Linux

Note: If you do not have root privileges, use--prefix to specify the installation path./configure--prefix=/home/work/tools/pcre-8.xx======================================================Recently learning Nginx,nginx rewrite relies on the Pcre

Host command Function descriptionThe host command is a common domain name query tool, and the nslookup, dig functions are basically the same, using the following: host [parameters] [options] Common parameters

Docker is an open-source application container engine that allows developers to package their applications and dependencies into a portable container, and then publish them to any popular Linux machine or virtualize them. Containers are completely

Linux under the PS command detailed1. Running (running or waiting in the running queue)2. Interrupt (dormant, blocked, waiting for a condition to form or receive a signal)3. Non-interruptible (receive signal does not wake up and not run, process

4. Configure e-Mail transfer *****************# #1. Basic e-mail Configuration # #Configure The DNS service to add MX recordsTwo servers configure /ETC/POSTFIX/MAIN.CF files separately650) this.width=650; "src="

The Linux Performance Network monitoring tool (IOSTAT/SAR/MPSTAT) needs to be installed Sysstat this package.Tool One, iftop (View network bandwidth, (must be installed from Epel source)1) The dependency packages required by Iftop are as

Ffplay playback relies on the SDL library, and SDL (Simple DirectMedia Layer) is a set of open source cross-platform multimedia development libraries. First compile the SDL and then compile the ffmpeg. SDL compiled

SSH Secure ShellSSH 22/tcpTraditional Network service programs, such as:FTP, pop, andtelnetAre inherently unsafe because they are used on the networkplaintextsend passwords and data, and people with ulterior motives can easily intercept these

The file parameter is actually a directory that reports all the files in that directory. If the file parameter is not provided, the DU command uses the files in the current directory.If the file parameter is a directory, then the number of reported

When it comes to user rights in Linux you have to talk about the composition of the operating system, the general operating system is the hardware, kernel, library, Shell (including GUI (graphical user interface) and CLI (command line interface) Two,

1. What is Framebuffer?(1) framebuffer frame buffer (one screen data) (FB) is a virtual device in the Linux kernel, Framebuffer provides a unified standard interface display device to the application layer. Frame buffer (framebuffer)is an interface

One: The accident processIn the company a quasi-production environment (fortunately is quasi-production) due to the company a service log level is not adjusted to error, resulting in a large number of logging to the/root directory (note that/root is

1. ConfigurationVim/etc/mail.rcAdd the following to the end of the fileSet from=[email protected]smtp= "Smtp.qq.com"Set smtp-auth-user= "[email protected]"Smtp-auth-password="123456 "Set Smtp-auth=loginDescription:From: The sender that appears when

Many children's shoes for if you are unfamiliar with the commands for uploading and downloading at the character terminal, here's how to upload and copy files via SFTP and SCP commands.First look at the SFTP command:For example: Now I have two VMs,

Original link:Http://blog.chinaunix.net/uid-692788-id-2681136.htmlA jar package is a compressed document that is unique to Java, and you can actually interpret it as a. zip package.Of course there is a difference, there is a meta-inf\manifest in the

Linux (11) _ Apache server, linux _ apache Check whether apache is installed. Rpm-qa | grep httpd Install yum install httpd Service httpd start Test Apache server Note: Firewall Configuration   This is the default firewall policy. It

Linux (7) _ shell script programming, __shell Script Programming I. What is a shell script? In addition to a command interpreter, shell is also a programming language. A program written in shell is similar to a batch processing program in DOS. It is

Thrift lua implementation and thriftlua implementation The system is being upgraded recently. The background data is differentiated by city. Worried about the stability of the new system and the accuracy of new data, some cities are planned to adopt

Vi (Visual Editor) Common commands, vieditor Visual Editor is an effective and relatively simple full-screen editing tool that allows you to create and edit files, including documents, reports, and text, just remember a few basic commands, you can

Linux basics-in-depth discussion of Unit 7 users, groups, and permissions How to View File PermissionsLs command detailsRoot User and file security controlWhat is a root user?User categoryFile Operation permissionCharacter representation of file