In this section, we explore the world of programming, algorithms, networks, and infrastructure
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.
This guide explains when and why you should configure redirects manually in your .htaccess file, how to access and edit the file in cPanel, and provides clear examples of 301, 302, and CMS‑specific redirects such as Drupal. Manual redirects are essential when third‑party applications override or ignore cPanel’s default redirect rules.
This guide provides a complete reference for configuring firewall rules for cPanel & WHM servers. It includes all required ports, inbound/outbound rules, security recommendations, license callback behavior, WebPros service IPs, and practical examples for CSF, iptables, and nftables.
This guide explains how to manage Site Quality Monitoring subscriptions in cPanel, including upgrading, downgrading, and reassigning subscriptions, as well as accessing the service without cPanel. It also covers how to manually remove Site Publisher–generated websites, which is necessary now that the Site Publisher interface has been removed in cPanel version 134.
This guide explains how to check, enable, repair, and troubleshoot disk quotas in cPanel & WHM. It covers quota verification, initialization, XFS‑based quota fixes, Ubuntu quota module issues, CloudLinux considerations, and Virtuozzo/OpenVZ quota requirements. A quick‑action summary is also included.
This guide explains how to restart services in cPanel & WHM, how to configure shared IP addresses for reseller accounts, and how to set up service proxying for cPanel users. It includes WHM methods, command‑line tools, API examples, warnings, and best practices for safe configuration.ز
This guide explains how to update all major components of a cPanel & WHM server, including cPanel itself, Apache, PHP, MySQL/MariaDB, Perl, system kernels, and third‑party packages. It also includes the officially supported database versions for each operating system and a complete list of system user accounts created by cPanel & WHM.
This guide explains several advanced system components in cPanel & WHM, including the statistics software configuration file, how to uninstall legacy Ruby installations, how the Domain TLS system works, how the license callback mechanism communicates license changes, and how to use the cpanelsync.exclude file to prevent updates to specific cPanel-distributed files.
