Linux

In the application, many times will call to the system call to complete some operations, but the system call is in the kernel state to invoke, the user state of the application is not directly called to, then the operating system how to deal with

The general prompt is as follows:[email protected]:~> whoamiimaohwwhoami:/home/imaohw # whoamirootwhich imaohw is the current user name whoami is the current host name ~ Home directory for the

I am learning Linux operations, in the framework of the need to virtual multiple servers and configure a dual network adapter, when the configuration of the dual-NIC IP is found, the system will automatically select a network card as the default

Linux Regular expressionsFirst, the Linux text Lookup command** 对grep命令的介绍** 作用：文本搜索工具，根据用户指定的“模式”对目标文本逐行进行匹配检查；打印匹配到的行 模式：由正则表达式字符及文本字符所编写的过滤条件 **grep 命令** 语法：grep [选项] (参数) 选项： grep --color=auto ：对匹配到的文本着色显示（CentOS7里默认显示）

1. LastShow logon status for all users2, LastlogShow those users who have logged in, those users who have never logged in3, TracerouteProbe the path of the site that I specified to track the route. such as: Traceroute www.baidi.com4, NetstatDisplay

How to install memcached in linux, linuxmemcached Install 1. Install libevent before installing memcached. the version I use here is: Libevent-2.0.22 Memcached-1.4.25 First, upload the two installation files to the Linux server. before extracting

Linux time setting and iptables command, linuxiptables commandLinux time settings and iptables command date and time settings Timedatectl: Displays the current time zone, time, and other information. Eg: [root@localhost zhang]# timedatectl

Linux Server File automatic backup script details, linux backup script detailsLinux Server File automatic backup script #! /Bin/bash # Website name WEB_NAME = "website" # Database info DB_NAME = "webdb" DB_USER = "user" DB_PASS = "password" # Backup

Build your own blog (WordPress) and lnmpwordpress by using LNMP Hello everyone, what we bring today is to build a blog website of our own. When I see this article, I will definitely know what it is called a blog. So I will not introduce it here. I

Cobbler unattended installation and cobbler Unattended InstallationI. Introduction to Cobbler Cobbler is a boot server that can be used to quickly install and reinstall physical servers and virtual machines through network startup (PXE). It supports

How does one modify the size of the root partition (/) in Ubuntu? How does one modify the size of the root partition (/) in Ubuntu. 1. Tools used: gparted (1) In gparted, operations on a partition can only affect the two adjacent partitions, and

Linux DHCP principle and linuxdhcp PrincipleDHCP DHCP (Dynamic Host Configuration Protocol) is a LAN network Protocol that uses UDP Protocol for two purposes: automatically allocate ip addresses, subnet masks, gateways, DNS, (batch network

Establish a connection between Git and GitHub in Linux, gitgithub Git is an open-source distributed version control system, while GitHub relies on Git's code hosting platform. GitHub uses Git's extremely powerful clone and Branch functions to allow

How to log on to a Linux machine and log on to a linux machine Host Name IP address Centos-01 192.168.150.128 Centos-02 192.168.150.129 CentOS-01 connection CentOS-02 (standard

Common GRUB4DOS Problems and Solutions Problem 1: it is always displayed that it is started from usb but it does not move. The reason is that the MBR and PBR of GRUB4DOS are not installed.Question 2: The following codeTimeout 10Default 0Color

Summary of daily commands used in Linux and summary of linux commandsThis article is a routine linux Command, which can be a thousand miles away! System commands 1. Get the linux timestamp: date + % s 2. Convert the timestamp to the local time:

[Learning and understanding] The system calling process in Linux, In applications, system calls are often called to complete some operations, but system calls can only be called in kernel mode, applications in user mode cannot be called directly.

On Linux, how does one enable unactive users to log out automatically? Let's imagine this scenario. One of your servers is often accessed by multiple users in different systems on the network. Some users may forget to log out of the session to keep

Set the root user logon GUI in Ubuntu 17.10 After the latest Ubuntu 17.10 version is installed, the methods for logging on to the GUI by the root user in earlier versions are different (including the methods for Ubuntu 16.04 cannot be used here ).

Install the Cross stitch software KXStitch in Ubuntu KXStitch 2.1.0 is a free open-source Cross stitch pattern software, which has been released recently. The following describes how to install KXStitch 2.1.0 through PPA in Ubuntu 18.04, 17.10, and