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四百年前的嘉定古城，积雪未融，寒风凛冽。但在这深冬的尽头，春天带来了暖暖的气息。村中的各个角落里响起了爆竹声，小孩子们在自家门口玩耍，大人们则忙着新桃换旧符，迎接新一年的到来。过了三十是初一，一大早，嘉定名士唐时升端坐家中，而远迩学子相继赶到唐家，向老师拜年。老人不在乎来客的富贵与贫寒，只拿出自家所种的菜做成了贺年羹，让他们品尝着这个最朴素的味道。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).　　国家安全局特种部队培训出的特工小组小葱沉声呵斥道：什么就该这样？你别乱教她。Blue 120% +14.28%