Note: What is the difference between appearance mode, adapter mode and agent mode?
Now, let's imagine why these "checkpoints" are called "chains" in iptables. As we know, The purpose of a firewall is to match "rules" for passing messages, Then execute the corresponding Action, So, when the message passes through these checkpoints, You must match the rules on this level, However, there may be more than one rule on this level, But there are many rules, When we put these rules in a chain, A "chain" has been formed. Therefore, we imagine each "checkpoint" as shown in the following figure. In this way, it is more appropriate to call them "chain". Each message passing through this "checkpoint" must match all the rules on this "chain". If there are qualified rules, the corresponding actions of the rules will be executed.
SYN attack is a kind of DOS attack. It takes advantage of TCP protocol defects and consumes CPU and memory resources by sending a large number of semi-connection requests. SYN attacks can not only affect hosts, but also harm network systems such as routers and firewalls. In fact, SYN attacks can be implemented as long as these systems turn on TCP services no matter what systems are targeted. As can be seen from the above figure, the server receives the connection request (syn=j), adds this information to the unconnected queue, and sends the request packet to the client (syn=k, ack=j+1), then enters the SYN_RECV state. When the server does not receive an acknowledgement packet from the client, it retransmits the request packet and does not delete this entry from the non-connection queue until the timeout. With IP spoofing, SYN attacks can achieve good results, Typically, clients forge a large number of non-existent IP addresses in a short period of time, SYN packets are continuously sent to the server, and the server replies to the confirmation packets and waits for the confirmation of the customer. Since the source address does not exist, the server needs to continuously resend until it timeout. These forged SYN packets will occupy the unconnected queue for a long time, normal SYN requests will be discarded, the target system will run slowly, and in serious cases, the network will be blocked or even the system will be paralyzed.
Table 2
第1集，仲村亨饰演意大利厨师，还有崎山翼共演，玉城蒂娜扮演瑜伽教练，森田甘路出演一名游戏宅。
首先是张家的佃户雇工，飞奔向山外，要去告诉郑家，沿途又不住地告诉人，那些在田间劳作的庄稼汉和家中忙碌的媳妇婆子、学堂里读书的娃儿，都纷纷赶到村路旁等着。
Now let's make some improvements and go directly to the code:
Historically, intelligence gathering has been left to spies who risked their lives to sneak into a building (an organization, an embassy), steal documents, files or hard disks, and then run away. The more hidden these tasks are, the less likely they are to disturb the owners of these target files, and the better. Then, analysts or sometimes decoders decode the information so that military leaders and strategists can improve their attack plans to ensure maximum attack power.
BBC最新纪录片，一个家族，40种不同面孔！将有非洲狮、虎、美洲豹、金钱豹、猎豹、云豹、雪豹、美洲狮、猞猁、豹猫、虎猫、渔猫、黑足猫、兔狲、薮猫、沙漠猫…等等很多野生猫科动物纷纷出镜
两名被栽赃的毒贩为躲避追杀，混上了一辆救护车。夜间迷路，燃油耗尽，天亮被困雪山高原。杀手逼近，却同样被困雪山、生命垂危，究竟该何去何从？双方交战身份被识破，究竟谁才是幕后凶手？谁又会迷途知返？
没换来书生一个子儿的应答，定睛一看，原来晕过去了。
相传清朝末年的皇族端王，曾收敛了一大批财宝并隐藏起来，后因他得罪慈禧太后被满门抄斩，只留得一个幼女碧云格格随唱堂会的“庆生班”逃走。从此，民间和各方势力都想尽办法，欲寻获这批财宝。
之后，勒维恩前往芝加哥企图找到一份工作，却在面试之后惨遭拒绝，之后，一无所获的他回到了格林尼治村，继续回到曾经兼职的小酒馆打工。熟悉的场景，熟悉的音乐，熟悉的氛围，勒维恩经历了许多，却又好像什么都没有发生过。
Do you admire the old man in this article? Why?
