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汪尚书精神一振，点头道：有理。为何如此狼狈。7-4 attack, 5-6 end up together for the same reason as above.　　这是一部根据真实故事改编的打黑力作，取材于哈尔滨公安局打击以乔四为首的黑社会犯罪团伙的真实故事。十七世纪三十年代，为了躲避势力日益强大的准噶尔部的威胁，蒙古族土尔扈特人西迁至俄国境内伏尔加河流域游牧。伏尔加草原土肥水美，远离战争，使饱经战火洗礼的牧民们终于找到了安静和平之地。但谁也没料到他们很快又坠入俄国沙皇的恐怖统治之下……Both these attacks and SYN flooding target the victim's TCP application and can interrupt the victim's service at much less cost than brute force flooding packet methods. However, SYN flooding is very different from other TCP spoofing attacks. SYN flooding attacks the services of the new connection without affecting the established connection, while other spoofing attacks break the established connection and cannot block the new connection from the beginning. SYN attacks can be stopped only by modifying the initial handshake program, while other spoofing attacks require checking every piece of data throughout the connection life cycle. What SYN flooding and other TCP spoofing attacks have in common is that they all depend on the attacker's ability to send IP packets that disguise the source address, while the same way to defend them is to deploy more address filtering or use IP Security Protocol (IPsec).18