Linux

New into a second-hand X240, directly formatted, loaded ArchLinux.First, the Boot program installation---------------1. First figure out what UEFI isboot sequence under under Uefi System switched on. The Power on Self Test (POST) is executed.

First, the conceptIn simple terms, the semaphore is a counter that describes the number of resources for a critical resource.The essence of Semaphore is a data operation lock, which does not have the function of data exchange, but realizes

One, Linux server performance concerns1) CPULoad: Represents the sum of the statistics of the tasks that the CPU is processing and waiting to process over time, as simple as the ratio of the number of threads being processed by the CPU and the

Connect to a Linux virtual machine using SECURECRT software ssh. Then open the SFTP session above the SECURECRT------------------------sftp Command------------------------------------------sftp> helpavailable commands:ascii Set transfer mode to

Bash scripting one variable, variable typeShell Programming:Compilers, interpretersProgramming languages: Machine language, assembly language, advanced languagesStatic language: Compiled languageStrongly typed (variable) languageconvert into

how the Install and configure Munin on LinuxMunin is a great system monitoring tool similar to the RRD tool that provides you with a wide range of systems performance information, such as disks, networks, processes, systems, and users. These are the

After the IP address is bound, The hostname of Linux I changed back to Localhost.localdomain, after the restart is to become 237.99.135.219.broad.fs.gd.dynamic.163data.com.cn this string of ghosts, 650) this.width=650; "Src="

Background: History is a regular use of Linux in the content, in the work of some users will suddenly find that they can not install a certain software, and then seek the help of operators, and do not show you what he did in the end what the pit

First, user group managementCreate a groupGroupad command:Groupadd [OPTION] ... group_name-g gid: Specify GID number; [Gid_min,gid_max]-r: Create System Group; CentOS 6:id650) this.width=650; "src="

Under Linux, the level of I/O processing can be divided into 4 tiers: System call layer, the application uses system calls to specify which file to read and write, and what the file offset is The file system layer, which copies buffer

How user space accesses and monitors the kernel:/proc,/sysPseudo File System:/proc/sys: Files in this directory a lot of things to read and write/sys/: Some files can be writtenSetting kernel parameters is worth the method:Echo

One, the installation of the virtual machine:1, the current more common virtual machine (VM), the source of the Niang:Virtual PC virtual Box VMware WorkstationVirtualBoxVirtualBox is open source, different from VMs, and powerful, can run on

CentOS install ftp software in rpm Mode Centos 6.6-based First, mount the optical drive! [root@localhost zengyun]# mount /dev/cdrom ./rommount: block device /dev/sr0 is write-protected, mounting read-only1. install ftp software Go to the Packages

Add a root user for the ubuntu operating system and a root user for the ubuntu Operating System 1: After a virtual machine is installed and the Ubuntu operating system is installed, you can log on to the system and find that the user except the

How to install Skype for Linux Alpha in Ubuntu 16.04 Skype for Linux Alpha is an earlier version of Skype for Linux. Currently, it lacks Skype apps, but all features will be released in the final version. It can be installed globally, but currently

The basic usage of the zip command and the zip command The basic usage of the zip command is: Zip [parameter] [package file name] [Package directory path] Linux zip command parameter list: -A converts a file to ASCII mode.-F try to repair

Memory alignment allocation policy (including bit domain mode), alignment 1: Memory alignment definition: The memory space in the current computer is divided by byte. Theoretically, it seems that access to any type of variables can start from any

New excellent Qilin version released PK Microsoft WindowsGuideRecently, the 5-year support for Ubuntu/excellent Qilin 16.04 LTS is officially released. It is a Linux-based operating system, in China, local desktops and applications are implemented

Check 7 most widely used Linux desktop environments Diversity should be one of the best features of Linux. Users can constantly try out a variety of favorite and new gameplay and tricks, and find out the most suitable applications. Whether you are

Create daemon for dotnet in ASP. NET Core Linux (required knowledge)Preface In the previous article, we introduced how to deploy our asp.net core application in the Docker container. This article mainly describes how to create a daemon process for