Linux

An installation# # First download the source file with wget wget http://download.redis.io/releases/redis-3.2.9.tar.gz## I build a folder myself Mkdir/usr/redis mv redis-3.2.9.tar.gz/usr/redis# #解压 tar-zxvf redis-3.2.9.tar.gz#make

Install packagesDownload the JDK and Tomacat installation package, I use jdk-8u144-linux-x64.tar.gz and apache-tomcat-8.5.23.tar.gz here.Unzip the two installation packages separately, using the command TAR-ZXVFTAR-ZXVF

The connection process is represented by a series of States, which are:listen,syn-sent,syn-received,established,fin-wait-1,fin-wait-2,close-wait,closing,last-ack,time-wait and CLOSED. the meanings of each state are as followsclosed indicates no

Occasional UpdatesUse Terminal connection: SSH user name @ip then enter the username and passwordUpload file: SCP filename user name @ip: Server directoryThe program runs in the background:1. #./PSO > Pso.file 2>&1 &Explanation: The PSO is run

Why to install fonts.Because some fonts are copyrighted, multiple releases of Linux are free and open source. So Linux is packaged with no charge fonts.Another important reason is that your service needs to use fonts to complete the application

There are 5 stages of the Linux boot process1) boot of the kernel.2) Run init.3) Initialization of the system.4) set up the terminal.5) User Login system1. Boot of the kernelAfter the operating system takes over the hardware, it first reads the

1. BackgroundTypically there are scenarios where developers write code in Windows and then compile in the Linux environment, and we can use the Mount command to hook code directly into a Linux environment so that shared folders on Windows are like a

Daily development, on-line server system is generally Linux system, so, skilled in mastering the common command operation is particularly important1) View the operation of a service (for example, Redis)Ps-ef | grep Redis　　2) Check to see if a port

1. Overview2. Build process2.1 See if there is a. SSH directory2.2 Creating the. SSH Directory2.3 Generating a public key pair2.4 Generate validation files and modify permissions2.5 Summary1. OverviewAfter the Linux system, the SSHD service will

1. Hard drive: Serial port (SD), and port (HD)Partition type: Primary partition (maximum of four) Extended partition (does not save data, where several logical partitions are established) logical partitioning (multiple, in fact only

Download source codeBoost_1_66_0.tar.gzGenerate compilation Tools# tar axf boost_1_66_0.tar.gz# cd boost_1_66_0# yum install gcc gcc-c++ python-devel cmake -y# ./bootstrap.shCompiling a 64-bit boost library# ./b2 install --with-system --with-thread -

User identity and file permissionsTo differentiate by UID:Administrator UID is 0: Administrator user of the system.System User UID is 1~999:linux system in order to avoid the vulnerability of a service program by hackers to the entire server, the

1. head logo [[email protected] ~]:Where the Pecool representative login user, the demo represents the system name, ~ Represents the current user is currently in the directory, the specific directory structure is/home/pecool.2.ls/:The ' ls ' English

passwd 修改用户密码Syntax format: passwd "option" "Username" passwd [options] [user name]Attention: passwd command and subsequent options and user names, there must be at least one space between each element Root user can modify any user

1. Install JDK1.1. See if OPENJDK was previously installed:RPM Package Manager (RPM bundle manager)Command: RPM-QA | grep javaTranslation: rpm--search Specifies if RPM package is installed-qa--query all query all|--The result of the previous command

To see if the port is enabledtelnet localhost 8888Start a port, flat and pass the data through this portnc-l localhost 9999 ViewSs-anput | grep 9999To see which process the device is usingLsof-/DEV/SDB1Common shortcut keysCtrl+l = ClearCTRL +

wrote a startup program to tune the JVM's script#!/bin/Bashmem= ' Free-m | grep Mem | Awk'{print int ($ * 90/100)}'' java_opts="-server \-xmx${mem}m-xx:+useg1gc-xx:maxgcpausemillis= $-xx:parallelgcthreads=4 "App_home=' dirname $ (PWD) ' App_jar_name=

1. Turn off SELinuxSestatus //Check to see if the Setenforce 1//Turn on Selinuxsetenforce 0//Turn off SELinux2.VSFTPD Common Configuration#允许匿名服务器anonymous_enable =yes# Local user is allowed to log on Local_enable=yes #本地用户允许上传write_enable =yes#

Linux to create a garbage collection station, to solve the mistake of deleting the trouble--delete safe Delete commandCut the crap and go straight to the subject.1. Create a simple Delete command script (the Chinese character set used by Arnold's

Make Windows Startup disk on Linux注意： U盘在Linux中的标签(依具体情况而定：执行df查看)U盘 ----- /dev/sdb4Format USB flash drive to set up the boot partition Installing key Tools Ms-sys Create an MBR partition on the USB drive by executing the following