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- Linux server time synchronization
- When the Linux server is running for a long time, there will be a certain error in the system time. Generally, you can use the date command to set the time. However, when doing complex operations such as database cluster sharding, the time difference between multiple machines is required. At this time, You need to use ntpdate for time synchronization. Common commands for Linux time operations: date command usage: date[-u][-ddatestr][-sdatestr][--utc][--universal][--date=datestr][--set=datestr][ --help][--version][+FORMAT][MMDDhhmm[[CC]
- LINUX 1317 2024-02-14 11:15:03
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- CentOS installation disk and partition guide
- When using CentOS for server deployment or system installation, disk partitioning is a key step. Reasonable partitioning not only helps to improve disk space utilization, but also enhances data security. This article will introduce in detail how to perform disk installation on CentOS. with partitions. 1. Check the disk status. Before installing CentOS, you first need to check the disk status of the server to ensure there is enough space for installation. 2. Select the disk partitioning method. CentOS supports a variety of partitioning methods, such as automatic partitioning, manual partitioning, etc. Choose the appropriate partitioning method based on actual needs and data security considerations. 3. Create partitions. Create corresponding partitions according to the selected partition method. It should be noted that at least one / (root directory) partition must be created.
- LINUX 1296 2024-02-14 11:06:08
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- Understand the health status of Linux in 61 seconds!
- As the foundation of all programs, the operating system has an important impact on the performance of applications. However, the speed differences between the various components of a computer are very large. For example, the speed difference between a CPU and a hard drive is greater than the speed difference between a rabbit and a tortoise. Below, we will briefly introduce the basics of CPU, memory, and I/O, and introduce some commands to evaluate their performance. 1.CPU First introduces the most important computing component in the computer: the central processing unit. Generally we can observe its performance through the top command. 1.1top command The top command can be used to observe some operating indicators of the CPU. As shown in the figure, after entering the top command, press the 1 key to see the detailed status of each core CPU. CPU usage has multiple dimensions
- LINUX 1310 2024-02-14 10:45:02
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- Sleeping and waking up Linux processes: Make your system more energy-saving and efficient
- The Linux system is an operating system that supports concurrent execution of multiple tasks. It can run multiple processes at the same time, thereby improving system utilization and efficiency. However, not all processes need to occupy processor resources all the time. Some processes can temporarily give up the processor under certain conditions, enter the sleep state, wait for the conditions to be met, then wake up and continue execution. The advantage of this is that it can save processor resources and give other processes that need to be executed more opportunities. It can also reduce the power consumption and heat of the system and improve the stability and lifespan of the system. This article will introduce the sleep and wake-up methods of processes in Linux systems, including the sleep reasons, sleep types, sleep functions, wake-up functions, and wake-up mechanisms of the process. Of course, a process can also
- LINUX 1272 2024-02-14 10:36:12
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- DEBIAN installation of water heater and debian installation go
- Here I will introduce to you how to install water heater and go on the DEBIAN system. DEBIAN, as a popular Linux distribution, is widely used in servers and desktop environments. Through the introduction of this article, you will be able to easily install it on the DEBIAN system. these two software. DEBIAN Installation Water Heater The water heater is a convenient and practical tool that can help you quickly heat water in cold weather, ol>You will successfully install the water heater on the DEBIAN system. debian installation goGo is a popular programming language that can be used to develop efficient and reliable software. Knowledge can help you. If you have any questions, please feel free to contact us.
- LINUX 1208 2024-02-14 10:30:18
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- Black Box – A gorgeous looking Linux desktop terminal emulator
- There are many terminal emulators available for Linux. From terminalemulators to Tilix, you have a variety of terminals to choose from. BlackBox is a terminal emulator that supports GTK4. The developer created this project so that he could use a good-looking terminal application on Linux. A new version of BlackBox, a gorgeous-looking Linux desktop terminal emulator that adds transparency and Sixel support, has been launched recently. The new version brings features you've been asking for, including support for customizable keyboard shortcuts. Users can edit keyboard shortcuts within the application to perform common operations such as copy and paste or switching tabs, as well as show/hide the title bar. also
- LINUX 846 2024-02-14 10:27:03
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- Install CentOS BIOS Boot tutorial and install WeChat
- As an open source operating system, LINUX is widely used in servers and personal computers. CentOS is a distribution of LINUX. It is built based on the Red Hat Enterprise Linux (RHEL) source code and has stability and security. In this article, we will detail Introduce how to install CentOSBIOSBoot, and after the installation is complete, teach you how to install WeChat. Installing CentOSBIOSBootCentOSBIOSBoot is a method of installing CentOS that uses the Basic Input/Output System (BIOS) to boot the system. The following are the steps to install CentOSBIOSBoot: Download the CentOS image file for you
- LINUX 736 2024-02-14 10:15:18
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- How to check hardware information under Linux?
