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This tutorial walks through installing Samba on CentOS 7, creating system and Samba users, setting up a shared directory, configuring smb.conf, starting services, and then configuring a client to connect, mount, and auto‑mount the share using CIFS, providing a complete end‑to‑end solution.
This tutorial walks through configuring an NFS server and client on CentOS 7, installing the LAMP stack, setting up a virtual host, deploying WordPress, configuring the MySQL database, and verifying the site works, providing complete command‑line instructions and code snippets.
Learn how to create, configure, and manage a software RAID 5 array on CentOS 7 using mdadm, covering partition preparation, RAID creation, filesystem formatting, mounting, status checks, hot‑spare handling, device removal, and expansion, with complete command examples and expected outputs.
This guide provides step‑by‑step instructions for installing Docker Engine on a CentOS 7 system, including removal of any existing Docker packages, adding the Alibaba Cloud yum repository, installing required utilities, starting and enabling the Docker service, and verifying the installation.
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.
After CentOS 7 reaches end‑of‑life on June 30 2024, this guide explains why you must migrate, outlines three essential pre‑migration preparations, and provides detailed step‑by‑step commands to upgrade first to AlmaLinux 8 and then to AlmaLinux 9, including post‑migration checks and common pitfalls.
This guide walks through preparing two CentOS 7.9 servers, installing Docker and Kubernetes 1.19 components, initializing a master node, joining a worker node, and validating the cluster with a sample Nginx deployment, including common troubleshooting tips.
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 article explains Linux I/O scheduler concepts, compares the main algorithms (noop, cfq, deadline), shows how to view and modify scheduler settings on CentOS 6/7, and presents performance test results indicating the optimal scheduler choices for SSD and SAS disks.
This guide explains why the traditional /etc/fstab comment method fails on newer Linux distributions and provides two reliable techniques—masking the swap.target unit with systemd and adding the noauto option to the fstab swap entry—to permanently disable swap across Ubuntu, CentOS, openEuler, and other major systems.
A Spring Boot application on CentOS 6.x hung while fetching Apollo configuration because a single /etc/hosts entry listed dozens of domain names, causing hostname resolution to fail; splitting the entry into multiple lines restored normal startup and highlighted a kernel‑specific hosts parsing bug.
With CentOS 8 reaching end‑of‑life, this guide reviews seven viable replacements—AlmaLinux, Ubuntu/Debian, Oracle Linux, openSUSE, Rocky Linux, VzLinux, and Springdale Linux—detailing their compatibility, support, and migration considerations to help administrators select the right server OS for 2025.
This tutorial provides a step‑by‑step guide to set up a fully automated CI/CD pipeline on CentOS 7 that installs Docker, deploys Jenkins in a container, configures Maven and required plugins, creates a Jenkins job, builds a Spring Boot application with Dockerfile, and runs the resulting container, all with minimal pitfalls.
The article explains that CentOS Linux 8 ceased updates at the end of 2021 and CentOS 7 will reach end‑of‑support on June 30, 2024, describes the shift to CentOS Stream, and outlines several alternative operating systems—including Rocky Linux, Ubuntu, RHEL, and domestic Chinese distributions—providing guidance for enterprises and developers on migration paths.
This comprehensive tutorial walks developers through preparing the operating system, disabling firewalls and SELinux, setting up users and JVM options, configuring single‑node and multi‑node Elasticsearch clusters, integrating Kibana, and deploying everything via Docker on CentOS with detailed code examples.
With the discontinuation of CentOS Linux, this article evaluates four leading replacement operating systems—AlmaLinux, Rocky Linux, Ubuntu, and Debian—based on stability, long‑term support, and compatibility for enterprise environments.
With the end of CentOS Linux, this article reviews four widely‑used, enterprise‑grade Linux distributions—Ubuntu, AlmaLinux, Rocky Linux, and Debian—detailing their origins, features, compatibility with CentOS, and suitability for production environments.
This article provides a comprehensive comparison between CentOS and Ubuntu, covering their histories, advantages, disadvantages, package management systems, software repositories, community support, and typical use cases, to help readers choose the most suitable Linux distribution for server or desktop environments.
This article traces the evolution of CentOS within the Linux ecosystem, explains the shift to CentOS Stream, outlines the end‑of‑life schedule, and evaluates various replacement distributions—including Rocky Linux, Ubuntu, Oracle Linux, and several Chinese OS projects—providing guidance for different enterprise and development scenarios.
The article analyzes why a Java service repeatedly crashes around midnight in test environments, tracing the issue through system limits, Java version checks, cron job execution, strace logs, and Linux OOM killer behavior, and finally proposes configuration and version upgrades to prevent the failures.