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Is there a problem with your cell phone? Find Brother Guo!Physically speaking, firewalls can be divided into hardware firewalls and software firewalls.小心心 -- 群星183. X.X.41The attacker forges the source ip address of the syn as the ip address of the target, and the server response is sent directly to the targetFor the convenience of the experiment, we directly use the functions in libc.so.6 as the attack functions to be executed. This is a C program runtime in Linux, which holds a large number of available functions and contains system ("/bin/sh"). Therefore, we can use ROPgadget tool to obtain the code fragments that we can exploit, and use pwntool to exploit the vulnerabilities of vulnerable programs, thus achieving our attack purpose, that is, running system ("/bin/sh"). In order to facilitate the subsequent use of ROPgadget tool to find gadget and attack, it is necessary to copy the libc.so.6 file to the operation directory. First, use the "ldd" command to view the source directory, and then use the "cp" command to copy it to the operation directory.现今社会中千案无日无之，老千为害往往杀人于无形。欧阳震华、古巨基、傅明宪等组成<皇家反千组>，执掌反千大旗，全力粉碎老千骗局！重案组ＣＩＤ成国栋（古巨基）因一次鲁莽冲动，被调往警队中最不起眼的「反千组」。栋不忿，处处与新上司江一菊（欧阳震华）作对。适栋崇拜之督察林志豪（尹扬明）疑欠下巨债，被老千迫至走投无路，吞鎗自尽，栋决为豪报仇，一改以往的态度，逐渐投入「反千组」的工作，并与新组员温家宝（傅明宪）展开恋情，更与菊全力合作反千。菊为人吊儿郎当，工作时似不上心，其实是成竹在胸，谈笑用兵。他精通各样赌术，对千术亦了如指掌，自有一套办案方法。菊虽主管「反千组」，却仍是沙展一名，令拍拖六年之女友陈维琛（陈法蓉）甚为不满。琛迫菊进修英文以争取上位，菊但觉苦不堪言。时栋与菊在几番调查下，终找到害死豪的真凶，遂暗下布局，要将之服法……