Linux attack test questions

Google search is expected to test all the questions on its own and occasionally ask related questions when recruiting linux engineers! Hope to bring you some convenience   1. How can I log on to the system and disable history operation commands?2.

Linux system reinforcement: Modify the user password's Validity Period Mechanism

There must also be a method to hold your feet. The 26th is approaching. I cannot guarantee that I can remember too many things in a short time and they are all right, assume it's a monkey, Dad, and B. You can't watch it, hahaha ~ (You are not

General linux System Security Optimization

For security control on the server's local terminal, you can start from the following aspects: 1. normal user logon is immediately prohibited. When the server is performing backup, debugging, and other maintenance work, you may not want new users to

Starting with grub encryption system in Linux

What is grub, Baidu? It's mainly about starting the encryption system and entering the password I use CentOS here. First download grub: wget ftp://ftp.gnu.org/gnu/grub/grub-2.00.tar.gz   Decompress the downloaded package. Tar zvxf grub-2.00.tar.gz

How to locate file fields in File Vulnerability Analysis

 Today, I saw someone asking me how to compare the file format document and what structure is being parsed In the debugging analysis program? I have summarized several methods here. You are welcome to add them, but sometimes you still need to rely

How to harden your nginx and php in linux

Linux systems are relatively safer than windows systems, but some programs are insecure. No matter what system you are, there are also risk factors. Here, we have summarized some common methods for eliminating Trojans and reinforcing system security

Browser security (I)

0x00 background Well, long short asked me to write an article on browser security, so I appeared, please don't speak out, this scum technology. This article draws on Kcon and hitcon PPT.  0x01 Introduction The question about browser security is the

Trs wcm 6. X Arbitrary File writing

Files can be written directly to the server. The file name and content can be customized. The affected version is unknown, which is about 6. x, there is no one-to-one test for the billable guy. It is unknown whether to use it. There are several

Build and configure a safer website

Best Security Solution for Windows 2000 Advanced Server, Internet Information Service 5.0, SQL Server 2000, And. NET Framework Author: Timothy Bollefer, Girish Chander, Jesper Johansson, Mike Kass, Erik Olson-Microsoft Corp. Scott Stanfield, James

Manual check for Injection

========================================================== ============================================□Detect whether injection can be performed========================================================== ==============================================

SQL Injection practice-use "dbo" to obtain SQL Management and System Permissions

    At the beginning, I started to learn about SQL injection infiltration. I hope you can give me more guidance when writing something wrong or bad. In a supply and demand information published on the site to test the page http://www.xxx.com/new/new.

What is shell?

Shell is an application that accepts user commands and requests to operate the system, someone will package the shell kernel out of the kernel and then package a kernel AP. I prefer not to use the same method, for me, shell is just another

Quick learning and understanding of SQL Injection Technology

Source: age and month Alliance Detect whether injection can be performedHttp: // 127.0.0.1/xx? Id = 11 and 1 = 1 (normal page)Http: // 127.0.0.1/xx? Id = 11 and 1 = 2 (error page) Detection Table Section Http: // 127.0.0.1/xx? Id = 11 and exists

Dll Injection Using hook

Use a single dll(inject.dll(and a calling program (caller.exe)Process: Caller.exe Procedure TestHook;Var pwnd, hChild, hwndInject: hwnd;Msg: tmsg;Begin// Use FindWindow in the window title to find the main window handle pwnd of the program to be

Cross-Site SQL Injection database attacks

In the previous phase, when attempting to attack a website, we found that the system of the other party has blocked the error message and used the database connected to the ordinary account, the system also has all patches, Which is troublesome for

Manual injection asp Learning

ACCESSQuery database typesHttp://www.zengke.com/product.asp? Sort_id = 24 and exists (select * from sysobjects) On the admin page of the query table, the query result is displayed as "yes" and the error is "no.Http://www.zengke.com//product.asp?

Website Security Protection-AVG Anti-Spyware

Author: X-ray assassin In recent years, the number of personal websites has increased by dozens of times, and there are no fewer webmasters with personal websites. However, it is not easy to become a webmaster. I am the webmaster of a resource

Security Configuration of website anti-Trojan permission settings for IIS Virtual Hosts

I have made some practices on the security settings of WIN2003 on the Internet and have compiled these security settings articles, hoping to help you, in addition, I would like to give you some advice on the shortcomings and then add them. Thank you!

Two UPDATE injection modes (mysql php)

Text/security Angel SuperHeiI. test environment:OS: Windows XP sp2Php: php 4.3.10 (Mysql 4.1.9Apache 1.3.33 2. Test the database structure:----- Start ----- Database: 'test'-- ---------------------------------------------------------- ---- Table

Summary of manual ASP injection script Learning

ACCESS Query database typesHttp://www.zengke.com/product.asp? Sort_id = 24 and exists (select * from sysobjects) On the admin page of the query table, the query result is displayed as "yes" and the error is "no.Http://www.zengke.com//product.asp?

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