This article introduces Easysearch, a lightweight, secure, Elasticsearch‑compatible search database, outlines its core features and applicable scenarios, and provides a step‑by‑step CentOS 7 deployment guide together with practical verification commands and future development considerations.
This guide walks you through installing NFS on CentOS 7, creating a shared directory, configuring export options, starting the service, and then configuring a client to automatically mount the share using /etc/fstab, with verification steps included.
This article introduces Apache Hadoop’s open‑source framework, explains its core components such as HDFS, MapReduce, ZooKeeper, HBase, Hive, Pig, Mahout, Sqoop, Flume, Chukwa, Oozie, Ambari and YARN, and outlines the steps to set up a beginner‑level Hadoop cluster on CentOS 7.
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 article walks through the hardware and software preparation, configuration, deployment, testing, and troubleshooting steps required to set up a Ceph distributed block storage cluster on CentOS 7, including node roles, RAID setups, and Ceph‑deploy commands.
This guide explains how firewalld works on CentOS 7, covering zone concepts, configuration file locations, command‑line and XML methods for adding ports, common firewall commands, and the steps to replace firewalld with the traditional iptables firewall.
This guide walks through installing MySQL Server 5.7 on CentOS 7 via the official RPM repository, explains why the default root login fails, and provides step‑by‑step commands to stop the service, start it with skip‑grant‑tables, update the root password, and restart MySQL for successful login.
