Cloud Security

Thanks to the excellent network functions of the Linux operating system, most website servers on the Internet use Linux as the main operating system. However, because the operating system is a multi-user operating system, Hackers often choose Linux

The core of a computer system is an operating system. Therefore, the security of an operating system directly determines whether information is secure. Is it an open-source operating system security or an open-source operating system security? This

It is often seen that someone uses the port scan software (ex: nmap) to scan others' ports in disorder,Really annoying @_@Here we provide several methods through the new kernel mechanism of linux kernel 2.4 + iptablesTo make some restrictions:

Linux system security cannot be ignored. However, system reinforcement is not very easy. The author briefly introduces the in-depth security reinforcement for Linux systems.Deep security reinforcement for Linux systemsAuthor: ayazero

The following four suggestions help you expand the network coverage while ensuring its security.The coverage of a wireless network refers to the effective coverage area and the physical area that can be effectively accessed. In most cases, expanding

1. Introduction to snortSnort is designed to fill the gaps left by systems that are designed to detect expensive and heavy network intrusions. Snort is a free, cross-platform software package that monitors small TCP/IP network sniffer, logging, and

The importance of information infrastructure determines the necessity of network intrusion detection and early warning. When we need network warnings to defend the network just as we need radar to defend the airspace, we need to invest manpower,

Generally, LINUX Firewall iptalbes uses nat tables PREROUTING, OUTPUT, and POSTROUTING and filter tables (FORWARD, INPUT, and OUTPUT ). We can correctly configure the firewall only when we know the data flow. A relatively intuitive graph is used to

1. What is "rootkit "?Intruders often clean up footprints and leave backdoors after intrusion. The most common backdoor creation tool is rootkit. Don't be confused by the name. This so-called "rootkit" is not used by the Super User root. It is an

We have introduced the basic concepts and usage of iptables. Now we will officially use iptables to create our firewall. The method for starting and stopping iptables depends on the Linux release version in use. You can view the documentation of the

Install the Socks5 agentThe socks5 agent software used for overseas agency selection is a software developed by NEC. It is actually a commercial version of software. However, according to its license file, it is free to use the software for

In the ora Core 3 Linux release version, when you run files or directories of PHP or similar scripts, the following exception may occur: "failed to open stream: permission denied in... ". This easily reminds us of permission issues. We will set the

1. Linux-based network security policies and protection measuresWith the increasing popularity of Internet/Intranet networks, more and more users are using Linux network operating systems as servers. This is because Linux is a free and genuine

During the use of a computer, the following problems may exist in the system patch: first, the computer has been patched, but not necessarily complete, there are also some problems in the follow-up update method and update time of patches. Second,

Bkjia.com exclusive Article] Do you know Zhao Ming from the ancient saying? As early as thousands of years ago, Sun Tzu, an ancient Chinese military strategist, pointed out in Sun Tzu's Art of War: "know yourself, never fight, never know yourself,

Currently, attackers do not need to have a deep understanding of network protocols by using attack software that is everywhere on the Internet, such as changing the Web site homepage and getting the administrator password, damage the entire website

SecurityDuring the discussion, we have introduced the core of the access control security design and the division of trust relationships. This article will continue to introduce it to you. The idea of data and code separation is the principle of

Features of Web Application Firewall Some common features of Web application firewall are as follows. 1. exception detection protocol WAF detects exceptions in HTTP requests and rejects requests that do not comply with HTTP standards. In addition,

Web Application Service vulnerabilities: Unreliable default values In Web application design, many default values are set to improve user input efficiency. However, these default values are a double-edged sword. That is, it can increase the speed of

The growth of Web applications and services has exceeded the security training and security awareness received by program developers. The security risks of Web application systems have reached an unprecedented level. This article analyzes common