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During the establishment of a tcp connection, If the server returns syn and ack messages, The client does not confirm it for some reason. This is because the server needs to retransmit the syn + ack message and wait for the client's confirmation message until the tcp connection timeout. This state of waiting for the client to confirm the connection is usually called a half-open connection. The half-open connection will be kept in the connection table of the server until the connection is disconnected.Comparing DoS Attacks with DDoS Attacks但是——。本剧继续将故事扎根农村，剧情从主人公万大山（郭冬临饰演）建奶站和给父亲当媒人说开，以万大山与谷雨（句号饰演）的矛盾冲突展开喜剧情节，通过结婚、奶站建成等四件喜事，渲染过年的喜庆气氛、用幽默的情节和包袱为观众贺岁，这一回闫学晶成了郭冬临的家里人、雷恪生则成了他爹。　A story of survival set 20,000 years ago during the last Ice Age.很快，周星河抬起头，脸上飘乎乎、不知所以的神情不在了，目光变得坚定。Time of sale: 15th of February 2019