• Centos8 Yum / DNF method for configuring domestic sources


    CentOS 8 changed the package installer, canceled the configuration method of yum, and used DNF as the installer instead. Although the installation mode of the software package has been changed, DNF is still compatible with the use of Yum configuration files and commands. However, I don’t know how long this compatible configuration will last and […]

  • Centos8 installation of jdk8 / java8 tutorial (recommended)


    preface At first, I wanted to download it with WGet on centos8, then decompress it and configure environment variables. However, I failed to do it well for a long time, so I gave up and used Yum to install it directly. 1. Installation method Use Yum to install directly on centos8, and the environment variables […]

  • Implementation of centos8.0 network configuration


    1、 Differences between CentOS 7 and CentOS 8 network configurations: CentOS 8.0.1905 is installed in VMware Workstation 15 pro, but it is not found in the process of configuring IP address network.service And there is no script file in / etc / sysconfig / network scripts directory, which is also supported in CentOS 7 network.service […]

  • Explain the implementation of static IP configuration in centos8


    After installing CentOS 8, the following error will appear when restarting the network The error information is as follows: Failed to start network.service: Unit network.service not found. Unable to restart the network service because it cannot be found network.service Network services. On rhel8 (including centos8), you can’t see any script files in / etc / […]

  • How to set centos8 interface language? How to set CentOS user interface language


    How does centos8 set user interface language? How to set the interface language? Now let’s take a look at the detailed tutorial. 1. In GNOME desktop environment, right-click in the blank space of the desktop to select【set up】。 2. In【set up】Midpoint【detailed information】。 3. After that【user】。 4. First, click to select the user to be set. […]

  • How to reset and clear the screen in centos8


    Screen cleaning generally refers to clearing words in command line mode, because too many words will be messy. So occasionally you need to clear the screen. Different operating systems have different commands to clear the screen. In DOS or windows CMD, you can clear the screen by pressing CLS enter. The command under Linux is […]

  • How to set character encoding in centos8 system?


    How to set character encoding in centos8 terminal? Before we introduced the use of command settings, today we will take a look at the graphical interface to set the method. 1. Point【activity】。 2. Point sidebar【terminal】Icon button, open【terminal】Procedures, 3. Open【terminal】After the program, click on the menu bar【terminal】Button. 4. Click in the drop-down menu【Set character encoding】。 5. […]

  • How does centos8 turn off the terminal ring? How does CentOS system cancel the terminal ring


    If centos8 wants to cancel the terminal ringing, how can it operate? Now let’s take a look at the technique of turning off the terminal ring in centos8. 1. Point【activity】。 2. Click Run【terminal】。 3. Click on the menu bar【edit】Button. 4. Drop down menu point【Preferences】。 5. Found【Terminal ring】。 6. Will【Terminal ring】You can cancel the check and […]

  • Centos8 using Yum to install rabbitmq tutorial


    Enter / etc/ yum.repos . D / folder Create rabbitmq- erlang.repo file The contents are as follows [rabbitmq-erlang] name=rabbitmq-erlang baseurl=https://dl.bintray.com/rabbitmq-erlang/rpm/erlang/21/el/7 gpgcheck=1 gpgkey=https://dl.bintray.com/rabbitmq/Keys/rabbitmq-release-signing-key.asc repo_gpgcheck=0 enabled=1 establish rabbitmq.repo file The contents are as follows [bintray-rabbitmq-server] name=bintray-rabbitmq-rpm baseurl=https://dl.bintray.com/rabbitmq/rpm/rabbitmq-server/v3.8.x/el/8/ gpgcheck=0 repo_gpgcheck=0 enabled=1 Installation command yum install rabbitmq-server Rabbitmq related commands open service rabbitmq-server start close service rabbitmq-server stop View […]

  • Centos8 installation of nginx detailed tutorial (text)


    Nginx, pronounced “engine x,” is an open source, high-performance HTTP and reverse proxy server that handles the load of some of the largest sites on the Internet. It can be used as a stand-alone Web server for HTTP and non HTTP servers, load balancer, content caching and reverse proxy. Compared with Apache, nginx can handle […]

  • Centos8 custom directory installation nginx (tutorial details)


    1. Installation tools and libraries #PCRE is a Perl library, including a Perl compatible regular expression library. Nginx’s HTTP module uses PCRE to parse regular expressions #Zlib library provides many ways to compress and decompress. Nginx uses zlib to gzip the content of HTTP package yum -y install gcc-c++ pcre pcre-devel zlib zlib-devel openssl openssl-devel […]

  • How to install and configure the postfix mail server on centos8


    Postfix is a free and open source MTA (mail transfer agent), which is used to route or deliver e-mail on Linux system. In this guide, you will learn how to install and configure postfix on CentOS 8. Laboratory settings: System: CentOS 8 server IP address: Host name: Server1 crazytechgeek.info (make sure the domain name […]