CPU不仅仅在程序访问数据段和堆栈段的时候进行权限级别检查,当程序控制权转换的时候也会进行权限级别检查.程序控制权转换的情况很多,各种情况下检查的方式以及涉及到的检查项都是不同的.这篇文章主要描述了各种代码控制权转换过程中涉及到的各种检查并且配以相应的示例,示例代码是根据<Task>中的代码修改的,托管在https://github.com/activesys/learning_cpu/tree/master/x86/protection_5 程序控制权转换 很多指令都可以引起代码控制权的转换…

In this post, I will give a list of all undocumented parameters in Oracle 12.1.0.1c. Here is a query to see all the parameters (documented and undocumented) which contain the string you enter when prompted: – Enter name of the parameter when prompted…

2014-12-27 Created By BaoXinjian…

A novel massively parallel supercomputer of hundreds of teraOPS-scale includes node architectures based upon System-On-a-Chip technology, i.e., each processing node comprises a single Application Specific Integrated Circuit (ASIC). Within each ASIC n…

有下面的一些job可能参与其中的,他们的描述如下: AutoBalance,AutoBalanceLin - Balances free space in the cluster. The goal of the AutoBalance job is to ensure that each node has the same amount of data on it, in order to balance data evenly across the cluster. AutoBalance,…

今天用Unity5.5.1开发提取Assets目录的模块,使用时采用System.IO.Path.Combine(string, string, string, string)函数进行路径生成 明明是公有函数,为何会报错,奇了怪了 有谁知道什么原因?欢迎交流 ....... ... 重新打开了一下 ,可以了.版本原因…

目录 . 引言 . Kill Process By Kill Command && SIGNAL . Kill Process By Resource Limits . Kill Process By Code Injection Into Running Process Via GDB . Kill Process By Using Cross Process Virtual Memory Modify To Crash Process && process_vm_wri…

0. 引言 0x1: Linux系统攻防思想 在linux下进行"进程kill"和"进程保护"的总体思路有以下几个,我们围绕这几个核心思想展开进行研究 . 直接从外部杀死目标进程 . 进入到目标进程内部,从内部杀死.毁坏目标进程 . 劫持目标进程的正常启动.执行流程,从而杀死进程 . 利用系统原生的机制来"命令"进程结束 . 从内核态进程进程杀死 对于系统级攻防的对抗,我们需要明白,如果防御者和攻击者所处的层次维度是相同的(Ring3 again…

catalogue . OSSEC . HashSentry: Host-Based IDS in Python . Afick . 检测流程 1. OSSEC OSSEC is an Open Source Host-based Intrusion Detection System. It performs . log analysis . integrity checking . Windows registry monitoring . rootkit detection . real-t…

reference from:http://info.michael-simons.eu/2012/01/11/creating-a-csrf-protection-with-spring-3-1/ Creating a CSRF protection with Spring 3.1 CSRF Attacks still seems to be a problem, a pity that there is no standard solution in the Spring 3.1 frame…