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They are described in detail below.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. TCP is a reliable protocol, and messages will be retransmitted at this time. The default number of retries is 5. The interval time of retries is doubled from 1s to 1s + 2s + 4s + 8s + 16s = 31s respectively. After the fifth time is sent out, it will take 32s to know that the fifth time has timed out, so the total is 31 + 32=63s.剧情讲述故事中的女孩儿从一个小胖子逆袭了，变瘦变美了，变成了一个女神，但她心里依然保持着最初的初心和善良，脱胎不换骨的故事。60年代中期,岳军与李银虎,王元亮等几位同乡应征入伍.岳军热爱军营,努力学习,苦练军事技能,成为同批兵中的佼佼者.岳军的接兵干部杨兴荣在与他多年的军旅 生涯中,因观念上的差异和工作上的分歧,常有冲突,两人相互较劲,并在矛盾中成长进步,在竞争中加深友谊. 岳军以过人的胆识,执着的追求,非凡的智慧,不 断化解与战友之间的矛盾,工作中的困难和人生中的挫折,带领和激励官兵为我军的建设发展做出了积极贡献,终于从排长到集团军军长,历经十一级台阶,成为我 军的一名将军,也成为战友心目中的骄傲.喜欢斑马和巧克力的楚元，从外表看起来和同龄人没什么两样，是个可爱、招人喜欢的孩子。某一天楚元被诊断出患上自闭症，妈妈庆淑听到这个消息后晕了过去。但是醒来后的庆淑发现楚元在跑步上有着超乎常人的天赋，希望至少在跑步的时候自己的儿子不会输给别人，抱着这种希望她开始训练儿子。As for us, through a shortcut of knowledge, just a few days of experiences came to teach us these facts, that multiple species of plants can be used as dyes and that plants carry most of the pigments. However, most of these pigments are fragile and break down easy over time, or once the fabric is washed. Only pigments that well resist oxidation make up valuable dyes.