Docker Engine and Compose Installation on CentOS 7 with Mirror Optimization

Yum Repository Configuration Update the package manager to utilize accelerated mirrors. Preserve the existing configuration before modifications: cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak Fetch the updated repository definition: curl -fsSL -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Cen ...

Posted on Fri, 07 Aug 2026 16:21:12 +0000 by ShanesProjects

Setting Up Python 3.7.2 and Related Services on CentOS 7

Install System Dependencies Update the system and install required development libraries and tools: yum -y update yum -y install gcc openssl-devel zlib-devel readline-devel libffi-devel bzip2-devel mysql-devel python-devel java wget git redis nginx supervisor Enable services to start automatically after a reboot: syst ...

Posted on Sat, 01 Aug 2026 16:54:54 +0000 by charp

Deploying Flask Applications on CentOS 7.9 with uWSGI and Nginx

Server Environment Setup Host: 4-core 8GB CentOS 7.9 virtual machine (verify with cat /etc/redhat-release) Dependencies: Anaconda, Python 3.8, uWSGI, Nginx Python 3.8 Compilation and Installation Update Yum Repositories First back up default CentOS base repo: cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak Replace wi ...

Posted on Sat, 01 Aug 2026 16:36:45 +0000 by carsale

Compiling MySQL 8 from Source on CentOS 7

This guide outlines the process of installing MySQL 8 by compiling its source code on a CentOS 7 system. Source compilation provides maximum control over the installation and optimization. 1. System Environment Overview Before beginning, verify the operating system details. The instructions are tailored for CentOS 7. [root@host ~]# cat /etc/red ...

Posted on Fri, 31 Jul 2026 16:43:22 +0000 by KevinMG

Installing and Setting Up Nginx on CentOS 7

Prerequisites Log in to your CentOS 7 server using an account that has sudo privileges. Ensure that no other service (such as Apache) is occupying port 80 or 443, as this would prevent Nginx from starting. Installing Nginx Nginx is available from the EPEL (Extra Packages for Enterprise Linux) repository. Follow these steps to install it: Inst ...

Posted on Fri, 31 Jul 2026 16:43:08 +0000 by dougmcc1

Setting Up a Three-Node MongoDB Replica Set on CentOS 7

Installl MongoDB Create a custom YUM repository: sudo tee /etc/yum.repos.d/mongodb.repo <<EOF [mongodb-org] name=MongoDB Repository baseurl=https://mirrors.aliyun.com/mongodb/yum/redhat/7/mongodb-org/4.2/x86_64/ gpgcheck=1 enabled=1 gpgkey=https://www.mongodb.org/static/pgp/server-4.2.asc EOF Install the MongoDB package: sudo yum install ...

Posted on Sun, 26 Jul 2026 16:04:57 +0000 by mherr170

Upgrading OpenSSH to Version 9.8 on CentOS 7 with Security Patching

Prerequisites and System Preparation Before proceeding, ensure the system has essential build tools and libraries installed: yum install -y vim gcc gcc-c++ glibc make autoconf openssl openssl-devel pcre-devel pam-devel zlib-devel tcp_wrappers-devel libedit-devel perl-IPC-Cmd wget tar lrzsz Update zlib Library Download and compile the latest zl ...

Posted on Tue, 21 Jul 2026 16:04:49 +0000 by wafflestomper

How to Fix CentOS Yum Error "Could not resolve host: mirrorlist.centos.org; Unknown error" (2024 Working Solution)

When attempting to install yum auxiliary packages on a CentOS 7 virtual machine environmetn prepared for Docker runtime deployment: sudo yum install -y yum-utils The following host resollution error is returend: Loaded plugins: fastestmirror Determining fastest mirrors Could not retrieve mirrorlist http://mirrorlist.centos.org?arch=x86_64& ...

Posted on Fri, 03 Jul 2026 16:02:41 +0000 by ingchun

Deploying a Kubernetes Cluster on CentOS 7

A Kubernetes cluster requires atleast three CentOS 7 servers. One master node (hostname: master-k8s). Two worker nodes (hostnames: worker-k8s-01, worker-k8s-02). All steps in the Environment Preparation and Docker Installation sections must be executed on all three nodes: master-k8s, worker-k8s-01, and worker-k8s-02. Environment Preparation C ...

Posted on Thu, 25 Jun 2026 17:32:48 +0000 by solaris77

Securing Nginx with Let's Encrypt SSL on CentOS 7

Let's Encrypt is a free, automated, and open Certificate Authority (CA) provided by the Internet Security Reseacrh Group (ISRG). It allows website owners to obtain trusted SSL certificates that are recognized by all major modern browsers. This guide demonstrates how to use the Certbot tool to generate and manage SSL certificates for Nginx on a ...

Posted on Mon, 22 Jun 2026 16:23:32 +0000 by pixelsoul