Linux CentOS MySQL database installation and configuration tutorial, centos installation and configuration tutorial
Notes on installing the mysql database
A) download the mysql source installation package: wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
B) install mysql Source: yum localinstall mysql57-community-release-el7-8.noarch.rpm
I
Linux Basic tutorial Linux password-free ssh login SettingsBrother LianOverviewin some common devices ssh, SCP, do not enter the password can save a lot of time. Generate keySee if there is a local key, if there is, do not generate, otherwise it will affect the previous device.Copy the code code as follows :(brother even Lin
bindings on the RS side, do not set 0 even if the VIP bindings are stoppedif [${#VIP [@]}-le 1];thenecho "0" >/proc/sys/net/ipv4/config/lo/arp_ignoreecho "0" >/proc/sys/net/ipv4/config/lo/arp_announceecho "0" >/proc/sys/net/ipv4/config/all/arp_ignoreecho "0" >/proc/sys/net/ipv4/config/all/arp_announceFi
Inspection of the service provided by the RS node itself
Auxiliary exclusion Tool Tcpdump Ping
Load balancing and reverse proxy clusters
2.4.4 LVS make Error[[email protected] i
Many books on Linux have written a lot of things about Linux in the previous chapters , but the reader has not officially started to enter the Linux world for a long time , which leads them to Linux Lost some interest, and threw away a thick book . LinuxHistory does need to be understood by the reader, but not knowin
software, because of Linux operation permissions problem, even if FFmpeg has the WWW permission settings, However, since FFmpeg depends on the library file is not allowed to run WWW users, so php run this program will still report 127 or 126 errors, through the LDD command can see the ffmpeg command depends on the library situation.At this point, you must set the FFmpeg dependency library on line. The specific method belongs to the
Linux Tutorial: how to view weather forecasts under Linux Command lines
Q: I often view weather forecasts on Linux desktops. However, is there a way to query weather forecasts without using a desktop plug-in or a browser in a terminal environment?
For Linux Desktop Users, th
the locate command is used to search for files that are not in the/tmp directory.Then we describe the directory where the search command is located and the alias information which, the directory where the search command is located, and the Help document path Whereis, the last command grep and the previous search file or directory command is different, grep is to search for a matching string in the file, is in the file content search, This command is used more later, you need to remember the usa
To partition large files in Linux , such as a 5GB log file, it is necessary to divide it into smaller files, which are segmented to facilitate reading by the normal text editor.Sometimes, the need to transfer large files of 20gb ,Linux training Tutorial pieces to another server, you also need to split it into multiple files, which makes it easy to transfer data.T
The improved auto-show weather report applet (available in both Linux and Windows environments)-PHP application-PHP Tutorial -. This improvement mainly adds image acquisition and provides a complete function for obtaining remote files. The code is as follows :? $ Fcontfile (www.bjmb.gov. cntoday. as this improvement mainly adds image acquisition and provides a complete function for obtaining remote files. T
Basic Linux tutorial ---- install software in LinuxIntroduction
This article introduces several methods for installing software in Ubuntu and the use of apt and dpkg tools.1. Install software on Linux
There are usually three methods for installing software on Linux:
Online Installation
Install deb software package f
File transmission tutorial between linux and windows, linux file transmission
File transmission between linux and windows
Install lrzsz but have requirements on ssh client tools. You must use xshell or secureCRT
Sz [file name] transfers files in linux to windows
Rz w
Windows system is quite simple, a lot of methods, but Linux has become a long-standing problem, under Windows used to QQ, to the Linux without QQ, how to do it, PRT SC sysrq key fullscreen again to cut it, you out, It's no problem learning this trick Linux.1. Open TerminalDifferent Linux open methods, desktop version c
Linux getting started Tutorial: How to manually create a Linux User
When we want to create a user, we immediately think of The useradd command or create a user in the image. However, we do not really understand how to generate a linux User, we know that everything is a file in linu
First, view LinuxKernel version Commandmethod One:cat/proc/versionUsage: [Email protected] home]# cat/proc/versionmethod Two:uname-aUsage: [Email protected] home]# uname-a Second, view Linux command for system versionmethod One:lsb_release-aUsage: [Email protected] ~]# lsb_release-aNote: Use this command to list all version information and this command applies to all Linux distributions, including RedHat,S
Linux getting started Tutorial: Linux boot process analysis
Linux boot process analysis
IntroductionThe boot process is divided into the following six steps: BIOS, MBR, GRUB, Kernel, Init, RunLevel, RunDefinition
BIOSPress the power switch to start BIOS loading and execute MBR (Master Boot Record)
BIOS indicates the Ba
log.log1 2012-012 2012-02345 ======[Email protected] test]#Example four: Using here doc to generate filesOutput:Copy CodeThe code is as follows:[Email protected] test]# Cat>log.txt > Hello> World> Linux> pwd=$ (PWD)> EOF[Email protected] test]# Ls-l Log.txt-rw-r--r--1 root root 3710-28 17:07 log.txt[Email protected] test]# Catlog.txtHelloWorldLinuxPwd=/opt/soft/test[Email protected] test]#DescriptionNote that the Bold section, here Doc, can be used f
Linux File lock: synchronization between processes tutorial, linux File lock
I. Scenarios
In addition to semaphores and shared memory (atomic operation) synchronization, multi-process synchronization can also be implemented using File locks.
II. Implementation
There are two methods in linux: flock () function and
Linux Tutorial: Xvidcap, a video recording software in Linux
1. Introduction to xvidcap
In Linux, Xvidcap is a good choice for video recording. Xvidcap is a small tool that records operations on the screen and saves them as videos. For those who need to make product demos and teaching, this screen recorder is very prac
Linux File (folder) creation, copying, moving (rename), deleting command tutorial, linux rename
Ubuntu
Ctrl + Alt + T (Terminal)
1. Create (mkdir)
Syntax format: mkdir [Option] DirName
The [Options] in the Command generally have the following two types:
-M is used to set the access permission for the new directory. You can also use the chmod command to set the ac
Linux Command –DF command
Linux Command –du command
Five, Linux System Management Class command detailed
Linux Command –ps command
Linux Command –kill command
Linux Command –top command
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