Infrastructure, Systems, and Connectivity
This article explains how to manually delete a MySQL database, enable the Slow Query Log in MySQL or MariaDB, resolve PostgreSQL password authentication errors, restore a user’s database access using restoregrants, and install or update PostgreSQL on a cPanel & WHM server.
This article explains why upgrading to the latest stable version of MySQL or MariaDB is essential for security, compatibility, and performance. It also provides a complete step‑by‑step guide for planning, backing up, upgrading, testing, and troubleshooting database upgrades in cPanel & WHM environments.
This article explains how to use the experimental MysqlDump Stream feature to generate MySQL database dumps over WebSocket, how to authenticate using API tokens or Basic Authentication, required parameters, example commands, and how to troubleshoot common MySQL profile connection issues on remote servers.
This article introduces essential Linux commands that cPanel and WHM users can use to manage files, directories, processes, and system configurations. It also explains how to combine commands, view system information, and locate common configuration files on a Linux server.
This article explains how to install and uninstall Node.js on RHEL-based and Ubuntu servers, how to deploy Node.js applications, how to access the Linux command line through different operating systems and cPanel/WHM interfaces, and how to clear a full partition—especially when the /var directory fills up.
This article explains how to convert a CentOS 8 server to AlmaLinux OS, how to enable stub resolvers, and how to manage and clean up hard drive space on a cPanel & WHM server. It includes commands, warnings, verification steps, and best practices for safe system maintenance.
This guide explains how to run traceroute and ping on different operating systems, how to diagnose and resolve high disk I/O issues on a server, and how to properly configure and run cPanel & WHM inside Linux Containers (LXC). It includes examples, warnings, and required configuration steps.
This article explains how 1:1 NAT works in cPanel & WHM, how to manage IP mappings and rebuild NAT configurations, best practices for script and file permissions to prevent privilege escalation, and a complete overview of cPanel’s internal PHP packages, modules, loaders, and configuration behavior.
This article explains the recommended best practices for creating cPanel & WHM virtualization templates for VPS and VM environments. It covers minimal installation guidelines, pre‑installation configuration files, snapshot preparation, preventing license locks, template deployment, updating templates, and resolving common issues in OpenVZ and Virtuozzo environments.
This guide explains how cPanel Linked Nodes work, how parent and child nodes communicate, the restrictions and security model of distributed accounts, how mail‑offloading behaves, and how to create, manage, and dedistribute accounts across linked nodes in cPanel & WHM.
This guide provides a complete disaster recovery procedure for cPanel & WHM servers after a hard‑drive crash or system failure. It covers preparation steps, rebuilding the server, provisioning a new drive, recovering data through chroot, backing up accounts and configurations, restoring files to a new system, and validating the recovered server.
This guide explains how to activate a Site Quality Monitoring subscription in cPanel, including the sign‑up process, security code verification, and plan selection. It also covers how to enable user management of Interface Analytics through the panel.ini file, and provides instructions for cleaning unmanaged log files to reduce disk usage.
