Linux

1. What is INotifyINotify is the Linux 2.6.13 kernel to start supporting features, can monitor the specified file or directory changes and generate messages, generally combined with rsync, to achieve real-time file synchronization.2. Installation of

1. Registering a soft interrupt is of course through OPEN_SOFTIRQExamples are as follows:[CPP]View PlainCopy void __init init_timers (void) { int err = Timer_cpu_notify (&TIMERS_NB, (unsigned long) cpu_up_prepare, (void *) (long)

18th Chapter Commissioning First, the preparation before the start of commissioning1. Getting Started Bug The version that hides the bug Knowledge of related kernel code The key to successful debugging is the ability to

Security settings Classification Command Options Annotations Security PolicySELinux Setenforce Number (0,1) Set SELinux status, 0 off, 1 on Getenforce 　 Displays the

Download websiteDownload the required versionExtractTar-xzf apache-maven-3.2. 3-bin. tar.gz Setting environment variablesEnvironment variables are divided into user variables and system variables.User Variable profile: ~/.BASHRC (hidden files in

File packaging and compression Command Options Annotations Example Compress Filename Compresses the specified file in a compressed format of *.Z Compress Install.log -D

The kernel is designed in two ways: single-core and micro-core, both of which have pros and cons, and a comparison of the two can be found in wikis. Windowds and Solaris use a microkernel structure.The Linux kernel uses a single kernel structure,

1. Get the IP addressWindows:ipconfigLinux:ifconfig2. Go to the foldercd folder path3. RestartShutdown-r time (when )Reboot immediate Restart4. View the directory structurell query folderLl-a View All FilesLsDir5. View the current pathPwd6. Clear

18th Chapter Debug18.1 ready to start Things to prepare for:L A BUG: Most bugs are usually not reliable and well-definedL A kernel version that hides bugs: Find out which version of the bug first appearsL knowledge and luck related to kernel

There are many reasons why ping does not work, but the direct representation of the network is not successful communication;There are 3 main network modes used when building the interaction between the virtual machine and win: Bridging Bridge

1. The throughput rate here refers specifically to requests processed within the Web server unit time. 2. Premise of stress test:1> number of concurrent users 2> total requests 3> Request Resource Description 3. Average user request Wait time the

As we all know, Apache Port 80 is the system reserved port, if it is started by other non-root users, the error is as follows: ( -) Permission Denied:make_sock:could not bind to address [::]: the( -) Permission Denied:make_sock:could not bind to

Add Nginx to System service nginx (start | stop | restart | reload), nginxreload Vim/etc/init. d/nginx 1 #! /Bin/bash2 # nginx Startup script for the Nginx HTTP Server3 # it is v.0.0.2 version.4 # chkconfig: 2345 30 305 # description: Nginx is a

The AMD graphics card driver will be open-source and support Linux systems. AMD has just made an important decision for the future of the company to become open-source. In addition to announcing that the Linux graphics card driver is open-source,

Linux and linux wildcardsOverview This section describes how to use linux wildcards. Skillful Use of wildcards can improve work efficiency and simplify some complex processing steps.  Body Test Data touch a a6.log abc.log ac.txt b c c5.txt x.log A"*

Use of relative paths, absolute paths, and cd commands Cd (change directory) directoryJump to the specified directoryThere are two types of path definitions: absolute path (absolute) and relative path (relative)Absolute path: the file name or

Install git in Centos 6.7 Written in front: the blogger is a linux hacker. As soon as he got in touch, he was ready to install git on linux and encountered various small issues.1. From # to $, create your own user2. yum failure3. Solve the Problem

Install lemp on CentOS Generally, the Nginx system architecture is used for large website construction environments, which is more vulnerable to threads and pressures than Apache. However, Apache environments are sufficient for general blogs and

Quick configuration of Rsync file backup service in centos Rsync simple and quick Configuration Rsync supports full and incremental local or remote data backup. An rsync is equivalent to scp, cp, rm, but better than each of their commands. Because

Create multiple SVN version Libraries under OcentOS Create multiple SVN version Libraries under OcentOS The SVN server version library has two formats, One is FSFS, One type is BDB After a file is uploaded to the SVN version library, the uploaded