英文原文: Basic Linux Privilege Escalation 在开始之前,我想指出 - 我不是专家. 据我所知,在这个巨大的领域没有一个“魔法”的答案. 这只是我的发现,写出来,共享而已(是我的起点). 下面列举的项中会出现几个不同命令,都是做同样的事,在不同的场景使用可能会有不一样的亮点.我知道有更多的东西有待探索, 这只是一个基本和粗略的指导. 并不是每个命令都适用于每个系统,因为Linux版本之间有很大的不同. "It" will not jump off the…
Linux comes with a host based firewall called Netfilter. According to the official project site: netfilter is a set of hooks inside the Linux kernel that allows kernel modules to register callback functions with the network stack. A registered callba…
一.更改yum源为网易的源加快速度 vi /etc/yum.repos.d/CentOS-Base.repo 更改内容如下 # CentOS-Base.repo # # This file uses a new mirrorlist system developed by Lance Davis for CentOS. # The mirror system uses the connecting IP address of the client and the # update status…
My case goes like this. I installed bitnami redmine first with port 80 for http service, but got problems and failed. However, when I tried to give a second shot, I was told that port 80 was not available, so instead I used port 81. The app, redmine,…
Before starting, I would like to point out - I'm no expert. As far as I know, there isn't a "magic" answer, in this huge area. This is simply my finding, typed up, to be shared (my starting point). Below is a mixture of commands to do the same t…
UNIT 13 Essential Network Tuning 网络性能调整 目标:1. 应用队列技术最大化网络吞吐量 2. 调整TCP和non-TCP网络sockets的buffer 13.1 Simplified transmit model 简化传输的模式 A. Output/writer发送数据 a. 把数据传到socket ”file” (相当于传输了buffer) ** b. 内核把数据封装…
最近杂事太多,正事进展缓慢.Fighting! linux命令行提供了非常强大的文本处理功能,组合利用linux命令能实现好多强大的功能.本文这里举例说明如何利用Linux命令行进行文本按行去重并按重复次数排序.主要用到的命令有sort,uniq和cut.其中,sort主要功能是排序,uniq主要功能是实现相邻文本行的去重,cut可以从文本行中提取相应的文本列(简单地说,就是按列操作文本行). 用于演示的测试文件内容如下: Hello World. Apple and Nokia. Hello…
Lab 4 The Domain Name System Goal: To install and configure a DNS server System Setup: Throughout this and subsequent labs, you will configure your system with various services. For each of these leave SELinux and the firewall enabled, and add the po…
Lab 7 Electronic Mail Goal: To build common skills with MTA configuration Estimated Duration: 90 minutes System Setup: Ensure that SELinux and packet filtering are enabled. If you feel confident, then try to complete the lab based only on the specifi…
