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An in-depth analysis of the three policy types of SELinux

An in-depth analysis of the three policy types of SELinux

Detailed explanation of the three policy types of SELinux and code examples SELinux (Security-EnhancedLinux) is a security subsystem that implements mandatory access control on the Linux operating system. It ensures the security of the system by defining mandatory access rules for each operation. In SELinux, there are three main policy types: Enforcing, Permissive, and Disabled. This article will introduce these three in detail

Feb 26, 2024 pm 10:24 PM
策略 类型 selinux linux操作系统
Share how to detect SSH version in Linux system

Share how to detect SSH version in Linux system

Tips for detecting SSH version under Linux system SSH (SecureShell) is an encrypted network protocol commonly used for remote login and command execution. In Linux systems, SSH is an important tool, and it is very important to understand the SSH version used by the current system. This article will share several techniques for detecting SSH versions and provide specific code examples. 1. Use the ssh command to detect the SSH version. Use the following command in the terminal to detect the SSH version information: ssh-V execution

Feb 26, 2024 pm 10:15 PM
linux系统 技巧分享 ssh版本检测
Analyzing SELinux: Principles and Practice

Analyzing SELinux: Principles and Practice

In recent years, with the rapid development of information technology, network security issues have become increasingly prominent. In order to improve the security of the system, various security mechanisms have emerged. Among them, SELinux (Security-EnhancedLinux), as a security extension module, is widely used in Linux systems, providing a higher level of security policy implementation for the system. 1. Functional principles of SELinux The core idea of ​​SELinux is to limit the permissions and behavior of programs through authorized access. Traditional Linu

Feb 26, 2024 pm 10:06 PM
应用 selinux 功能原理
How to view block device information in Linux environment?

How to view block device information in Linux environment?

On the Linux operating system, we often need to view various hardware information for system maintenance and troubleshooting. Among them, viewing block device information is a very common operation, which can help us understand the detailed information of storage devices such as hard drives and solid-state drives. This article will introduce how to view block device information on Linux and provide specific code examples. In Linux systems, we can use some commands to view block device information. Commonly used commands include lsblk, fdisk, and blkid. Below we will go through one by one

Feb 26, 2024 pm 10:00 PM
信息 linux 查看块设备 linux操作系统
Tip: Effectively Interpret and Manage Linux Log Files

Tip: Effectively Interpret and Manage Linux Log Files

Title: An in-depth discussion of Linux log file interpretation and management techniques In the Linux system, log files are a very important component, which record the running status, error messages and other key information of the system and applications. Correct interpretation and management of log files can help us discover and solve problems in time and improve the stability and security of the system. This article will introduce the basic concepts of Linux log files and how to use common commands and tools to interpret and manage log files. 1. The type and location of the log file is in Lin

Feb 26, 2024 pm 09:54 PM
linux 管理 日志
Introducing the data encryption tool EncryptPad on the Linux platform

Introducing the data encryption tool EncryptPad on the Linux platform

Introduction to the data encryption artifact EncryptPad on the Linux platform In today's era of highly developed digital information transmission, data security has become particularly important. For Linux system users, having a powerful and easy-to-operate data encryption tool is crucial. Among many encryption tools, EncryptPad has received widespread attention due to its simplicity and ease of use. This article will introduce the data encryption artifact EncryptPad on the Linux platform, as well as specific code examples. Encry

Feb 26, 2024 pm 09:42 PM
加密算法 文件安全 数据保护
Explore the data encryption tool EncryptPad under the Linux operating system

Explore the data encryption tool EncryptPad under the Linux operating system

Title: What is EncryptPad? Research on Encryption Tools under Linux In today's information age, data security is highly valued. Especially under the open source operating system Linux, the demand for encryption tools is gradually increasing. EncryptPad, as a popular encryption tool under Linux, provides powerful encryption capabilities to protect users' files and information. This article will discuss the characteristics and usage of EncryptPad, combined with specific code examples, to help readers better understand and apply this

Feb 26, 2024 pm 09:36 PM
linux 加密 linux操作系统
How to effectively manage disk space without duf command in Linux system?

