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.
梅子寒忙躬身应是，他早就心痒痒了，因先前带人去了龟巢，故而没赶上这边，正眼馋呢。
(Guess) Abnormal Triggering Probability = Abnormal Original Triggering Rate * (1 ± difference between epidemic disease grade and object grade * 5%) * (1 ± heteroclonal antibody%)
Three flashes said, "Our ship is advancing backward";
本剧以刀客八墩的爱恨情仇及其多舛的命运和无奈悲凉的人生轨迹为线索，讲述了一个具有浓郁的西部大漠风情粗砺、豪迈而悲壮的故事。 逞强好胜、剽悍野性的八墩是靠刀头赌博为生。年轻漂亮的寡妇甘草深深地爱着他。而甘草与儿子旦旦又靠货郎“骆驼”养活，“骆驼”也深爱着甘草。甘草和八墩相爱，让“骆驼”心中十分酸楚和失落。
秦淼坐在葫芦身边。
该剧讲述了天才网球少年龙马和队友们，在网球梦想与友情的激励下突破自我，从单打独斗到逐渐体会队友甚至对手的意义，最终领悟了网球运动真谛的故事。
现在汉国的情况，只能是针对一个目标开战，否则会难以为继的。
(You must wear corrective glasses and carry backup glasses when flying. )
该剧讲述了一位当地青少年揭开她家庭秘密的过去，并在南非一所高中的复杂世界中航行。
After reading a book "Deliberate Practice" today, I suddenly thought of a text "Oil Seller" that I learned at first.
关键时刻，缠流子意外得到父亲制作的黑色神衣，由此战斗力大增。连番激烈的战斗在本能字学园展开……
然后，他上前走了几步，对门口脸色惊愕的少女说道：姑娘，不好意思。
Schedule: Determines the execution time and frequency of the event (note that the time must be the future time, and the past time will make mistakes). There are two forms: AT and EVERY.
本剧以明朝晚期的“妖书案”、“诅咒案”、“梃击案”、“红丸案”、“移宫案”等几大疑案为线索，以立储、皇权交替为关键点，讲述了明朝万历、泰昌、天启年间二十年中围绕宫廷的权力斗争，表现出君臣、父子、夫妻、同僚在权力面前交错的党争关系及体现出来的复杂情感，描绘出明朝危在旦夕的夕阳晚景。该剧着重暴露了明朝权力交替制度的弊端及吏治腐败、党派斗争、宦官专权、特务横行等一系列政治乱象，批判了黑暗的宫廷斗争，并讽刺了大臣们的愚忠。与此同时，用俯视的角度向观众展现了皇室的家庭生活，及夫妻之间、长幼之间的情感纠葛。扑朔迷离的疑案、明争暗斗的政局能吸引众多观众，而其中表现出的真实而复杂的人性，更能让人深思。
Michael Emerson将回归CBS，主演正在开发的剧集#Evil##邪恶#！
Public class MyBridge Extensions Bridge {
When they first graduated, they were both short of money, so they rented their house outside Beijing's Fifth Ring Road. It takes four hours to commute every day, which is very tiring.
一个患有先天疾病却怀有“马拉松梦”的少年肖尔东（张宥浩 饰），一个固执逼迫儿子预习“盲人生活”的出租车司机父亲肖大明（王砚辉 饰），互不理解的父子俩，却在一场马拉松比赛中“互换身份”，并肩站在了起跑线上……影片通过对“命运”持有不同态度的一对单亲家庭父子，讲述了一个用爱向阳而生的故事。
