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单口喜剧演员、演员、编剧和播客“Congratulations”的主持人克里斯·德埃利亚回归，带来他最新的 Netflix 喜剧特辑《克里斯·德埃利亚：幸福童年》。尽管和其他喜剧演员相比，克里斯·德埃利亚是个异类，与支持他的父母一起过着常规的生活，但他仍会在公众场合对宝宝大吼、将不合适的照片空丢给飞机上毫无戒心的人、提醒别人海豚性侵案（请在谷歌搜索）的潜在威胁。《克里斯·德埃利亚：幸福童年》在明尼阿波利斯州州立剧院录制，于 2020 年 4 月 14 日在 Netflix 上面向全球首播。谢广坤最近一直在反省，他觉得自己从小到大一直是个倒霉蛋，不管他做什么事，都会遇到意外，最后把自己弄得焦头烂额……原来不过是把她放到这里来，就象把小朋友放到幼儿园，找一个看管的地方，没有想到这个妹妹给了自己一个惊喜。AppleTV的NBA球星题材剧《昂首阔步Swagger》灵感来自凯文·杜兰特,KevinDurant年轻时的打篮球经验,由ReggieRockBythewood负责剧本及执导。《昂首阔步》将会探索年轻篮球员﹑他们的家人及教练在梦想﹑各种野心﹑机会﹑腐败上踩钢线。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.要是让人听见了会笑话的。