Cloud Security

All the code in this article is based on the CentOS 6.4 operating system as an example. It should be applicable in version 6.x. If other versions are different in the command path, the idea is the same. This article can also be called: CentOS

Mysql optimization settingsOpen the/etc/my. cnf file and modify the following settings. If not, add it manually. When adjusting the settings, please do your best, which depends on the configuration of your server, especially the memory size. The

Faults:The server is infiltrated. Intruders create self-run files, automatically create and execute files under/tmp, and automatically detect and disable iptables.Discovery process:1. log on to the server and run the netstat-anp | grep LIS command

Is a web system. The front-end uses nginx as the reverse proxy to process https and forward requests to the backend tomcat service. The pressure test tool selects jmeter. First, let's briefly introduce jmeter. It is an open-source project of apache

First, let's get started with Wikipedia. Then try to launch a man-in-the-middle attack. Theoretical Basis Understand the layered architecture of computer networks. Used to actively use search engines to find knowledge The following content is

I. ARP spoofing-based data stream redirection1.1 ARP and Its workflow ARP is short for Address Resolution Protocol (Address Resolution Protocol). RFC826 describes its functions as follows: resolve the network layer protocol address of the computer

Cpu usage Collection AlgorithmCollect and calculate the total CPU usage or single-core usage using the/proc/stat file. Taking cpu0 as an example, the algorithm is as follows:1. cat/proc/stat | grep 'cpu0' to obtain cpu0 Information2. cpuTotal1 =

During our daily O & M, we often encounter the need to set up the rsync service, such as website file synchronization (image or backup), patch update, disaster Tolerance and backup for various different machine backups. If you write the rsync

This script is used to configure new Linux instances, such as disabling iptable, SElinux, and ipv6, optimizing the system kernel, and stopping unnecessary system services. This script is especially suitable for a large number of newly installed

Expand disk space. If it is a virtual disk, ensure that the disk space of the virtual machine is installed. Otherwise, the machine will automatically shut down when the space is full. 1. Patch migration1.1 enter the directory:Cd \ Program Files \

Are you still worried about having a safe dog and not adding users? Please refer to the following link for more information ~ In three steps, how can I use guest to obtain the logon permission when the latest server security dog 4.0.05221 account is

From SQL INJECTION TO SHELL: POSTGRESQL EDITION Here we will first introduce POSTGRESQL. This is a database management system, the same type of software as oracle. In about 8%, the market share was. Survey the use of open-source databases in the

The trigger conditions are harsh, but I still think we should submit a question about character set defects first.Character Set [ISO-2022-KR] considers a string starting with & # x0E; & # x0F; as 2 bytes or a character. In other words, it can help

I personally think that we should not only check user input, but should check before SQL queries to better prevent injection, because there are always omissions.Common. inc. php 0x00 If (! Empty ($ _ SERVER ['request _ URI ']) strip_uri ($ _ SERVER [

The user account information can be directly modified (including the Administrator) because no judgment has been made for a change)Change email activation-> modify the email address of any uid-> log in-> use the changed email address to retrieve the

A large number of user sites are vulnerable to hijacking due to SQL Injection on the PowerCDN website. customers include: aliwang.com, Jinjiang literature, 3158, Phoenix bathroom, Sina famous doctor, 2345 ...... injection point:

Any ThinkSNS file contains. Under certain conditions, the getshell problem occurs in public/minify. php. Allowed_content_types = array ('js', 'css '); $ getfiles = explode (', ', strip_tags ($ _ GET ['F']); // resolution parameter $ gettype = (isset

There are also logical design defects in the shopping cart. The number of items can be negative, resulting in arbitrary tampering of the total amount. Detailed Description: Total Amount of Shopping Cart = item 1 × quantity + Item 2 × quantity

The game can be bypassed without data verification or verification. There is a design error in the Xiaomi tribe of games that Xiaomi technology company cooperates with Rheinland Tianxia (Beijing) Co., Ltd. Vulnerability 1. daily tasks can be used to

Because WEB applications are extremely important to the internal and external operations of many enterprises today, their availability and security are both the expectations of customers and their requirements. Therefore, enterprises should pay no