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The firewall sets the SYN forwarding timeout parameter (the firewall for state detection can be set in the state table), which is much less than the timeout time of the server. When the client sends the SYN packet and the server sends the acknowledgement packet (SYN + ACK), if the firewall has not received the acknowledgement packet (ACK) from the client by the time the counter expires, it sends the RST packet to the server to cause the server to delete the half connection from the queue. It is worth noting that the setting of gateway timeout parameters should not be too small or too large. If the setting of timeout parameters is too small, it will affect normal communication. If the setting is too large, it will also affect the effect of preventing SYN attacks. This parameter must be set according to the network application environment.Serbia: 650,000在宇宙某处有一颗叫K10星云的迷你星球，有一群可爱的小怪兽生活在这颗星球上。小怪兽们在一起嬉戏打闹。某一天，小比格来到了这颗星球，故事就此开始了！The landlord refuels moreMove讲述一个鳏夫父亲Al和他的青少年儿子Fin都爱上了Evelyn——前脱衣舞女王，现在从事花艺职业。当他们发现要竞争同一个女人后，旧疮疤也再次被揭开。只是因为明教教众大多出身卑微，对抗暴政，行事诡秘，他们就是魔？就必须背负骂名，任由名门正派收割人头？从前的悲剧，从前的艰辛，从前遭遇的一切丑恶，这些并没有让张无忌变得冷血、残忍，反而让他格外的热爱生命，坚持正义，真正的正义。