This guide lists frequent Jenkins problems such as missing libXrender.so.1 and SSH transferring zero files, explains why they occur, and provides exact yum commands, path-adjustment tips, and shell-parameter checks to resolve them.
This article explains how Linux treats everything as a file, distinguishes Linux and shell commands, lists essential file and directory commands, and demonstrates installing and using the tree command to display directory structures.
This guide explains why using OAT to add a server can render yum unusable due to a broken Python interpreter, analyzes the underlying script logic that causes the failure, and provides two practical remediation methods—including fixing the Python symlink and adjusting the installation script—along with the full script for reference.
This guide walks you through Linux package management fundamentals, covering yum and apt/apt‑get commands, dpkg/rpm operations, and a step‑by‑step example of compiling and installing software from source such as Nginx, while highlighting convenience, customizability, and permission considerations.
This step‑by‑step guide shows how to add the Yandex repository, install ClickHouse server and client on Rocky Linux or CentOS, configure the service, test local connections, create databases, enable remote access, and verify the setup, all within 15‑20 minutes.
This article provides a comprehensive, cross‑platform tutorial for downloading MySQL RPM bundles, installing required dependencies, using rpm or yum to install MySQL on various RHEL‑compatible distributions, starting the service, retrieving the temporary root password, and securely changing it to a permanent one.
This guide walks through Linux package management fundamentals, covering yum on RPM‑based systems, apt/apt‑get on Debian‑based systems, low‑level dpkg and rpm commands, and step‑by‑step source compilation with practical examples, tips, and a concise comparison of convenience, customizability, and required privileges.
This comprehensive guide walks you through MySQL fundamentals, its key features, storage engines, architecture, and step‑by‑step installation and configuration across major Linux distributions, including repository setup, service enablement, password initialization, and verification of a working database server.
This step‑by‑step guide explains how to design, provision, and configure a private Linux package mirror for Ubuntu, CentOS, and Docker, covering hardware sizing, network layout, APT/YUM repository setup, Docker Registry deployment, HAProxy load balancing, Keepalived high‑availability, monitoring with Prometheus and Grafana, security hardening, automated synchronization scripts, and troubleshooting procedures.
This guide walks you through installing software on CentOS using three primary methods—source/tarball compilation, RPM packages, and Yum—demonstrating each approach with real‑world examples such as Redis, RabbitMQ, and Nginx, and covering essential concepts, commands, and configuration steps.
This guide explains why the default CentOS 7 YUM repositories are slow for Chinese users and provides step‑by‑step instructions—including backing up existing .repo files, downloading Alibaba Cloud mirrors, adjusting version numbers, refreshing the cache, verifying updates, troubleshooting common errors, and advanced tips such as adding EPEL—so you can achieve faster, more reliable package management.
This guide walks through mounting an ISO to create a local yum repository, configuring popular Chinese mirrors for remote repos, and demonstrates core yum/dnf commands for installing, removing, updating, listing, grouping, reinstalling, and downloading packages, plus how to view and undo command history on CentOS 8.5 systems.
This guide walks through installing software on CentOS using source tarballs, RPM packages, and yum, covering terminology, step‑by‑step commands, and practical examples with Redis, RabbitMQ, and Nginx.
This tutorial walks you through setting up both HTTP and FTP based Yum repositories on two Linux machines, covering environment preparation, server and client configuration, mounting media, creating metadata, and essential Yum commands for managing packages.
This guide walks you through installing common backend services on CentOS—building Redis from source, deploying RabbitMQ via RPM, and adding Nginx with YUM—while explaining key concepts like tarballs, RPM metadata, and YUM repository configuration.
This guide explains how to use the major Linux package managers—apt, yum, dnf, pacman, and zypper—to update repositories, install, upgrade, and remove software, as well as advanced tasks like searching, viewing package info, handling transactions, configuring repositories, and troubleshooting common issues.
This guide explains runtime and build-time package dependencies on Linux, demonstrates how to use apt, yum, dnf, pacman, and other tools to automatically or manually fix missing packages, version conflicts, and shared‑library problems, and provides practical command examples for each major distribution.
This guide explains how to install and use the rzsz utility on Windows and remote Linux machines through XShell, covering network verification, package installation via yum, and file upload/download commands with both drag‑and‑drop and terminal‑based methods.
This guide compares the major Linux package managers—yum/apt for RPM‑based and Debian‑based systems and rpm/dpkg for handling .rpm and .deb files—detailing their configuration files, common commands for installing, updating, removing, querying, and cleaning packages, plus useful command‑line examples.
This article explains the concepts and advantages of NoSQL databases, categorizes the four main types, introduces MongoDB’s data model and components, and provides step‑by‑step instructions for installing MongoDB 7.0 on CentOS 7 using both yum repository and manual RPM packages.
This guide explains how to install Logwatch on CentOS, configure its settings, run it manually or via daily cron, and interpret the sample email output that summarizes system logs, SSH activity, installed packages, and disk usage.
This article introduces the most widely used Linux package managers—dpkg, apt, rpm, yum, and dnf—explaining their purpose, supported distributions, and providing comprehensive command‑line examples for installing, removing, querying, and managing software packages.
This guide introduces the most common Linux package management tools—dpkg, apt, rpm, yum, and dnf—explaining their purposes, supported distributions, core command‑line options, and practical examples for installing, updating, querying, and removing software packages.
