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.
《纳米核心》是一部科幻冒险题材的TV动画，故事的舞台设立在一个架空的星球——元星（Birthigin）。在这颗年轻的星球上，人类对未知的憧憬从来不会随着理性或者恐惧而止步,一次次的进化与变革中，人类不断挑战造物主的行为终于导致了矛盾的激化。为各自理想而争斗的人们，以信仰代替笔墨，将和平时代划上句点的同时也点燃了星球的怒火，导致紫雾危机（Purple Fog）爆发。在人类面临生存危机的时刻，精英阶层所开展的N.S.P.计划却一度受挫，直到在“纳米核心（Nanocore）”的介入下迎来“他”的诞生。这个本该是被精英阶层看做人类兵器未来进化方向的存在，却挣脱了自己命运的枷锁，来到一片失去信仰的土地上。“他”在成长中做出选择，在选择中逐渐成长，元星那浑浊的未来也因此而发生改变。
After the MDT meeting, all the database entry work needs to be completed (if not completed during the meeting).
香荽笑眯眯的，眼睛弯成月牙，道：别瞎说。
说话间，板栗三两下已经把箱子外面的木条都除了。
He used to work in an investment and finance company and started to leave office for two years. The company did not release him until a year ago. He thought that this was his last involvement with his old employer. On Tuesday, I suddenly received a notice from the police station to investigate.
三个年轻足球运动员在一个虚构的英超俱乐部的不幸遭遇。
REJECT: Reject the data packet from passing through, and when necessary, send a response message to the data sender. The client will receive the rejected message as soon as it requests.
故事从民国二十六年的北平戏班开始，白云秋随病重的师傅白玉心前来搭班谋生，受尽人情冷暖，幸而有善良的柳凤英照顾帮助，两人遂产生深刻的友情。白玉心和凤英的琴师唐师傅（天鹏）过去有一段未完成的情感，死前终于得到他的原谅，并视白云秋为徒弟照顾收容。凤英的师姐花艳霞一向爱慕唐师傅，但永远无法取代白玉心在唐师傅心中的地位，感情受挫的她为了救戏班众人生计，无所谓的便嫁了韩会长，却也造成唐师傅的更不谅解。性格尖锐圆滑的花艳霞和强硬固执的唐师傅人生观完全抵触，事事冲突，然而多年的相处，之间有着复杂的情愫
因为，虽然实际控制了江东。
纪念摄影师布罗克·布伦纳哈塞特以其在维多利亚时代的爱尔兰为已故者拍摄照片的技巧而闻名。当一系列谋杀威胁玷污布洛克的声誉时，一名侦探把他拖进了对都柏林犯罪集团的调查。
For accelerated taxiing before takeoff, pressing the PAGE UP key will accelerate (just press it), whereas PAGE DOWN will slow down.
毕竟到之后这一支孤军深入的越军就陷入了渑池汉军与荥阳守军的包夹之中，想要安全撤出，难度就会大大增加。
ElfArmy is an army of elves; ElfCastle is an Elf Castle; ElfKing is the king of elves.
温州女人春枝只身闯荡京城，来到何教授家当保姆，她此行的真正目的是为女儿择校。春枝生性活泼，而何教授则古板刻薄，两人经常为琐事发生分歧，由于何妻不久前在家中自杀，他目前正处在巨大的痛苦与自责中。在海外的女儿田田因个人婚姻亮起了红灯，无暇顾及同样痛苦的父亲，春枝正是在这时踏进了何家的大门。面对一个农村女人，身为艺术史教授的何淳安简直与春枝没有一点共同语言，琢磨着怎样将她赶走，而春枝则想兑现对女儿的承诺，先在北京站稳脚跟。最终，同样因为对各自女儿的爱，让两个本不能相处的人完成了对方的心灵救赎。
If you need to undo it, you can use memos to implement it and restore it to the previous state.
边防检查站在一次侦查办案中，发现了一农妇运送的核桃里藏有毒品。经过边防检查站官兵的努力，嫌犯沈冬雪对自己的犯罪行为供认不讳,并积极配合警方抓捕了毒贩。当大家了解了沈冬雪不幸的遭遇后，边防官兵自发进行捐款，柳佳佳通过媒体筹集了大量善款，沈冬雪的孩子得到了救治。楚旭涵是一名年轻的舞蹈家，有着美好的婚姻和家庭。当遭遇了爱人的背叛，为了麻痹自己，她将全部精力投入到舞蹈比赛的备战中，但常年的腰伤使她无法正常训练。就在她人生低落的时候误入迷途，以毒品麻痹自己。楚旭涵进了戒毒所，开始积极生活，配合警方抓捕毒贩，顺利戒毒后与爱人重归于好。楚旭涵成了全国的禁毒大使，在她的鼓励下，戒毒所的戒毒人员积极抵制毒魔，重获新生。她们的故事警示人们：珍爱生命，拒绝毒品。
(3) Brand image: The product image is consistent with the temperament of the spokesperson. The match between brand personality and spokesperson is the key to optimize the communication effect. Only when the star's personality is consistent with the brand and the personality is accurately connected can the unique position of products and enterprises be effectively strengthened in communication and identification.
