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If an attacker sends a large number of SYN requests with fake source addresses, the server side will consume a lot of resources to handle this semi-connection, and saving traversal will consume a lot of CPU time and memory, not to mention retrying SYN + ACK on IP in this list. The end result is that the server has no time to ignore the normal connection request-denial of service. If you look at the SYN_RECV status on the server with the netstat-an command, you can see that there are a large number of connection states that are "SYN_RECEIVED"6. Understanding of Command Mode然后由寡人来想办法通知汉王就是了。　　乐团新来的第一小提琴手陈子峻是李少蓉的学弟。在学校的时候，他就苦苦追求了少蓉三年，后来因为施敬的出现，子峻不得不放弃了她，并毅然到美国求学。这次来到乐团，可以说有80%是为了重新追求心上人　习惯了“狼捉羊”的“套路”，可曾想象过狼与羊和平相处的温馨画面？据原创动力副总经理蔡瑞琼在发布会介绍，2019年寒假即将和观众见面的《羊村守护者》也许可以实现这个愿望。这次新作品会更加注重情感的刻画，兄弟情、友情、父子情、亲情，通过高质量的情节和内容，会让更广泛的年龄人群，产生情感共鸣。