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Monomer mode provides a means to organize code into a logical unit, and the code in this logical unit can be accessed through a single variable.快点，咱到京城找爹娘。　　于是哈金斯组织了一群非常有篮球天分的黑人学生作为西德州联队的核心，开始了他艰苦的光荣之路。这些黑人球员连真正的篮球与街球的区别都不知道，而且他们对种族问题极度敏感，可是这些内部问题与外部的大环境相比根本算不得什么，整个学校的人从上到下都认为哈金斯疯了。Shaanxi ProvinceHowever, in the actual use process, Rules are often defined through "tables" as operators. The reason why iptables are introduced according to the above process is that it is easier to understand them from the perspective of "checkpoints" and from the perspective of entry. However, in order to understand them more smoothly in actual use, we also list the relationship between each "table" and "chain" here.“解忧奇贱店”是一个可以典当烦恼的当铺，每个当品背后都有忧愁的人和奇葩的事。流浪汉仇小丫（田松饰）、酒吧歌手杜琪嫣（蒲萄饰）、黑社会大白（母焌成饰）组成“三贱客”，开展了特殊的典当业务——“烦恼回收站，当完帮你办”。他们替人解忧，收入不菲，乐在其中。Figure 1 is an example of a JOP attack. In this example, the attacker's aim is to execute a system call "int 0x80" to open a new command line window. To do this, an attacker needs to modify the contents of the eax register to "0x0000000b" and the ebx register to the string "/bin/sh" before "int 0x80" is called, and the ecx and edx registers must point to the value "0x00000000". Suppose the value "0x0000000" and the string "/bin/sh" can be found in memory when the program is running. An attacker needs to construct the value "0x0000000b" himself. However, for the value "0x0000000b", when an attacker saves data to the stack through a buffer overflow, the "0x00" byte will trigger the system to terminate the read operation. This example specifically describes how the attacker uses the existing code snippet in the program to modify the value of val pushed into the stack by the attacker step by step from "0xffffff0b" to the value required by the system call "0x0000000b", thus implementing JOP attack. The following are the detailed steps of the process.