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Linux wget is a tool for downloading files. It is used on the command line. It is an essential tool for Linux users, especially for network administrators. They often have to download some software or restore and back up from the remote server to the local server. If we use a virtual host to handle such transactions, we can only download it fro ...

Introduction to drbd 1. What is DRBD? DRBD (Distributed Replicated Block Device) is a software implemented, non shared storage and replication solution that mirrors the contents of block devices between servers. DRBD is a mirror block device that mirrors the same data block by data bit. 2. Difference between DRBD and RAID1 RAID1 also real ...

File attribute components (8 parts in total) ll -i /etc/hosts 16778299 - rw-r--r--. 1 root root 158 6 July 2013 /etc/hosts 1)In file properties inode(index node): Inodes locate data storage locations faster==Catalogue of books 2)File type information:- Ordinary file d Catalog file l Soft link file 3)File permission settings: r read w write x E ...

1. Preface A single machine or a few machines can be installed one by one through u disk. However, when hundreds or even more machines in the LAN need to install the operating system, it is obviously not advisable to install one by one. At this time, the time-saving and labor-saving automatic PXE method comes in handy. 2. PXE introduction PXE ...

Linux -- basic command usage (Part 2) 1, linux user 1. What are users Users are used to run some processes and own some files or directories. In Linux, users are divided into three categories: root user , system users, ordinary users. The user is uniquely identified by UID, and the root user UID is 0. The system user UID range is 1-999. The ...

Windows operation process Function analysis Create process Under Windows, a process can be created by calling createp process() system. The parameters passed in and their meanings are as follows BOOL CreateProcess( 　LPCTSTR lpApplicationName, // Application name 　LPTSTR lpCommandLine, // Command line string 　LPSECURITY_ATTRIBUTES l ...

This article is reproduced from: https://zhuanlan.zhihu.com/p/68378809 Author: tangtao Hangzhou University of Electronic Science and technology www.promiselee.com cn/tao introduce This article will show you GuiLite How it works, what the architecture looks like, and then you'll understand why GuiLite is the smallest and simplest GUI library. ...

struct page Page is the smallest unit of physical memory managed by the linux kernel. The kernel divides the whole physical memory into thousands of pages according to page alignment. In order to manage these pages, the kernel abstracts each page into a struct page structure and manages each page state and other attributes. For a 4GB memory, t ...

welcome 1, Install Ubuntu system Download Ubuntu system files Ubuntu's official website only matches versions 21 and 20, so I found Ubuntu 18 matching raspberry pie on the Internet 04.5 server version, click the link to download directly. Ubuntu Server 18.04.5 for Raspberry Pi 4 64-bit : http://cdimage.ubuntu.com/releases/bionic/release/ ...

Command basic format command prompt [root@localhost ~]# root: represents the currently logged in user.Localhost: short host name of the current system (use the "hostname" command to view the full host name: localhost.localdomain)~: represents the current directory, the tilde represents the home directory, the super user home ...