linux

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... »

ssh: connect to host localhost port 22: Connection refused

04/02/2024 SSH 0

Today when installing hadoop on this machine, I encountered a problem. ConfigurationsshLogin permission failed xxx@yyy:/opt/hadoop$ ssh localhost ssh: connect to host localhost port 22: Connection refused I searched many articles on Baidu but could not get it, and finally passedbing search (international version)Got it done, share it here. 1 Confirm whether OpenSSH server is installed sudo apt lis... »

Solution to SSL failure reported during compilation and installation of python3.10

03/02/2024 Ssl 0

1. Upgrade openssl version – compile and install Download the OpenSSL file from the official website https://www.openssl.org/source/openssl-1.1.1n.tar.gz 2. After downloading, unzip and compile #cd software #tar -zxvf openssl-1.1.1n.tar.gz #cd openssl-1.1.1n #./config --prefix=/usr/local/openssl #make #make install 3. Modify the link file #Back up the original link #mv /usr/bin/openssl /usr/... »

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... »

Use the jenkins pipeline to complete automatic deployment of services to K8s

02/02/2024 Docker 0

illustrate Through this article, you can easily get started with the cicd process. The local test environment is the springboot microservice project. The user submits the code to gitlab, triggers Jenkins to pull the code on gitllab, then completes the compilation and builds it into a jar package, and simultaneously completes the sonarsqube code quality inspection. Then generate the image inside Je... »

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... »

Page 1 of 130123›»