Linux

Analysis of the Linux memory management mechanism, not from the above concepts, before introducing the above several concepts, first from the "in-depth understanding of the Linux kernel," the book excerpt from a few paragraphs on the above nouns

Directive Name: chmod Use Rights: All users How to use: chmod [-CFVR] [--help] [--version] Mode file ... Description: Linux/unix file access rights are divided into three levels: file owners, groups, others. Using chmod can To control how the file

Now the embedded device networking, there are two main modes: Ethernet RJ-45 interface directly plugged into the Internet network; 3g/4g module dial-up Internet access. With the continuous popularization of wireless terminal equipment, mobile phone

 command-Related: 1, view the diskDf-h2, view memory sizeFreeFree [-m|g] Press MB,GB to display memoryVmstat3, view CPUCat/proc/cpuinfoLook only at the number of CPUs grep "model name"/proc/cpuinfo | Wc-l4, View system memoryCat/proc/meminfo5,

Single-user mode setting password Enter the system by pressing the arrow keys to move the cursor, select the operating system, according to the letter "E", into the grub editing mode, the linux6 line "ro" changed to "RW" after adding "init=/

1. install required software: 1. If you cannot find VMware gsx Server 2.5, you can download it at www.vmware.com and apply for a trial serial number. You can also search for it at www.google.com, I believe you want it! 2. RedHat Linux 6.2 is an

Linux services)It is important for Linux users. Disabling unnecessary services can make Linux run more efficiently, but not all Linux services can be disabled. After installing centos Linux today, we found that many services were started when Linux

I have recommended how to set up the PPTP VPN service in the article "VPs initial experience and self-built VPN service". This article has made some modifications and supplements based on the original article, and added"How to connect to pptp vpn on

Original English meaning: tape archive Chinese meaning: tape ArchivingNoteSolution: A file packaging tool in Unix/Linux is used to pack many files together to form an archive file for archiving. It was originally designed for tape backup and can now

Basic tutorial for Embedded Linux (version 2nd)  Edit recommendations Authoritative book on Embedded LinuxAmazon five-star ratingComprehensive Analysis of Embedded Linux development, revealing a large number of technical Insiders      Basic

Overview: Linux users often have difficulty identifying device names of the same type, such as eth0, eth1, sda, and sdb. By observing the kernel device names of these devices, users usually know what types of devices they want, but do not know which

In large-scale network applications or applications with certain security requirements, you usually need to classify and review system logs. By default, each system will record its own logs on the local hard disk. Although there are also logs, there

It is particularly worth mentioning that there are many things worth learning about Linux servers. Here we mainly introduce Linux servers, including Linux servers. I will introduce the FTP installation method here. The installation method is faster

  Figure-LAMP LAMPRequiredWeb DevelopmentThe most popular tool, LAMP, which represents Linux-Apache-MySQL-PHP, has been the most popular Web development platform in the past few years, but new platforms such as Ruby on Rails and ASP. NET and J2EE

Introduction to various software installation methods and more friendly package management software on Linux platform, linux installation methodsI. Four Methods for installing and uninstalling software on Linux platform 1. Installing and

  Therefore, the method of attacking the city is the last resort. Know yourself, know yourself, do not know, do not fight -- Sun Tzu's Art of War   We will implement a tool for DDoS attacks at the application layer. in comprehensive consideration,

The mail system is an important part of Linux network applications. The complete mail system includes the underlying operating system, the mail sending proxy MTA, the mail distribution proxy MDA, and The Mail User proxy MUA. Currently, the main

Use a USB flash drive to install CentOS and write the boot on the USB flash drive. I found that I am a genius! Let's review the scenario: there is an old machine in the company. My colleague said it was okay to study how to install a Linux. I just

This article introduces how to install and configure nginx, mysql, and php-fpm instances through homebrew. 1.1. Environment selection:Re-configure php on mac. Originally, the mac was equipped with apach, php, and pgsql. If the figure is simple, you

  PS1 = '[/[/033 [01; 32 m/]/h:/[/033 [01; 34 m/]/W/[/033 [00 m/]/$'A brief explanation:The useful information is as follows:PS1 = '[/h:/W]/$'/H display the current host name/W display the current directory/$ Prompt[] For beautyThe result is as