centos

Regarding the solution to the problem of Windows request timeout when pinging a virtual machine

05/02/2024 Centos 0

Regarding my Windows related problem of pinging the virtual machine host name request timeout in the command prompt 1. Check whether the firewall is turned off2. Check out Windows Defender Firewall with Advanced Security3. Check whether the VM service is turned on4. Click Change Network Adaptation Options5. Finally, I discovered that the IP address of the hosts file in my local C:\Windows\System32... »

The Docker container is started successfully but the browser cannot be accessed (after the Docker container is started, check docker ps -a and you cannot see the ports (the ports column is empty) | The linux kernel version and the docker version are not compatible)

05/02/2024 Centos 0

Scenario: The Docker container starts successfully but the browser cannot access it I am new to learning the basic operations of Docker containers. I pulled the tomcat image and entered the run container command to run a series of container operations without any problems. However, I cannot access the port when I access it through the browser. [root@localhost ~]# docker run -d -p 8081:8080 --name ... »

CentOS7 detailed installation tutorial–super detailed graphic introduction

05/02/2024 DevOps 0

CentOS7 detailed installation tutorial–super detailed graphic introduction VMware CentOS installation steps 1. Preparation before installation 2. Download the image file 3. Start the installation Step 1: File → New Virtual Machine or directly click the Create New Virtual Machine icon Step 2: Select Typical (Recommended) → Next Step 3: Install the operating system later Step 4: Select operati... »

Centos7 configures Alibaba Cloud yum source

03/02/2024 Alibaba Cloud 0

Centos7 configures Alibaba Cloud yum source reason: The default yum source of the system is foreign, and the download is slow; configure the domestic source here, the download is fast, and the network is stable. [Preparation: If wget is not installed, you need to install wget first; download and install wget through the command yum install wget] 1. Enter the directory cd /etc/yum.repos.d/ to back ... »

[Linux] Use of basic development tools in Linux environment – yum | vim | gcc & g++ | gdb | make & makefile | progress bar | git

03/02/2024 Linux 0

Use of basic development tools in Linux environment 1. Linux package manager yum1.1 What is a software package1.2 Three steps for software installation1.2.1 View software packages1.2.2 Install software1.2.3 Uninstall software 2. vim2.1 Basic concepts of vim2.2 vim command mode instruction set2.2.1 Move the cursor2.2.2 Text operations 2.3 vim bottom line mode instruction set2.4 Simple vim configura... »

Alibaba Cloud server construction and Pagoda panel installation (graphic tutorial)

29/01/2024 Centos 0

I bought a cloud server at a previous Alibaba Cloud event. I was a little confused when I first got it. Then I collected information, organized notes, and made a simple tutorial on setting up a cloud server. Installation system: Linux CentOS 8.2 64-bit 1. Change the instance password ExampleThat is, instance can be understood as an independent computing unit virtualized in cloud computing resource... »

Troubleshooting ideas and solutions to the problem of high CPU usage in Linux systems

29/01/2024 Centos 0

Article directory Prefacemethod oneMethod Two case analysisscene descriptionResolution processSolution Summarize This article mainly introduces to you the troubleshooting ideas and solutions to the problem of high CPU usage in Linux systems. The article introduces it in great detail through sample code. It has certain reference learning value for everyone to learn or use Linux. Friends who need it... »

[Linux Ladder] Chapter 2 · Linux system environment setup

22/01/2024 Centos 0

write in front Hello everyone, my name is kikokingzz. My name is too long to remember. You can call me kiko~ Starting today, I will officially start a new check-in topic——【Linux Ladder】, that’s right! This is the ladder plan, which aims to combine practical combat with theory through a series of special explanations.Thorough grasp of theoretical knowledge of operating systems，Be proficient in Linu... »

1+X intermediate mall cluster construction (three hosts)

20/01/2024 Load Balancing 0

Mall cluster construction Article directory Mall cluster constructionEnvironment introduction:Build basic environment preparationBuild vsftpd serviceBuild a read-write separated database clusterBuild a Zookeeper service clusterBuild a Kafka service clusterInstall redis serviceInstall Nginx serviceBackend Jar package deploymentAnalysis of Jar package # Approximate service deployment location: # By ... »

[Resolved]Error: Failed to download metadata for repo ‘appstream’ : Cannot prepare internal mirrorlist

15/01/2024 DevOps 0

In the process of learning to use docker technology, I customized a new image based on the centos image. The basic image centos requires vim and net-tools to be installed in advance. However, at the beginning, throughyum -y install vimWhen installing vim, an error message appears: Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist The... »

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