- During the development process of Linux, we sometimes need to know the current hardware information, such as: CPU core? Usage? Memory size and usage? Is the usb device recognized? etc. The following are some commonly used hardware check commands. The lshwlshw command is a relatively general tool that can list the hardware information of the machine in detail. However, this command is not available in all distributions. For example, Fedora does not have it by default and you need to install it yourself. lshw can extract hardware information from each /proc file, such as: CPU, memory, USB controller, hard disk, etc. Without options, the information listed will be very long. With the -short option, only summary information will be listed. [alvin
- LINUX 661 2024-02-14 10:10:25
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- Learning Linux from scratch, here's how I installed it
- During my computer science course, I had the pleasure of installing a Linux toolkit on a virtual machine. Although there were some twists and turns in the process, fortunately, with unremitting efforts and carefulness, we successfully overcame the difficulties. Here, I would like to share my experience with all my colleagues. 1. Preparation: Choose the appropriate virtual machine software and Linux distribution. Before choosing to install the virtual machine, I did sufficient research and finally chose the highly reliable VMware Workstation. Among them, Ubuntu is my favorite Linux version. Again, both are recognized by the industry as good options. 2. Download and install the virtual machine software. We successfully visited the VMware official website and successfully obtained the latest V
- LINUX 1157 2024-02-14 10:06:11
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- Creation of CentOS disk installation disk and CentOS installation steps
- LINUX is an open source operating system. It has the advantages of high stability, good security, and strong customizability. Therefore, it has been widely used in the server field. CentOS, as a distribution version of LINUX, is the most popular operating system in the industry. For one system, when installing CentOS, we need a CentOS installation disk and the disk needs to be installed. Making a CentOS disk installation disk The steps to make a CentOS disk installation disk are as follows: 1. Download the CentOS ISO image file, which can be downloaded from the CentOS official website or other trusted mirror sites. 2. Write the ISO image file to a CD or USB flash drive. You can use some tools such as Rufus and Etch.
- LINUX 921 2024-02-14 09:57:08
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- Linux uses Systemd to manage process services, focus~
- Introduction to systemd Systemd is currently the main system daemon management tool on Linux systems. On the one hand, init manages processes serially, which is prone to blocking. On the other hand, init only executes startup scripts and cannot control services. More management itself. Therefore, starting from CentOS7, systemd has replaced init as the default system process management tool. All system resources managed by systemd are called Units, and these Units can be easily managed through the systemd command set. Such as systemctl, hostnamectl, timedatectl, localctl and other commands
- LINUX 1020 2024-02-14 09:51:14
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- Installing LevelDB under CentOS and installing v2 on CentOS
- Installing and configuring LevelDB in CentOS systems is a very useful skill. LevelDB is a high-performance key-value store that can be used to build various applications, such as databases, caches, and logging systems. This article will introduce in detail how to install and configure LevelDB on CentOS. The process of installing and configuring LevelDB on the system, and providing some practical commands and techniques. Installing LevelDB under CentOS The following are the steps to install LevelDB on CentOS system: Install dependencies Before starting to install LevelDB, you need to install some necessary dependencies. Open the terminal and execute the following command to install these dependencies: ``sudoyuminstallsnappy- deve
- LINUX 980 2024-02-14 09:33:06
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- In-depth exploration of process analysis technology under Linux!
- As a Linux system developer, have you ever encountered problems such as process freezes and application unresponsiveness, but you don’t know how to effectively analyze and handle them? If that's the case, then you've come to the right place! This article will introduce process analysis technology under Linux to help you gain a deeper understanding of the mechanism of process operation and effectively discover and solve problems. 1. What is ps? To monitor and control a process, you must first understand the situation of the current process, that is, you need to view the current process. The ps command is the most basic process viewing command. Use this command to determine which processes are running and their running status, whether the process has ended, whether there are zombies in the process, which processes occupy too many resources, etc. In short, most of the information
- LINUX 669 2024-02-14 09:27:13
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- How to install deepin linux on computer and how to install deepin linux system
- Deepin Linux is an operating system based on the open source Linux kernel. It has the advantages of stability, security, and ease of use. This article will introduce in detail how to install the Deepin Linux system on your computer to help you quickly get started and experience the charm of Linux. Preparation work Before installing Deepin Linux, you need to make the following preparations: 1. Download the ISO image file of Deepin Linux. 2. Make a bootable USB disk or CD for installing the system. 3. Back up important data to avoid loss during installation. Installation steps Next, follow the steps below to install the Deepin Linux system: 1. Insert the boot USB disk or CD into the computer and restart the computer. 2. Enter the BIOS settings and set the startup item to U disk or CD. 3.Enter
- LINUX 777 2024-02-14 09:10:08
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- Detailed analysis of Linux kernel linked list
- 1. Introduction to linked list data structure Linked list is a commonly used data structure for organizing ordered data. It connects a series of data nodes into a data chain through pointers, and is an important implementation method of linear tables. Compared to arrays, linked lists are more dynamic. When building a linked list, there is no need to know the total amount of data in advance, space can be randomly allocated, and data can be efficiently inserted or deleted at any location in the linked list in real time. The main overhead of linked lists is the sequentiality of access and the space loss of organizing the chain. Usually, a linked list data structure should contain at least two fields: data field and pointer field. The data field is used to store data, and the pointer field is used to establish contact with the next node. According to the organization of pointer fields and the connection form between each node, linked lists can be divided into single linked lists, double linked lists, and circular links.
- LINUX 1257 2024-02-14 08:54:26
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