Linux

In addition to the previous article "Linux Common Network Tools: Route scanning traceroute" introduced in the Traceroute, General Linux also built-in another common route scanning Tool mtr.The MTR is better used in some ways than traceroute, and it

Aside from: The Linux kernel from 2.x and 3.x to now the latest 4.x changes very large, the most intuitive expression is that many of the book's kernel code has been unable to continue to use directly, so look at the new source is very

Iredmail is an open-source, free mail server project that is published under the GPL (V2) protocol. Official website www.iredmail.org (domestic not accessible), can be accessed through www.iredmail.com.Iredmail is a good Post Office Server free

Overview of Named PipesNameless pipes, because there is no name, can only be used for inter-process communication of affinity (for more details, see the Nameless pipe). to overcome this shortcoming, a named pipe (FIFO), also known as a pipeline,

Installation Method: Source code compiled and installedSoftware: cmake-3.2.2.tar.gz: http://www.cmake.org/files/v3.2/Installation PrerequisitesThe system already has g++ and ncurses-devel installed, if not installed using the following

Add user Two-step walk: 1.useradd username 2.passwd PSRights Management CommandsCommand name:chmod->>change The permissions mode of a fileCommand path:/bin/chmodExecute Permissions: All UsersSyntax: chmod [{u g o} {+-=}{rwx}][file or directory][mode

Facl:filesystem access Control list--file systemSave additional access control permissions with file extension propertiesSETFACL: Set File extension permissions-M: Set U:uid:perm G:gid:perm example:setfacl-m g:nichol:rw inittabD:u:uid:perm

Input character头文件#include 函数原型int*fp);从文件流中读取下一个字节，并作为字符返回到达文件尾或出现错误时，返回EOFintgetc*fp);与fgetc()功能类似，但可实现成一个宏int getchar(void);相当于getc(stdin)Output character header file #include function prototype int fputc (int c, file *fp); writes a

Linux commands for managing files and directories Command Function Command Function Pwd Show current directory Ls View the contents of the directory Cd Change your

the watchdog (watchdog) is divided between the hardware watchdog and the software watchdog. Hardware watchdog is the use of a timer circuit, its timing output is connected to the reset end of the circuit, the program in a certain time range to the

Linux disk and file system Formatting Because each file system settings set the file attributes/permissions are not the same, in order to store the data, you need to format the partition, such as in the Linux file system, there is,,

1. Display environment Variables home$ echo $HOME/home/Redbooks2. Set a new environment variable hello$ export HELLO="hello!"$ echo $HELLOHello!3. Use the env command to display all environment variables $

One Linux command per day (3): pwd commandBird's home 164 pages, now only to find the bird Brother's book a lot of things are not complete.Copy the page directly, as if the code format is scrambled, please go to the original link to viewin Linux,

Makefile Writing RulesIn a makefile, it usually contains the following content:1 The target object, usually the target file or executable file, that needs to be created by the Make tool2 files that are dependent on the target body to be created

Ln is another very important command in Linux, its function is to create a file in another location with a non-link, the most common parameter of this command is-s, the specific use is: Ln–s source file Destination file. when we need to use the

Linux terminal and command supplement, Linux terminal command supplementWhoami: print a valid user IDWho: displays which users are logged on to the systemWho-r displays the running levelWho-H display field nameW: Show who has logged on and what are

Linux regular expression-POSIX character class POSIX standardizes the meanings of Regular Expression characters and operators. This standard defines two types of Regular Expressions: Basic Regular Expressions (BRE), grep and sed use this regular

Ansible-Tower Quick Start-1. Overview [translation], ansibletower Overview Tower Ansible-Tower is a web interface of Ansible and uses rest api as the endpoint for access. By using open-source orchestration engine, whether it is to share operation

Linux configuration file management and linux configuration file management I. Introduction Reference: https://robots.thoughtbot.com/rcm-for-rc-files-in-dotfiles-repos Http://dotfiles.github.io/   Ii. Installation 1. rcm Installation

Server Security Dog Linux V2.5 is launched to make the user server more secureAre you still not used to using Linux? Are you still struggling to integrate Apache and Nginx? Server Security Dog Linux V2.5 is transformed. A new protection software