RedHat7.9 installs Oracle11g

This is a process demonstration of installing Oracle11g in RedHat7.9. For those who have not successfully installed it before, it is because you have not seen my article. This article is very detailed and has many steps. Follow this process to install it step by step. , there must be no problem! I will not […]

[Having fun with Redhat Linux 8.0 series | Managing files from the command line (2)]

Today I will continue to share some knowledge about Redhat Linux 8.0. Remember to pay attention and it will be updated~ Specify file by name Learning Objectives Ability to specify the relative and absolute location of files relative to the current working directory, determine and change the working directory, and list the contents of a […]

Database – Install mysql under Linux (redhat9.0 version)

One main installation steps 1. Download the installation package online: wget https://downloads.mysql.com/archives/get/p/23/file/mysql-5.7.28-1.el7.x86_64.rpm-bundle.tar 2. Uninstall mariadb The Linux system will automatically carry a database, we need to uninstall it Mariadb can be viewed with the following code: rpm -qa | grep mariadb Uninstall mariadb: yum remove mariadb-libs-5.5.52-1.el7.x86_64 -y Check again whether the uninstallation is successful: rpm […]

redhat 6.1 test environment installation yum

redhat 6.1 test environment installation yum record 1. Create a new virtual machine 1.1 Customize a virtual machine Create a custom virtual machine Select hardware compatibility Create a blank hard drive and later select the iso file to create the system. Select operating system type Name the virtual machine Select processor configuration Select virtual machine […]

OpenStack RedHat build

1. Preparing the environment The control node and computing node must enable the virtualization engine Intel VT-x or AMD-V, and the control node will be reused as a computing node in the future; the virtual machine configuration can be adjusted according to the actual situation; be sure to configure DNS, otherwise the installation process will […]

Red Hat Enterprise Linux (RHEL) 6.4 installation, redhat6.4 installation

1. Download address Red Hat Enterprise Linux (RHEL) 6.4 DVD ISO Thunder download address http://rhel.ieesee.net/uingei/rhel-server-6.4-x86_64-dvd.iso 2. Create a virtual machine 3. redhat installation Choose the first install Skip skip check Language selection Simplified Chinese keyboard select default Choose a base storage device ignore all data set root password Create custom layouts Click “Create” to install […]

Centos/Redhat_7.9 install mysql-5.7

1. Binary installation mysql-5.7.39 1.1 Download mysql Visit: https://downloads.mysql.com/archives/community/ https://downloads.mysql.com/archives/get/p/23/file/mysql-5.7.39-linux-glibc2.12-x86_64.tar.xz 1.2 Uninstall the system’s own database rpm -aq | grep mariadb mariadb-libs-5.5.68-1.el7.x86_64 rpm -e –nodeps mariadb-libs-5.5.68-1.el7.x86_64 1.3 Install and configure mysql Install mysql dependency package yum install -y libaio libaio-devel Create users and groups useradd mysql -s /sbin/nologin Decompress data mysql cd /usr/local/src tar -xvf […]

redhat9—MySQL8 single table query

Requires: 1. Display the basic information of all employees. 2. Query the department numbers of the departments to which all employees belong, and do not display duplicate department numbers. 3. Find the number of all employees. 4. List the highest and lowest wages. 5. List the average salary and total salary of the employees. 6. […]

Redhat7/CentOS7 network configuration and management (nmtui, nmcli, GNOME GUI, ifcfg file, IP command)

Background: As a system administrator, you often need to deal with host network problems, and there are several methods and tools for configuring and managing the network. Here are a few ways to organize and share the network configuration and management. 1. Overview of NetworkManager In Red Hat Enterprise Linux 7, default networking services are […]