How to effectively manage disk space without duf command in Linux system?

Title: How to manage disk space without duf command in Linux system? In Linux systems, managing disk space is a very important task. Usually we use some command line tools to check disk usage, such as the common df command. However, sometimes you may encounter some situations, such as tools like duf not installed on the server, so how to manage disk space? This article will introduce some alternatives and give specific code examples. Using the df command Although there is no duf command, Li

Feb 26, 2024 pm 09:27 PM
Principle and application scenarios: The working principle and practical use of the ttyload tool in Linux

Principle and application scenarios: The working principle and practical use of the ttyload tool in Linux

Principles and application scenarios of the Linuxttyload tool 1. Introduction to the Linuxttyload tool The ttyload tool under the Linux operating system is a practical tool for monitoring terminal load conditions. Through the ttyload tool, users can view the current system terminal load in real time, including CPU usage, memory usage, and the average load of the system. 2. The principle of the ttyload tool The implementation principle of the ttyload tool is to read the /pr of the system

Feb 26, 2024 pm 09:21 PM
原理 linux ttyload linux操作系统 内存占用
Master the SELinux Policy Categories

Master the SELinux Policy Categories

SELinux is a MandatoryAccessControl (MAC)-based security mechanism used to restrict program and user access to system resources. In SELinux, policy types are one of the important concepts used to define and control access rights to objects. This article will introduce the policy types in SELinux and use specific code examples to help readers better understand. Overview of SELinux policy types In SELinux, each object (file, process, etc.) has an associated

Feb 26, 2024 pm 08:57 PM
策略 类型 selinux
Evaluate the effect of using the ttyload tool on Linux system performance

Evaluate the effect of using the ttyload tool on Linux system performance

The Linux system is an open source operating system that is widely used in servers, embedded devices and other fields. In Linux systems, ttyload is a tool used to monitor system load in real time, which can help users understand the operating status of the system and optimize performance in a timely manner. This article will analyze the impact of the ttyload tool on system performance and provide specific code examples. Introduction to ttyload tool ttyload is a lightweight Linux system load monitoring tool

Feb 26, 2024 pm 08:54 PM
性能 linux ttyload
Detailed analysis of column attributes in Linux log files

Detailed analysis of column attributes in Linux log files

Log files in the Linux system are a key component that records system operating status, error information, and various operation logs. For administrators, understanding the column attributes and their functions in log files can help them better monitor the system, diagnose problems, and solve them in a timely manner. In Linux, log files are usually stored in the /var/log directory, which contains some common log files, such as messages, auth.log, etc. First, let’s take a deeper look at the column attributes and

Feb 26, 2024 pm 08:54 PM
linux 日志 属性
A deep dive into the features and benefits of EncryptPad in Linux operating systems

A deep dive into the features and benefits of EncryptPad in Linux operating systems

Detailed explanation of the role and advantages of EncryptPad in Linux systems In today's era of information explosion, information security has become particularly important. Especially in Linux systems, protecting the security of sensitive data is particularly important. EncryptPad is an open source, cross-platform encryption software designed for protecting text files and notes. EncryptPad not only plays an important role in Linux systems, but also has many advantages, allowing users to easily encrypt and decrypt files, ensuring the confidentiality of data. one

Feb 26, 2024 pm 08:33 PM
linux系统 安全性 加密文件 linux操作系统 敏感数据
Learn to view hard disk information in Linux system

Learn to view hard disk information in Linux system

Learn to view block device information in Linux systems In Linux systems, it is very important to understand and view block device information, especially for system administrators and developers. Block devices refer to hardware devices that can be recognized by the operating system and used to store data, such as hard drives, solid-state drives, USB flash drives, etc. By viewing block device information, it can help users understand the status of each device in the system, so as to conduct reasonable management and optimization. The following will introduce how to view block device information in Linux systems and give specific code examples.

Feb 26, 2024 pm 08:27 PM
linux 查看 块设备

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