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When using a virtual machine for Linux software development, the shared folder feature often does not work properly, resulting in the following issues: When files are modified on Windows, the changes do not immediately reflect in Linux, requiring some waiting. When files are modified on Linux, the changes do not appear on Windows, again requir ...

Understanding Yum and Rpm in CentOS Introduction to Yum and Rpm Yum (Yellowdog Updater, Modified) and Rpm (Red Hat Package Manager) are essential tools for software package management in Linux systems, particularly in CentOS and other Red Hat-based distributions. Rpm Package Manager Rpm serves as the fundamental package management tool in Red H ...

Disable SELinux permanently and temporarily: sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config setenforce 0 Remove any existing MySQL installation and install MySQL 5.6: rpm -ivh https://dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpm yum -y install mysql-server Edit /etc/my.cnf and add the following under [mysqld ...

MySQL is a relational database management system developed by MySQL AB (founded by Michael Widenius) from Sweden. It was acquired by Sun Microsystems in 2008 for $1 billion, and subsequently Oracle acquired Sun in 2009. MySQL organizes data in separate tables rather than a single large repository, which enhances performance and flexibility. As ...

Overview of Zabbix Monitoring Zabbix is an open-source monitoring solution that collects data from servers, network devices, and applications. The server component gathers metrics via SNMP or agent-based polling and stores them in a database (MySQL, Oracle, PostgreSQL). A PHP frontend (Apache/Nginx) provides visualization and configuration. Dat ...

Binary application components — executables, libraries, configurations, and documentation — are bundled into package files so they can be installed, upgraded, queried, and removed consistently. On RPM‑based distributions the native low‑level tool is rpm; higher‑level tools such as yum (and its successor dnf) add automatic dependancy resolution ...

Symbolic links provide a way to reference a source directory from a different location. To create a soft link, ensure the target link name does not already exist within the parent directory. Navigate to the parent directory (e.g., /home) and execute the link command. # Syntax: ln -s /path/to/source /path/to/link ln -s /data/source_directory /ho ...

Setting Up CertBot for Nginx SSL Certificates Installing CertBot CentOS 7 Enstallation Prerequisites yum install epel-release # Install EPEL repository yum install snapd # Install snapd package # Start the systemd unit that manages the main snapd communication socket systemctl enable --now snapd.socket # Create symbolic link ln -s /va ...

System Requirements Operating System: CentOS release 7.8.2003 Gocron Version: >v1.5.3 MySQL Version: 5.5 Gocron Overview Gocron is a lightweight centralized task scheduling and management system developed in Go language, designed as an alternative to Linux crontab. Manage Installation and Configuration In Gocron, data is stored in a MySQL da ...

Package Management in Different Linux Distributions Linux distributions utilize distinct package managers for software installation, updating, and removal. Administrative (root) privileges are required for these operations. CentOS / RHEL (yum) The yum package handler is the standard tool for Red Hat-based distributions. To install a network uti ...