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- Analysis of the function and principle of Linux Opt partition
- Analysis of the function and principle of Linux Opt partition In Linux systems, the Opt partition is a special partition. It is not necessary, but it can be used to store some files that require separate optimization or special configuration. This article will explore the role and principle of Opt partitioning, and provide some specific code examples to help readers better understand. The role of Opt partition In Linux systems, Opt partitions are usually used to store some special applications or system files. These files may require independent optimization configuration to improve
- LINUX 1268 2024-03-19 11:00:05
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- Common operations and precautions for Linux command mkdir
- The Linux operating system is an operating system widely used in various computer systems and has powerful command line tools. Among them, mkdir (makedirectory) is a commonly used command for creating directories. In this article, we will discuss the common operations and precautions of the mkdir command, and provide specific code examples. 1. Basic usage First, let’s take a look at the basic usage of the mkdir command: mkdir [option] directory name here, [option] represents optional parameters,
- LINUX 499 2024-03-19 10:36:04
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- System calls in Linux are not legal entries into the kernel
- In Linux, system calls are the only means for user space to access the kernel. They are the only legal entrance to the kernel. In fact, other methods such as device files and /proc are ultimately performed through system calls. Typically, applications are programmed through application programming sockets (APIs) rather than directly through system calls, and these programming sockets do not actually need to correspond to the system calls provided by the kernel. An API defines a set of programming sockets used by applications. They can be implemented as one system call or by calling multiple system calls. There is no problem even if no system calls are used. In fact, the API can be implemented on a variety of different operating systems, providing applications with completely consistent
- LINUX 961 2024-03-19 10:34:02
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- How to solve mysql master-slave delay
- MySQL's built-in replication capabilities are the foundation for building large, high-performance applications. Distribute MySQL data to multiple systems. This distributed mechanism is achieved by copying the data of a certain MySQL host to other host slaves and re-executing it. During replication, one server acts as the master and one or more other servers act as slaves. The master writes updates to binary log files and maintains an index of the files to track log rotation. These logs record updates sent to slave servers. When a slave connects to the master, it notifies the master of the location of the last successful update the slave read in the log. received from the server at that time
- LINUX 1198 2024-03-19 09:28:24
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- How can a network expert not understand these Linux 'network configuration' and 'troubleshooting' commands?
- 1.ifconfig In the Linux kernel, the ifconfig command plays an important role in configuring and displaying network interface parameters. Through the ifconfig command, users can perform various configurations on the network interface. However, it should be noted that the network card information configured using the ifconfig command will become invalid once the network card is restarted or the machine is restarted. If you want to save these configuration information permanently in the computer, you need to modify the configuration file of the corresponding network card. In this way, the configuration will be retained even if the system is restarted. #ifconfigeth0:flags=4163mtu1500inet172.24.186.123netmask255.255
- LINUX 696 2024-03-18 16:22:02
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- A Practical Guide to Hands-On Linux Kernel Compilation
- The Linux kernel is the core component of the operating system and is mainly responsible for managing system resources, task scheduling, and providing system call interfaces and other functions. For many Linux users and system administrators, customizing and compiling your own kernel is an interesting and useful task. This article aims to provide readers with a detailed Linux kernel compilation guide to help them understand the basic process of kernel compilation, common techniques, and how to customize and optimize the kernel according to personal needs. Preparation Before you start compiling the kernel, you need to do some preparation. First, ensure that the system has the necessary development tools and dependencies installed, such as compilers, header files, etc. Secondly, to obtain the Linux kernel source code, you can download it from the official website or use the version management system
- LINUX 743 2024-03-18 15:00:14
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- Synchronization and mutual exclusion mechanism in Linux
- In a multi-process or multi-thread operating system environment, synchronization and mutual exclusion are key concepts used to ensure correct access to shared resources. The following are the design principles of synchronization and mutual exclusion and how they are implemented in Linux: Synchronization mechanism (Synchronization) The synchronization mechanism coordinates the execution of multiple execution threads or processes to ensure that they execute in a certain order or wait under specific conditions. process. Common synchronization mechanisms include semaphores, condition variables, barriers, etc. Design Principles Atomic Operations: Atomic operations refer to indivisible operations, either all of them are executed or none of them are executed. In synchronization, atomic operations are an essential element to ensure safe execution of a thread or process. Mutually exclusive access (Mu
- LINUX 988 2024-03-18 13:49:10
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- Share anonymous files with Onionshare
