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严克听了何老将军点将的经过，只觉热血沸腾。这是怎么回事？陈启疑惑道。停播一年后，《废柴联盟》第四季回归荧幕，“格林七侠”全员归来！ 本季从夏季结束后的新学期开始说起，由七位主角组成的学习小组再次面临选课问题，要找一门大家都能上的课并非易事，Jeff（乔尔·麦克哈尔 Joel McHale 饰）煞费苦心，为大家争取“冰淇淋史”课，这举动看似热心，实则出于想提前毕业的私心。“毕业”意味着学习小组的解散，众人纷纷对Jeff感到失望。Abed（丹尼·朴迪 Danny Pudi 饰）对此尤其不能接受，他又一次进入自己的幻想世界。 本季的一大看点是Troy和Britta的恋情，Troy该如何平衡女友Britta和好基友Abed之间的关系？上一季中囚禁了院长，差点毁了整个学院的昌，以患了失忆症的状态再次回到校园里来，他又会作出什么样的疯狂举动……　　明朝年间，庶女罗十一娘虽地位卑微却极有主见，认为女子眼光不应局限于内宅格局，她希望能凭靠精湛的刺绣技艺争取所向往的自由人生。意外嫁给永平侯大将军徐令宜后，她用乐观积极的心态对待身边的每一个人，依靠努力收获徐家上下的信任，重新执掌中馈。徐令宜被十一娘的种种美好品性而吸引， 继而为之动心。两人几经周折情愫暗生，先婚后爱相知相许。在丈夫的支持下，十一娘开绣坊仙绫阁，努力传承刺绣技艺。　　而永平侯徐令宜，为维护家国安宁，改善民生，力挺开放海禁，经历重重困难。在徐家面临抄家灭族的滔天巨祸之时，夫妻齐心合力化解危局，成功护徐氏一族周全，最终促成开放海禁，至此海上贸易繁荣昌盛，沿海百姓安居乐业。夫妻二人情投意合，相信彼此，坚持所爱，一起面对人生风雨，书写了属于他们的传奇人生。　　该剧改编自吱吱小说《庶女攻略》。这是一部关于医生专门从事疼痛管理的医学剧，把医生寻找病人神秘疼痛的原因描绘成一场惊心动魄的追逐，几乎就像一名侦探在未解决的犯罪背后追捕犯罪者。老管家把手一缩，讪笑道：这不好吧。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.