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.
什么？老板娘顿时大叫起来，没有写完作业，就出来玩？你要是考不上大学，以后就和他一样，一辈子洗碗。
A4 eyes and their appendages
后来赵王辗转得到和氏璧，秦王垂涎三尺，称愿以十五座城池换取。
(2) The client side initiates a connection request to the server side, and mainReactor listens to the ACCEPT event and sends the ACCEPT event to the Acceptor processor for processing. The Acceptor processor takes the connection (SocketChannel) corresponding to this client through the accept () method, and then passes the SocketChannel to the subReactor thread pool.
26岁白羊座的白小琪是一家科技娱乐公司的游戏策划开发员，少女心爆棚的她，总是期待着一份童话一样美好的爱情。可现实往往是残酷的——遭同事嫉妒陷害；和男神擦肩惜过……生活仿佛就是个bug，令她懊恼和沮丧。
1 马赛克
东仁食品旗下的“咖啡王子”奉行着别具特色的经营方略：“花美男方案”，这是人称“会动的画报”的酷哥店长崔韩杰上任后开出的让咖啡店起死回生的特效良方，于是店里清一色的活力四射的美少年，咖啡的浓香中飘出了青涩的青春气息。店员高恩灿大大咧咧令苛责的汉洁难以满意，可是恩灿在艰难的生活面前仍能不失却笑容与勇气又让韩杰渐渐地喜欢上了“他”，可是，为什么和“他”在一起时分明体验到了超越友情的不一样的感觉？韩杰心底埋藏着一个永远也不会让人知道的秘密，他喜欢堂兄韩星的女友柔珠。而韩星深爱的柔珠又一度让韩星伤透了心，因为对绘画艺术的一腔热血，撇下相恋8年的韩星只身去了纽约。孤独的韩星只好把心中的苦恼倾诉到音乐中，还好“咖啡王子”店里笑容可人的恩灿是一位他可以敞开心扉的“哥们儿”。然而真相让兄弟俩跌破眼镜：恩灿竟是一位女孩！为了养家糊口女扮男装。身在异国他乡反而更能领悟到爱有多深，柔珠回到了韩星身边，而此时的韩星却已非当年……
该剧改编自漫画《家兄又在作死》，讲述了聪慧软萌的天才少女时夏，为了寻找失踪哥哥意外来到陌生的仙侠世界，与妹控哥哥魔尊时冬和玉华派太上老祖后池之间发生的搞笑温情的相处日常，自此展开了一段两个哥哥共同“守护”妹妹的爆笑故事。
No. 93 Hrithik Roshan
天海市公安局刑警大队长李大曾的妻子张惠芳已失踪一年多。这天，李大曾突然接到张惠芳的来电，可等他接听时，电话已挂断。他赶紧把电话回拨过去。在海宁集团总经理段沧海主持的海宇花园开盘的新闻发布会现场，突然传来一阵无人接听的手机铃声。人们顺着铃声寻去，原来手机就藏在主席台下面，并且还有一包东西。刑警赶来发现了张惠芳的血衣，另有一张张慧芳和段沧海的合影。正当段沧海苦闷于被人陷害时，传来了在其女儿秀秀的房间发现毒品的消息，而秀秀被警察寻问时不慎坠楼。已经瘫坐在轮椅上的海宁集团董事长苏丽文认定丈夫黄一帆是被人害死的，因而在四处查找真正的凶手，一心要为丈夫报仇。女儿黄婷花却不听她的劝阻，一心爱上了段沧海。负责张惠芳失踪案的女刑警李玫，遇见在海宁集团任保安部经理的前刑警张洋。面对自己心里依然爱着的前男友，李玫压抑着心里的痛苦，警告张洋别做犯法的事。天海市公安局接到省厅的通告，滇南市贩毒分子勾结境外贩毒集团，欲将25公斤毒品走私进天海市。谁是接受这批毒品的下家？李大曾把目标锁定海宁集团。海宁集团一千五百万资
他经过太多的大风大浪，每次都只略施小计便得风平浪静，管他什么尚书总督，我该享乐享乐，该喝酒喝酒，他一度认为，除了那位喜怒不定的神仙，他不畏惧任何人。
20岁的毕天高Tango，艺术天份高，性格散漫随和，是个没有脾气的男生。爷爷是个退休老师，老看他不顺眼，没点男孩子的样，不务正业，不学无术，但是奶奶最疼爱就是他。
Re-visit hot events and try to dig out more complicated social feelings after the news cools down. The parties concerned are not simply praised or criticized, but are described in a more three-dimensional way, which finally shows the far-reaching and cruel influence of this social event.
I am from Xiangyang, Hubei Province, born in 1983. In 2013, I kept crayfish for one year. The two ponds covered about 15 mu. Due to the high density of shrimps, the size of crayfish was close to 8,000 kg. In addition, those who ran to death lost 100,000 yuan. I'd like to tell you about my experience. Novices can learn from it.
下更预计八点。
押してみると突然不思議な光に吸い込まれてしまう。
郑氏郁闷极了，心道儿子太不给老娘争面子了。
令狐冲最擅长两败俱伤的打法，就算是面对任我行、少林方丈、武当掌门，他也有把握，对方死，自己重伤，或者对方重伤，自己轻伤
