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Another main technology to prevent SYN attacks is to adjust TCP/IP protocol stack and modify TCP protocol implementation. The main methods include SynAttackProtect protection mechanism, SYN cookies technology, increasing the maximum half connection and shortening the timeout time. The adjustment of TCP/IP protocol stack may cause some functions to be limited, and administrators should do this work on the premise of full understanding and testing.男子三项竞技是蒙古人自古传承的那达慕。全县最有名的驯马手包勒德欲在全县那达慕上让自己的快马参赛，求丹毕让其三个儿子中的大儿子道尔吉当骑手。但是，二儿子边巴争着要当骑手参赛。在这个不诚实的世界里，我想带你一起追寻真相Manual Focus (MF): Manually adjust the focusing mode, similar to the lens contraction and extension of SLR, so that the focus can be completely controlled by yourself.不等苏岸回答，尹旭一抬头，佯装刚刚瞧见，讶然道：龙将军？没回去养伤？咦，今晚这么热闹？我这可是清静许久了，难得这么多人。Explain that in the OrderPizza method, we do a lot of things, including calling the CreatePizza method to generate a desired pizza, and then doing a series of operations on the pizza. The key point is that Pizza is defined as an abstract class, which means that in the OrderPizza method we don't care what type this Pizza is at runtime, in other words, this is decoupling. The coupling between PizzaStore and Pizza is uncoupled.