Computer Networks

Computer Networks

Infrastructure, Systems, and Connectivity

Network ProtocolsCommunication InfrastructureOperating Systems and Server ManagementNetwork Security and EncryptionCloud Computing and Virtualization

Articles in this Section

How to Limit Available PHP Versions in MultiPHP Manager and Manage php.ini Directives with

This guide explains how to restrict visible PHP versions for cPanel users through MultiPHP Manager and how to manage php.ini directives when PHP‑FPM is enabled. It covers feature lists, packages, domain-level configuration, phpinfo validation, and modifying PHP‑FPM pool settings.

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How to Manage Your php.ini Directives with PHP‑FPM and Set PHP Version Recommendations

This guide explains how to manage php.ini directives when PHP‑FPM is enabled and how to configure PHP version recommendations in cPanel’s MultiPHP Manager. It covers verifying PHP‑FPM, creating a phpinfo file, reviewing and modifying directives globally or per domain, and editing the JSON configuration for recommended PHP versions.

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HTTP Error Codes, Quick Fixes, and InstaSite Configuration File Guide

This article explains common HTTP error codes, their causes, and quick fixes for both client‑side and server‑side issues. It also describes the InstaSite configuration file used by cPanel & WHM to automatically generate websites, including its JSON structure and required parameters.

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How to Launch a cPanel & WHM Instance on Amazon Lightsail

This article explains how to launch a cPanel & WHM instance on Amazon Lightsail, including selecting a region, choosing a blueprint, configuring SSH keys, selecting a plan, creating the instance, monitoring installation, setting up WHM, assigning a static IP, and managing firewall ports.

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How to Launch an AWS AMI Instance for cPanel & WHM

This guide explains how to launch a cPanel & WHM instance on Amazon Web Services™ (AWS) using the official Amazon Machine Image™ (AMI). This is the recommended and most reliable method for deploying cPanel & WHM on AWS.

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How to Launch an Azure Virtual Machine with cPanel & WHM

This guide explains how to create and configure an Azure virtual machine using the official cPanel & WHM Marketplace image. It covers selecting the OS image, configuring project and instance details, authentication methods, deployment steps, accessing WHM for the first time, and managing your Azure VM.c

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Linode Instance Management and the cpuser_service_manager Script with Ubic Subsystem

This guide explains how to manage a Linode instance after deployment, including accessing the server, performing essential instance actions, and handling lifecycle operations. It also provides a complete overview of the cpuser_service_manager script and the Ubic subsystem, which allow cPanel users to manage user-level services efficiently.

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Understanding and Using the splitlogs Binary in cPanel & WHM

This article explains the purpose, functionality, syntax, and performance‑tuning options of the splitlogs binary used by cPanel & WHM to optimize Apache log handling. It covers arguments, configuration files, and best practices for improving log performance and resource usage.

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Complete Guide to the Passenger Package in EasyApache 4

This article explains the new ea-apache24-mod-passenger package, which replaces older Passenger modules in EasyApache 4. The updated package no longer installs Ruby automatically and instead uses the newest installed versions of Ruby, NodeJS, and Python on the system. It also covers installation methods, default paths, symlinks, troubleshooting missing parameters, and Passenger runtime settings.

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NGINX with Reverse Proxy in cPanel & WHM: Installation, Configuration, and Default Behavior

This article explains how NGINX with reverse proxy works in cPanel & WHM when installed via the ea-nginx package. It covers installation, service management, user and application integration, optional NGINX packages, compression modules, HTTP/2, NJS, and the default configuration changes applied to Apache, logging behavior, CloudFlare compatibility, and file access rules.

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Customizing NGINX with Reverse Proxy in cPanel & WHM

This article explains how to customize NGINX with reverse proxy on cPanel & WHM servers. It covers global configuration settings, custom .conf files, server block customization, user-level configuration, Cloudflare management, file access restrictions, increasing worker processes, and enabling the X‑Cache‑Status header.ز

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Caching and Troubleshooting NGINX with Reverse Proxy in cPanel & WHM

This article explains how caching works in NGINX with reverse proxy on cPanel & WHM servers. It covers cache storage, cache control headers, custom cache keys, using .htaccess for cache management, third‑party integration, and common troubleshooting issues such as proxy_headers_hash errors and restart failures.

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