FBI获悉有一伙恐怖分子准备在美国小姐选美时制造恐怖袭击，为挫败这次阴谋，FBI决定派卧底参加选美。任务自然落到了格雷西身上。经过造型师的巧手，格雷西令所有人都眼前一亮，她的“假小子”性格自然也令到这次任务笑料百出。
惊险紧张的剧情设计加上演员精彩的表演，《与谁共眠》一定能让你“享受22集的战栗时间”。云，时刻在姐妹二人头顶笼罩；罪证，线索，随时令知情者的生命终结……
玛塔·哈丽是历史上最富传奇色彩的女间谍，本名叫做玛格丽塔·麦克劳德。在被丈夫抛弃后，玛格丽塔连唯一的女儿也无法相见。她没有钱，只能露宿街头。为了活命，她决定化名玛塔-哈丽，成为一名艳舞女郎。不到几年时间，她在欧洲上流社会已经颇有名声， 经常出入顶级豪宅里的各种聚会，在那些地方继续表演艳舞。1913年，在第一次世界大战爆发之前，她的舞女事业开始走下坡路，生活也发生巨变。作为多个国家多名军政要员的情妇，她接触到大量敏感情报，在一战期间成了著名的双重间谍。玛塔-哈丽的故事曾多次被改编成影视节目，其中最有名的要数著名影后葛丽泰-嘉宝在1931年演出的电影版本。现实生活中，出生在荷兰的玛格丽特塔-麦克劳德曾经有过娇生惯养的富裕童年。13岁时，她的父亲不幸破产，与她母亲离了婚。母亲死后，玛格丽塔便和教父一起生活。18岁那年，即将启程前往印度尼西亚的军官约翰-麦克劳德登报相亲，她最终被他选中成为妻子。两人婚后育有两个孩子。不久后，这场婚姻便破裂了。约翰是个酒鬼，性格暴虐，年纪比玛格丽塔整整大了20岁，而且在外面还有情妇。玛格丽塔决定离开约翰，和另一位军官一起生活。这段时期内玛格丽塔一直都没有离开过印度尼西亚，并且在那里学会了跳舞。在丈夫约翰的命令下，玛格丽塔被迫回到家中继续忍受家庭暴力。她的一个孩子不幸夭折后，约翰抛弃妻子回到了荷兰，将女儿也一起带走了。玛格丽塔从印度尼西亚来到巴黎，以模特身份进入当地马戏团工作。1905年，整个西方社会都迷上了现代舞，玛格丽塔抓住机会以玛塔·哈丽的艺名登上舞台，开始了近十年的艳舞女郎生涯。她曾经很享受自己的成功，但是到了1912年，她的事业开始滑坡。在这期间，玛塔-哈丽除了跳艳舞之外，还是个高级妓女。她和许多国家的军政要员上过床，有些人甚至长期将她当做情妇来包养。战争期间，她很罕见地拥有自由进出多个国家的特权。她频繁到访不同国家的行为引发了有关方面的怀疑。1916年，她被伦敦警察厅逮捕并遭到审讯。在供认自己是法国政府的间谍之后，英国方面释放了她，但持续对她进行监视。1917年，法国间谍机构截获了一条来自德国的消息，其中提到一个代号「M-21」的德国间谍正在帮助德军收集重要情报。法国方面经过调查后确认玛塔-哈丽就是这个代号「M-21」的德国间谍，随即将其逮捕。同年，她遭到处决，年仅41岁。
Physical Attack Power Treasure Pearl
顾涧等人也是一般行事。
Q: According to the evidence we have, you still have something to hide from us. You must answer truthfully. A: When I stole the family for the second time, I found that the wedding photos of the hostess were very beautiful, and I wanted to rape her. On the way back, I said that one day I raped this woman and robbed this family. When Fei County successfully robbed the Volkswagen Hotel for the first time, I, Zhang Wenfeng and Wang Jiying were sitting on the bus back to Wennan Town in Mengyin. The three of us secretly discussed to rob the hotel one day, rape the woman and kill them. Later, when Fu Gang slept at my house all night, Wang Jiying did not know what he had said to him. Fu Gang had to follow us. At first, we discussed throwing the bodies into the water after killing the people. Wang Jiying said that the water was too shallow to hide. I said that if we didn't kill the people, we would hide the people in a nearby cave and dig a pit to bury them. No one found them for a while. At that time, I also handed the handcuffs I carried to Wang Jiying and asked him to handcuff the male host.