- Even if you send files through a secure cloud service, the company will notice them and, if they are confidential, the government can even get their hands on them. So, to overcome these problems, we use OnionShare, as its name suggests it uses the onion network i.e. Tor to share files anonymously to anyone. How to use OnionShare? Start by downloading OnionShare and Tor Browser. Install them after downloading. installonionshareandtorbrowser now open Onionshareonionsharesharefilesanonymously from start menu click add and add a file/folder
- LINUX 1227 2024-03-18 13:25:02
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- Detailed explanation of tput commands commonly used in Linux open source projects
- The tput command is a very practical tool that can control and format text and colors in the terminal. In Linux open source projects, especially in scripting and command line interface design, tput is a widely used command. This article will delve into the various uses of the tput command and provide rich sample code to help readers fully understand its functions and uses. Clear screen The tput command can be used to clear the contents of the terminal screen. The following example will clear all text on the screen: tputclear This will clear the text on the terminal screen so that it becomes blank. To set the text color, you can use the tput command to set the foreground and background colors of the text. The following example sets text to red: tputset
- LINUX 989 2024-03-18 13:13:02
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- Tencent becomes a platinum member of the Linux Foundation and officially becomes a member of China's open source community
- On the 25th, the LC3 (LinuxCon ContainerCon CloudOpen) China 2018 conference concluded in Nanjing. The conference was hosted by the Linux Foundation. It is a technology summit integrating Linux, containers, cloud technology, network, microservices and other cutting-edge open source agendas, attracting More than 2,000 open source experts gathered together. At this conference, Tencent announced that it would contribute two of its major self-developed open source projects - the high-performance RPC development framework TARS embedded Linux open source community and its lightweight name service solution TSeer to the Linux Foundation. At the same time, the Linux Foundation, a non-profit open source organization that brings together the world's top developers, announced that Tencent will soon become the Linux Foundation
- LINUX 1350 2024-03-18 09:04:11
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- Python-mode: Vim plugin for developing Python applications in the Vim editor
- Python-mode is a Vim plug-in that enables you to write Python code faster in the Vim editor using various libraries including pylint, rope, pydoc, pyflakes, pep8, autopep8, pep257 and mccable. These libraries Provides some coding functions, such as static analysis, feature reconstruction, folding, completion and documentation, etc. Recommended reading: How to use the Bash-Support plug-in to turn the Vim editor into an IDE for writing Bash scripts. This plug-in includes all the features you can use to develop Python applications in the Vim editor. The characteristics of Python-mode include the following values
- LINUX 1160 2024-03-17 21:10:03
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- Several steps and precautions to follow when connecting a virtual machine to Xshell
- ###Answer 1: To connect to a virtual machine, you need to install the SSH service in the virtual machine and set up the network connection. After that, create a new session in Xshell, select the SSH contract, enter the IP address of the virtual machine and the SSH port number linuxfind to connect to the virtual machine. If you need to use a username and password for authentication, you can enter the corresponding information in the session settings. ###Answer 2: The following steps must be followed to connect a virtual machine to Xshell: 1. First, ensure that the virtual machine and the host laptop are in the same network environment and can communicate with each other. 2. Set the network type in the virtual machine to bridge mode or NAT mode. If you choose the bridge mode linux command, virtual
- LINUX 949 2024-03-17 10:49:05
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- Install Gsnow extension to make snow on Gnome desktop
- Since the command line tool xsnow no longer runs on Ubuntu, Gnome3 users can use an extension called "gsnow" to make snow on the desktop. After installing the required libraries, you can install "gsnow" from extensions.gnome.org/extension/1156/gsnow/ or search for and install it through Ubuntu Software. Start or stop snowing on your desktop: If you have the extension installed, click the little snowflake icon in the system tray in the upper right corner to start or stop snowing. Turn gsnow extension on/off: Search and install 'GnomeTweaks' in Ubuntu Software. This tool provides a tool for managing installed
- LINUX 1135 2024-03-17 09:37:17
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- Data goes from deleting the database to running away and then rolling it back to recover.
- Install recovery software 1. epel warehouse installation If the epel warehouse is added to our source, we can install it directly using the following command. yuminstallextundelete-y2, source code compilation and installation wgethttp://zy-res.oss-cn-hangzhou.aliyuncs.com/server/extundelete-0.2.4.tar.bz2yum-yinstallbzip2e2fsprogs-devele2fsprogsgcc-c maketar-xvjfextundelete-0.2.4. tar.bz2cde
- LINUX 771 2024-03-17 09:25:12
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- A must-read for Windows users! Download Linux files in 7 steps and get the resources you need easily
- Q: As a Windows user, if you want to obtain Linux files, what should you do? As a Windows user, you can follow these seven easy steps to quickly download the Linux files you need. Step 1: Understand the types and formats of Linux files. To obtain Linux files, the first thing to do is to clarify the type and format of the required files. There are differences between Linux versions and many file types, such as ISO images, compressed packages, software installation packages, etc. Be sure to know what type of document you are requesting to avoid confusion. Step 2: Choose the appropriate Linux distribution. Choose the appropriate Linux distribution according to your own needs, such as Ubuntu, Fedora, Debian, etc. Each distribution has different features and uses
- LINUX 619 2024-03-17 09:04:15
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