This guide introduces the most common Linux package managers—dpkg, apt, rpm, yum, and dnf—explaining their purpose, core commands, options, and practical examples so readers can install, update, query, and remove software across Debian‑based and Red Hat‑based distributions.
This guide explains yum, the RPM‑based package manager used in Fedora, Red Hat and SUSE, covering its purpose, command syntax, key options, parameter meanings, and practical examples for installing, updating, searching, and cleaning packages.
This guide walks through installing Docker CE on a CentOS 7 system, covering prerequisite kernel checks, repository configuration, package installation, verification with hello‑world, common troubleshooting, and clean removal steps, while explaining core Docker concepts such as images, containers, and registries.
This guide explains what Jenkins is, outlines its main features, and provides step‑by‑step instructions for installing Jenkins on Linux via three methods—yum package, Tomcat container, and Docker—including all required commands, configuration files, and how to retrieve the initial admin password.
This tutorial demonstrates how to configure an open‑source Squid proxy in an AWS VPC to restrict Internet access, allow only approved Amazon S3 buckets and Yum repositories, route traffic through specific gateways, and achieve high availability using Auto Scaling and Route 53.
This article outlines eight practical methods for installing Python packages—including easy_install, pip, pipx, setup.py, yum, pipenv, poetry, and curl pipelines—providing command examples and usage tips for each approach.
This guide walks through configuring Alibaba Cloud YUM repositories, installing common utilities, disabling firewalls and NetworkManager, optimizing SELinux, synchronizing time, increasing file descriptors, customizing the command line, tuning kernel parameters, and setting the hostname on a CentOS 7 system.
This tutorial walks you through checking the pre‑installed Python version, locating its binaries, downloading Python 3.6.5 source, installing required dependencies, compiling and installing the interpreter, creating symlinks, and configuring environment variables on a Linux system.
This guide explains how to manage Linux software packages using RPM, YUM, DNF and manual source compilation, covering preparation steps, repository configuration, common commands, and practical examples with full command‑line snippets.
This guide walks through diagnosing and fixing typical yum command failures on CentOS 7, covering repository 404 errors, package installation failures caused by immutable directories, and missing Python interpreter issues, with concrete commands and step‑by‑step solutions.
This guide walks you through diagnosing and resolving typical yum failures on CentOS 7, covering 404 repository errors, install‑time unpacking failures, and missing Python interpreter issues with clear commands, file checks, and corrective actions.
This guide walks you through diagnosing and resolving typical yum command failures on CentOS 7—including 404 repository errors, package installation failures caused by immutable file attributes, and missing Python interpreter issues—providing step‑by‑step commands, repository configuration tips, and file‑system fixes to restore yum functionality.
This guide walks through configuring a local yum repository on CentOS 8 by creating a mount point, mounting an ISO (via CD/DVD or loopback), backing up existing repo files, writing a new repo configuration, cleaning the cache, enabling auto‑mount at boot, and introduces DNF with essential commands.
This tutorial explains how to use the yum update command on RPM‑based Linux systems, covering basic usage, repository handling, useful options like --nogpgcheck and --exclude, how to roll back updates, troubleshoot failures, and automate notifications with yum‑cron.
This guide walks you through YUM fundamentals, setting up a local CD‑ROM repository, configuring an Aliyun network mirror, and using common YUM commands—including installation, removal, updates, and troubleshooting lock‑file errors—on a CentOS system.
This guide explains step‑by‑step how to create local package repositories for RPM‑based (yum/dnf) and Debian‑based (apt) Linux systems, covering required tools, directory setup, metadata generation, repository configuration files, and example commands for easy deployment.
This guide explains Linux package naming conventions, how to inspect binary dependencies and installed libraries, and provides a comprehensive collection of RPM and YUM commands—including installation, query, verification, removal, and repository configuration—to help administrators manage software efficiently.
This guide explains how to use the yum command on CentOS to install, verify, list, and remove packages, manage repository configurations, and perform offline downloads, providing practical tips for both beginners and experienced Linux administrators.
This guide walks through creating a local CentOS Yum repository from an ISO image, backing up the default repo files, mounting the ISO, configuring a local repo, switching to Aliyun or 163 mirrors, setting repository priorities with yum‑plugin‑priorities, and testing package installation to ensure the local source is used first.
This guide shows how to create a local Yum repository on CentOS using the installation ISO, back up and replace the default repo files, mount the ISO, configure a repo file, clean the cache, then switch to domestic Aliyun or 163 mirrors, set repository priorities, and verify the changes with package installation tests.
This guide explains the RPM package naming rules, essential rpm commands for installing, erasing, querying, verifying, and upgrading packages, as well as YUM configuration, repository definition, and common YUM commands for managing software on Red Hat‑based Linux systems.
This article explains why yum install commands return 404 errors on CentOS due to an undefined $releasever variable, analyzes the root cause in yum configuration, and provides a step‑by‑step solution and useful troubleshooting tips for operations engineers.
This tutorial explains multiple methods to examine RPM package dependencies on Red Hat‑based systems, covering commands for installed and uninstalled packages, using tools such as rpm, yumdownloader, repoquery, rpmreaper, and rpmdep, with step‑by‑step examples and required installations.
