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《贝茨旅馆》(Bates Motel)获得第4、5季预订，共20集，第5季2017年开播。最新两期的《武侠世界》连载了《笑傲江湖》的第七章授谱和第八章面壁。Pos = 0;In this environment, silence has almost become an act of assisting in crimes. Therefore, although CSO people adopt a "non-violent and non-cooperative" attitude towards sharing information, we still try to collect some information through some insider meetings and interviews to understand how security experts originally helped these victimized enterprises to build defense mechanisms. In this way, we have summed up the following tips for readers and friends to deal with DDoS attacks.111111111111111111111111111111If 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.? ? ? ? ? ? Yum remove docker docker-common container-selinux docker-selinux docker-engine