Author: openEuler
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The Energy Conversion of the Power Supply and Distribution System
Electric energy is an important energy for modern people’s production and life, and it belongs to secondary energy.In the power supply and distribution system,there are various kinds of energy conversions.This post introduces how to build a power supply and disribution system,how to design the circuit and main components of the circuit. There many energies around…
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The Components of Linux Operating System
1.The Fundamental of Operating System Operating system controlling and managing the whole computer system and their hardware/software.In a computer,the operating system connects hardware and software. What is an Operating System 2.The components of Linux Operating System 2.1.Directory In the Linux operating system,everything are files.Everything originated on the “/” directory,every files under the “/” directory. /bin(Binary):The…
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The Fundamental of Network
1.The Fundamental of Open System Interconnection(OSI) Open system interconnection is a module which defined the standard of the interconnection of computer.It’s the framework for designing and discribing the computer network communications.It consists of 7 parts:physical layer,data link layer,network layer,transport layer,session layer,presentation layer,application layer. 1.1.Physical Layer Physical layer is the first layer of OSI.It mainly building,maintaining,canceling…
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The Fundamental of Zabbix Monitoring System
Zabbix is a monitoring system based on web interface which provides distrubuted system monitoring and network monitoring.Zabbix is an open-source software.It can monitor a cluster,an URL,a server,and so on. 1.How to build a Zabbix system? First,you should prepare and build an enviorment in your server.An enviorment consists of operating system,web server,database,programming language.You can choose the…
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When the website(WordPress) is not accessible,how to solve the problem?
Premise:The LAMP enviorment and WordPress website has been successfully deployed.But now,the website is not accessible.Can’t visit the website by ‘IP Address:Port/content(directory)’ or ‘Domain Name:Port/content(directory)’. This is the checklist: 1.Input ‘systemctl status httpd’ in the terminal of the Linux operating system,check the status of Apache.Is the Apache webserver running?Is the other webserver(like Nginx,and so on) running?When…
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How to build a LAMP Enviorment?
A LAMP enviorment mainly consists of Linux operating system,Apache web server,Mysql language and PHP language.You can refer manuals to deploy it.After the deployment of LAMP enviorment,you can construct a website like WordPress,construct a monitoring system like Zabbix,and so on. First,it based on Linux operating system.You can prepare a Linux server or a virtual machine.There are…