猪狗不如的可怜人。为了达到自己不可告人目的，城中首富庄承和一帮达官显贵要强行拆除猪鸡里，在猪鸡里长大的苦孩子毓儿和庄承的养子留洋博士庄若龙不打不相识，在保护猪鸡里的过程成为了一对欢喜冤家，二人情愫渐生。但是这段感情却注定要经受考验，因为他们是仇家，因为有一连串的大阴谋要陆续登场。在国恨和家仇之间，毓儿和庄若龙发现个人的恩怨已毫无意义，他们放弃了报仇计划，一起连手对付勾结日本人的朱将军等人。一个将计就计的传奇故事，一段至纯至真的浪漫爱情，就这样伴着大时代的风雨飘摇，隆重登场......
我们来到这，住持命闲人都规避了，他既然硬闯进来要见我，定有非常事。
《旧时光里的小欢喜》是由创酷影视出品的校园励志电影，由导演李驰川、罗嘉琪执导并联合新生代演员李文智，周瑞睿，王钰奇，郑雅珉等共同主演。 该片讲述在高中的最后一学期，花晨越做了一场梦，梦中刚和心动的人有了片刻甜蜜，梦境戛然而止……当天班里转来一名学生——陆九渊，竟然就是她梦中的人！故事就此展开…该片取景于盐城，拍摄周期为十天，全程使用艾丽莎电影机拍摄。
Typical plot: Because I have no money, I spend every day in the bathhouse with rice and live on kelp soup and eggs. Will sing and wriggle along the street at night and fart loudly.
该剧讲述了为帮被控涉嫌贩运毒品的缪兰洗刷冤情，年青有为的律师韩绪与多位魅惑十足的红罂粟女郎，陷入了一场生与死、正与邪的较量。
Soul: Diregi's Phantom Pearl
拆二代李大富一夜之间从城中村村民跃升为富豪阶层，但也带来新的苦恼----老爸勒令他找一个高学历高颜值的老婆来“改变家族基因”，实现从土豪到贵族的升级，但李大富无法判断潜在女友是否只是为房子而来，于是将房子低价出租，试图通过近距离的同租生活物色合适伴侣，由此阴差阳错引来了五个来自全国各地的90后。他们怀揣靠谱或不靠谱的梦想，一头扎进珠江新城，准备在此燃烧他们最美好的青春，上演“追梦者联盟”的动人故事。
女扮男装，偷入军营，触犯军规。
The world-famous Chinese national brand "Dowie/DoWin" has a moderate price of about 300-400 yuan.
Fingers slide on the screen
Telecommunications
In our country, we can see that there is a cloud manufacturing service platform for complex aerospace products developed by the Aerospace Science and Technology Group, which is connected to various institutes and bases under the Group and has rich manufacturing resources and capabilities. The cloud manufacturing service platform of China Railway Group's group enterprise for rail transit equipment has opened up the research and development, design, manufacturing, repair and service of rail vehicles, construction machinery, mechanical and electrical equipment, electronic equipment and related components. Cloud manufacturing platforms for small and medium-sized enterprises have also appeared in the fields of equipment manufacturing, luggage, shoes and hats.
"There are close combat, But that was later, At the beginning, They rush up, Let's fight, Because the speed is too fast, Most of them can't be hit, Only a few machine guns were shot down by strafing. It is too difficult to hit an automatic rifle with a single shot, Fully automatic shooting and uncontrollable, Fortunately, in the end the mines blew them up. I don't even know what they are, However, no one can see that landmines play an important role. In order to be able to withstand the possibility of a similar attack, The company commander sent four comrades to re-mine, We provide cover up there, As a result, they had just finished their cloth and were ready to come back. That is, the time of the front and rear feet, Another batch rushed up below, This time the number is much higher than last time. I took a look at it, It is estimated that there are at least 30, When the reaction comes back, They rushed up to the four comrades, The two sides mingled, Dare not throw grenades, Afraid of bombing one of his own, Shooting is also restricted, Still afraid of accidental injury, With such a delay, three of the four comrades were tackled by those things, and the remaining one was quick in legs and feet. I remember he first shot with his backhand and knocked out the one closest to him, and then he wanted to save people. Besides the company commander, there was also a platoon officer on our side. The platoon officer shouted to death with a broken gong voice, shouting only two words, "come back!" , probably out of instinct plus the role of command, he hesitated for a moment and turned to run back, and he ran back, is to pick up a life, but the other three comrades, born by those things to tear, some bit off the throat, some was torn off the arm
9-7 Administrators: Administrators are special users. Write a class named Admin that inherits the User class you wrote to complete Exercise 9-3 or Exercise 9-5. Add an attribute named privileges to store a list of strings such as "can add post", "can delete post", "can ban user", and so on. Write a method called show_privileges () that displays the administrator's permissions. Create an Admin instance and call this method. ?
历经艰辛刚摆脱非洲土人的追杀，飞鹰Jackie（成龙）就接到伯爵的急电，要其迅速赶到西班牙。二战末期，知道自己来日不多的德国纳粹把在欧洲抢掠所得的数万吨黄金隐藏在了非洲撒哈拉大沙漠一个秘密基地，伯爵急电Jackie，正是要其配合冷艳的考古专家Ada（郑裕玲）再赴非洲寻找这批黄金，途中，藏金副官的外孙女Elsa加入寻宝队伍。
Can't recognize one's own problems
Chapter VII Supplementary Provisions
Compared with the example of electric lights, file uploading differs in that it will now face more complicated conditional switching relationships. In the example of an electric lamp, the state of the electric lamp is always from off to on and then to off, or from off to low light, low light to strong light, strong light to off. ABCA always seems to follow the rules, so even if you don't use the state mode to write the light program, but use the original if, else to control the state switching, you won't lose yourself in logic writing, because the state switching always follows some simple rules.
