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When the client SYN packet arrives at the filter gateway, the SYN agent does not forward the SYN packet, but actively replies the SYN/ACK packet to the client in the name of the server. If the client's ACK packet is received, it indicates that this is normal access. At this time, the firewall sends the ACK packet to the server and completes three handshakes. The SYN agent actually replaces the server to deal with SYN attacks. At this time, the filter gateway itself is required to have strong ability to prevent SYN attacks.3MDT Meeting Places and Facilities……新的一年开始了。这这这这这……罗龙文瞪着眼睛，说不出整话。Plastic bags and fillers, these inconspicuous express packages mixed into domestic waste, will not only increase the cost of waste disposal, but also bring great damage to the ecological environment. Li Li said: "Packaging waste itself, like waste plastics, degrades very slowly, so even if our landfill site is restored in the future, its components will still be in it, which will cause long-term harm to soil and underground sites. The incineration plant is even more obvious, because at a certain incineration temperature, it will produce 2 English after incineration, which will contribute to our air pollution. "何永强微眯双眼问道：会稽那个祭酒，应该是舅舅封的吧？哦，那个人啊……李天宠一想起这些事，又是满脑子焦躁，这事你别沾，那人你也别管，让他们闹去。在未来的某一天，地球上除了Phil Miller，好像就没有别人了？！